Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| carbonic anhydrase inhibitors. inhibition of red blood cell ostrich (struthio camelus) carbonic anhydrase with a series of aromatic and heterocyclic sulfonamides. | the purification of red blood cell carbonic anhydrase (ca, ec 4.2.1.1) from ostrich (scca) blood is reported, as well as an inhibition study of this enzyme with a series of aromatic and heterocylic sulfonamides. the ostrich enzyme showed a high activity, comparable to that of the human isozyme ii, with kcat, of 1.2 x 10(6) s(-1) and kcat/km of 1.8 x 10(7) m(-1)s(-1), and an inhibition profile quite different from that of the human red blood cell cytosolic isozymes hca i and ii. scca has generall ... | 2005 | 16206834 |
| bacteriological evaluation of commercial canine and feline raw diets. | twenty-five commercial raw diets for dogs and cats were evaluated bacteriologically. coliforms were present in all diets, ranging from 3.5 x 10(3) to 9.4 x 10(6) cfu/g (mean 8.9 x 10(5); standard deviation 1.9 x 10(6)). escherichia coli was identified in 15/25 (64%) diets; however, e. coli o157 was not detected. salmonella spp. were detected in 5/25 (20%) diets; 1 each of beef-, lamb-, quail-, chicken-, and ostrich-based diets. sporeforming bacteria were identified from 4/25 (16%) samples on dir ... | 2005 | 16048011 |
| osteoinductivity of partially purified native ostrich (struthio camelus) bone morphogenetic protein: comparison with mammalian species. | bone morphogenetic proteins (bmps) are members of the tgf-beta superfamily. they are capable of inducing ectopic bone formation. until now, the main interest has been focused on mammalian osteoinductive bmps, and there are no reports of native bmp extracts of birds. in this study, we isolated and characterized native bmps of ostrich (struthio camelus) and compared them with identically isolated native bovine (cow) and reindeer bmps with regard to bmp pattern and osteoinductive capacity. the ostr ... | 2005 | 16005022 |
| extracellular matrix of ostrich articular cartilage. | the composition and organization of the extracellular matrix of ostrich articular cartilage was investigated, using samples from the proximal and distal surfaces of the tarsometatarsus. for morphological analysis, sections were stained with toluidine blue and analyzed by polarized light microscopy. for biochemical analysis, extracellular matrix components were extracted with 4 m guanidinium chloride, fractionated on deae-sephacel and analyzed by sds-page. glycosaminoglycans were analyzed by elec ... | 2005 | 15954467 |
| dynamics of fluorescence dequenching of ostrich-quenched fluorescein biotin: a multifunctional quantitative assay for biotin. | we describe a simple and rapid quantitative assay for biotin and biotin conjugates. the assay is based on the kinetic analysis of the enhancement of fluorescence of streptavidin/fluorescein biotin complexes in the presence of biotin. the kinetic response of fluorescence enhancement is proportional to the concentration of biotin. standard calibration curves based on the kinetic response are obtained and detection limits of approximately 10(-9)m are established. because the assay is amenable for u ... | 2005 | 15913533 |
| ostrich nutrition: a review from a zimbabwean perspective. | the ostrich is an important animal in many livestock industries and, in the developing world, the export of meat and skins is a valuable source of foreign currency. as the successful growth and reproductive performance of ostriches depends on good nutrition it is extremely important to provide the correct diet. some researchers have incorrectly assumed that poultry diets are useful for ostriches, but the vitamin and mineral requirements of these birds are unique and their diets should never be s ... | 2004 | 15861899 |
| [animal welfare aspects regarding the raising of breeding ostriches in germany]. | the commercial housing of african ostriches in germany for the breed and meat production still represents a disputed topic under the criterion of the animal's welfare. above all critics state that the frequently wet-cold weather in germany impairs the well-being and health of the animals. so far however there are just a few scientifically documented data about requirements for housing conditions of ostriches in central europe and thus hardly answers whether housing in germany is possible under t ... | 2005 | 15847067 |
| fibrino-necrotic typhlitis caused by escherichia fergusonii in ostriches (struthio camelus). | two adult ostriches developed anorexia, prostration, and severe hemorrhagic diarrhea, dying 24 hr after the onset of clinical signs. on postmortem examination, the cecal mucosa showed locally extensive areas of hemorrhages and fibrino-necrotic typhlitis with a white-yellowish material covering the mucosal surface. multiple serosal petequial hemorrhages and fibrinous peritonitis were present. histologic examination revealed an intense mononuclear infiltration in the lamina propria and submucosa o ... | 2005 | 15839434 |
| identification and molecular epidemiology of campylobacter coli isolates from human gastroenteritis, food, and animal sources by amplified fragment length polymorphism analysis and penner serotyping. | campylobacter coli is an infrequently studied but important food-borne pathogen with a wide natural distribution. we investigated its molecular epidemiology by use of amplified fragment length polymorphism (aflp)-based genotyping and penner serotyping. serotype reference strains and 177 danish isolates of diverse origin identified by routine phenotyping as c. coli were examined. molecular tools identified some 12% of field isolates as campylobacter jejuni, emphasizing the need for improved ident ... | 2005 | 15812025 |
| intrathoracic haemangiosarcoma in an ostrich (struthio camelus). | 2005 | 15789651 | |
| seroprevalence of toxoplasma gondii in farm-reared ostriches and wild game species from zimbabwe. | one hundred and seventy one serum samples from 10 game species from zimbabwe were tested for igg antibodies to toxoplasma gondii infection using the modified agglutination test (mat). significantly higher seroprevalences were found in the felidae (panthera leo) (92% of 26), bovidae (tragelaphus species) (55.9% of 34) and farm-reared struthionidae (struthio camelus) (48% of 50) compared to the other groups tested. among the bovidae, the nyala (tragelaphus angasii) had the highest seroprevalence o ... | 2005 | 15777687 |
| identification and quantitation of species in complex dna mixtures by real-time polymerase chain reaction. | six taqman real-time polymerase chain reaction (pcr) systems using minor groove binding (mgb) probes have been developed for the detection quantitation of bovine, porcine, lamb, chicken, turkey, and ostrich dna in complex samples. species-specific amplification was achieved by combining only two fluorogenic probes and 10 oligonucleotide primers targeting mitochondrial sequences, decreasing the cost of the assay significantly. the limits of detection ranged from 0.03 to 0.80 pg of template dna. a ... | 2005 | 15766713 |
| cloning and expression of ostrich trypsinogen: an avian trypsin with a highly sensitive autolysis site. | one of ostrich (struthio camelus) trypsinogen genes was cloned from pancreatic cdna. its amino acid sequence compared to known trypsin sequences from other species shows high identity and suggests that it is a member of the phylogenetically anionic trypsinogen i subfamily. after cytoplasmic over expression in escherichia coli and renaturation, the activation properties of ostrich trypsinogen were studied and compared to those of human trypsinogen 1 (also called as human cationic trypsinogen). os ... | 2005 | 15752690 |
| the sensitive innervation of the ostrich nasal mucosa. | the sensitive innervation of the ostrich's nasal mucosa, through impregnative gold chloride methods, was investigated. the autonomy innervation, constituted by ganglion cells placed along the course of nerve trunks was particularly represented in the respiratory tract of the nasal cavity. the somatic nerve component, composed by free and capsulated endings, was especially distributed in the vestibular district. the nerve corpuscles were morphologically classified as pacini, pacini-like, golgi-ma ... | 2004 | 15717458 |
| type 2 heat-labile enterotoxin (lt-ii)-producing escherichia coli isolated from ostriches with diarrhea. | the culture supernatant of escherichia coli, isolated from ostriches with diarrhea in brazil, caused elongation in vero cell, rounding in chinese hamster ovary (cho) cells and a cytoplasmic vacuolation in ostrich embryo fibroblasts (oef), but it was not cytotoxic for chicken embryo fibroblasts (cef). these effects were not neutralized by antiserum to cholera toxin. polymerase chain reaction assays showed that the ostrich e. coli contained the gene encoding (eltii-a), but not those for type 1 hea ... | 2004 | 15708822 |
| novel solution structure of porcine beta-microseminoprotein. | a number of beta-microseminoproteins (msps) have been identified from different species. msps are all non-glycosylated and disulfide bond-rich, but show a relatively low level of conservation. although all cys residues are conserved, our previous study showed that the disulfide bond pairings differ in porcine and ostrich msps. despite the variety of biological functions that have been suggested for msps, their real function is still poorly understood. furthermore, no 3d structure has been report ... | 2005 | 15701518 |
| differential effects of detergents, fatty acids, cations and heating on ostrich skeletal muscle 20s proteasome. | the 20s proteasome, the catalytic core of the 26s proteasome, has previously been isolated, purified and partially characterised from ostrich skeletal muscle (thomas, a.r., oosthuizen, v., naude, r.j., muramoto, k. 2002. biol. chem. 383, 1267-1270). due to the apparent latency of the 20s proteasome purified from various sources, this study focuses on further characterising the ostrich enzyme in terms of the effects of selected detergents, fatty acids and cations, as well as heating at 60 degrees ... | 2005 | 15694581 |
| enzymatic properties of rhea lysozyme. | rhea lysozyme was analyzed for its enzymatic properties both lytic and oligomer activities to reveal the structural and functional relationships of goose type lysozyme. rhea lysozyme had the highest lytic activity at ph 6, followed by ostrich and goose at ph 5.5-6, whereas the optimum of cassowary was at ph 5. ph profile was correlated to the net charge of each molecule surface. on the other hand, the ph optimum for oligomer substrate was found to be ph 4, indicating the mechanism of rhea cataly ... | 2005 | 15665474 |
| severe ocular trauma caused by an ostrich. | 2005 | 15665372 | |
| an outbreak of necrotic enteritis in the ostrich farm in korea. | an acute disease with high mortality occurred in the ostrich farm and characterized by depression, severe diarrhea and sternal recumbency. four dead ostriches of the farm were submitted to the national veterinary research & quarantine service, and diagnosed as necrotic enteritis. in the gross and histopathological examination, extensive diffuse fibrinonecrotic enteritis was found in the small intestine, especially jejunum. clostridium perfringens was isolated from a pure culture from the duodenu ... | 2004 | 15644620 |
| effect of breeder age and breeding season on egg production and incubation in farmed ostriches. | (1) this research was carried out to investigate changes in egg production and hatchability as influenced by age and breeding season of 10 trios (two females, one male) of ostrich (struthio camellus) during 1998 to 2002. (2) breeding season affected number of eggs laid per female per season, average egg weight, length of laying period and clutch sequence. (3) the number of eggs laid per female per season was 25 in the first breeding season and 57 by the fifth breeding season. the laying period l ... | 2004 | 15623218 |
| effects of dietary supplementation with polyunsaturated fatty acids and antioxidants on biochemical characteristics of boar semen. | the aim of this study was to investigate the effect of providing a supplement containing polyunsaturated fatty acids and antioxidants (prosperm) on the biochemical characteristics of boar semen. two sexually mature boars were fed a standard diet with prosperm (250 g daily) for a 24-week period. ejaculates collected prior to supplementation were used as the control. semen quality and biochemical parameters were analyzed. the dietary supplementation enhanced sperm characteristics, including the pe ... | 2004 | 15592586 |
| yolk sac utilization in ostrich (struthio camelus) chicks. | the mass of residual yolk sac expressed as a percentage of initial mass of the egg from which the chick hatched decreased sharply in the first 2 days post-hatching. a gradual reduction occurred between 3 and 10 days after which a sharp decline was noted between 11 and 13 days post-hatching. the highest number of chicks with unabsorbed yolk sac was noted on day 5 post-hatching followed by days 6 and 7. chick mortality followed the same pattern. the dynamics, causes and clinical consequences of yo ... | 2004 | 15580775 |
| prevalence of libyostrongylus douglassii in commercially reared ostriches in the highveld region of zimbabwe. | a total of 435 freshly dropped faecal samples were collected from 11 randomly selected ostrich farms during september and november 2002 to determine the prevalence of libyostrongylus douglassii (ostrich wireworm) in the highveld region of zimbabwe. samples, which consisted of 339 samples from breeder birds and 96 samples from pre-slaughter grower birds were screened for nematode eggs using the modified mcmaster technique before being individually cultured in an incubator at 28 degrees c. culture ... | 2004 | 15575991 |
| 2004 presidential address: the sheep, the ostrich, the ant, diabetes, and the tragedy of the common. | 2004 | 15562228 | |
| bacteriologic findings in ostrich (struthio camelus) eggs from farms with reproductive failures. | from january 2001 to december 2002, 543 ostrich eggs were submitted for bacteriologic investigation. the eggs were laid by 387 domesticated ostriches that suffered fertility disorders and that came from 44 farms located in different areas of northern and central italy. microbiologic investigations showed bacterial isolation in 105 (19.3%) of 543 eggs examined, with a high prevalence of enterobacteria from albumen and yolk. in only a few cases did bacterial isolation result from yolk or albumen a ... | 2004 | 15530000 |
| mechanical resistance of a new biomaterial, ostrich pericardium, and a new method of joining tissues combining suturing and a biological adhesive. | we studied the mechanical behavior in response to tensile stress of samples of ostrich pericardium bonded with a cyanoacrylate glue or sewn with a rectangular, overlapping suture that was subsequently sealed with the same bioadhesive. seventy-two trials were performed in three series of 24 samples each: series ag, glued with an overlap of 1 cm2; series asg, sewn with a rectangular, overlapping suture and sealed; and series ac, control samples that were left intact. the mean stress at rupture in ... | 2005 | 15490469 |
| identification of the major proteins of the organic matrix of emu (dromaius novaehollandiae) and rhea (rhea americana) eggshell calcified layer. | 1. the eggshell is a composite consisting of 95% calcite and an organic matrix. 2. while many proteins of the chicken eggshell matrix have already been identified, little is known about the matrix of other birds. 3. isolation of the emu and rhea eggshell matrix and analysis of its major constituents showed that the predominant components were c-type lectin-like proteins related to those of ostrich, chicken and goose. 4. serum albumin, vitelline membrane outer layer protein i (vmo-i) and the turp ... | 2004 | 15484722 |
| avian antimicrobial peptides: the defense role of beta-defensins. | avian antimicrobial peptides, classified as beta-defensins, have been identified from bloods of chicken, turkey, and ostrich; epithelial cells of chicken and turkey; and king penguin stomach contents. beta-defensins are a family of antimicrobial peptides characterized by six cysteine residues forming beta-defensin motifs that are also found in bovine, ovine, pig, and human. these peptides are active against a wide range of microorganisms including gram-positive and gram-negative bacteria, fungi, ... | 2004 | 15381059 |
| histochemical and morphometrical characterization and distribution of fibre types in four muscles of ostrich (struthio camelus). | a staining procedure used for simultaneously determining three different fibre types in single sections bovine, porcine or ovine skeletal muscle was modified for use with ostrich skeletal muscle. the muscle fibres of gastrocnemius pars externa, tibialis cranialis caput tibiale, tibialis cranialis caput femorale and fibularis longus tendo caudalis were studied. the histochemical results revealed the presence of three types of fibre only in the gastrocnemius pars externa muscle: fast-twitch glycol ... | 2004 | 15352876 |
| the processing and characterization of animal-derived bone to yield materials with biomedical applications: part 1: modifiable porous implants from bovine condyle cancellous bone and characterization of bone materials as a function of processing. | a study on the development of a process to form materials suitable for biomedical xenograft implants from bovine cancellous bone is presented. bone cubes cut from the condyle portion of bovine femurs sourced from abattoir waste were subjected to a defatting and subsequent deproteination procedure to produce shape-modifiable materials in which the biocompatible mineral calcium hydroxycarbonate apatite component was preserved in the original osseous architecture of the bovine bone. optimum defatti ... | 2000 | 15348008 |
| gait selection in the ostrich: mechanical and metabolic characteristics of walking and running with and without an aerial phase. | it has been argued that minimization of metabolic-energy costs is a primary determinant of gait selection in terrestrial animals. this view is based predominantly on data from humans and horses, which have been shown to choose the most economical gait (walking, running, galloping) for any given speed. it is not certain whether a minimization of metabolic costs is associated with the selection of other prevalent forms of terrestrial gaits, such as grounded running (a widespread gait in birds). us ... | 2004 | 15293864 |
| a granulomatous conjunctivitis associated with morexella phenylpyruvica in an ostrich (struthio camelus). | the aim of study was to evaluate a case of granulomatous conjunctivitis, clinically and pathologically, in the right eye of a 2-year-old, female ostrich. a mass measuring 5 cm x 3 cm x 4 cm was removed surgically from the eye of the ostrich. morexella phenylpyruvica was recovered from the mass. on histopathological examination, hyperplasia or squamous metaplasia in some area of conjunctival palpebra, and a granulomatous inflammation in the submucosa were observed. the lesion was described as a g ... | 2004 | 15276987 |
| four-legged ostrich (struthio camelus) chick. | 2004 | 15214526 | |
| traumatic oesophageal perforation in a male ostrich (struthio camelus australis). | 2004 | 15198319 | |
| reference serum protein and lipoprotein fractions of ostriches (struthio camelus) in turkey. | the aim of this study was to determine for reference purposes the values of serum albumin, alpha 1-globulin, alpha 2-globulin, beta-globulin, gamma-globulin, and alpha-lipoprotein (high density lipoprotein), pre-beta-lipoprotein (very low density lipoprotein) and beta-lipoprotein (low density lipoprotein) fractions of normal ostriches (struthio camelus) in turkey. five male and five female ostriches, 18 months old, were used. all the ostriches were fed on a diet that contained 15.14% crude prote ... | 2004 | 15185578 |
| entamoeba struthionis n.sp. (sarcomastigophora: endamoebidae) from ostriches (struthio camelus). | in the present work we identify the species of entamoeba from ostriches (struthio camelus). the complete sequence of the small subunit ribosomal rna gene from this organism has been compared with those published for other species of the genus and clear differences have been found. these results confirm previous data which showed differences on parasite morphology and class of host with the other entamoeba species. taking all these data together, it can be concluded that the organism from ostrich ... | 2004 | 15154597 |
| paraoxonase-1 inhibits oxidised ldl-induced mcp-1 production by endothelial cells. | the upregulation of endothelial cell mcp-1 production by ox-ldl is a major initiating event in atherogenesis. hdl and pon1 retard the oxidation of ldl and therefore may retard endothelial cell mcp-1 production. the endothelial cell line eahy926 was incubated with ox-ldl in the presence and absence of hdl and pon1 and the production of mcp-1 was measured by elisa. human hdl and pon1 significantly inhibited the in vitro oxidation of ldl and completely prevented the ox-ldl induced increase in mcp-1 ... | 2004 | 15144891 |
| the fine structure of the harderian gland in the ostrich (struthio camelus). | the harderian gland of the ostrich (struthio camelus) is a tubuloalveolar gland containing holocrine secreting epithelial cells. the gland epithelium is composed of two different cell types, which can be classified as type i and type ii. these cells contain dense secretory vesicles in their cytoplasm and they are connected laterally with desmosomes. at the basal site of these cells, myoepithelial cells are present. plasma cells are observed in the subepithelial region of the gland. in the interl ... | 2004 | 15144280 |
| resistance to tearing of calf and ostrich pericardium: influence of the type of suture material and the direction of the suture line. | the tearing of the valve leaflet of a cardiac bioprosthesis can cause early failure of this device, which is employed to replace a diseased native valve. this report involves the study of the behavior of 312 tissue samples (152 of calf pericardium and 160 of ostrich pericardium) treated with glutaraldehyde and subsequently subjected to tear testing. the samples were cut in the two principal directions: longitudinally, or root to apex, and transversely. they included a series of control samples t ... | 2004 | 15116401 |
| pharmacokinetics of enrofloxacin after single intravenous and intramuscular administration in young domestic ostrich (struthio camelus). | 2004 | 15096111 | |
| extinct ostrich eggshell (aves: struthionidae) from the pliocene chiwondo beds, malawi: implications for the potential biostratigraphic correlation of african neogene deposits. | 2004 | 15066381 | |
| incubation temperature for ostrich (struthio camelus) eggs. | the impact of incubation temperature on egg weight loss, embryonic mortality, incubation period, hatchability, and chick weight in 394 ostrich (struthio camelus) eggs was studied. eggs were obtained from 3 farms in texas. three incubation temperatures (36.5, 37.0, or 37.5 degrees c) with relative humidity ranging from 20 to 30% were used. results showed that incubation of fertile eggs at 36.5 degrees c increased hatchability and incubation period in comparison with other treatments. the incidenc ... | 2004 | 15049504 |
| the use of comet assay to assess dna integrity of boar spermatozoa following liquid preservation at 5 degrees c and 16 degrees c. | the comet assay, under neutral conditions, allows the assessment of dna integrity influenced by sperm ageing, which is manifested in dna double-strand breaks. here, we attempted to use a modified neutral comet assay test (single-cell gel electrophoresis), to our knowledge for the first time, to assess dna integrity of boar spermatozoa during liquid storage for 96 h at 5 degrees c and 16 degrees c. in this comet assay protocol we used 2% beta-mercaptoethanol prior to the lysis procedure, to aid i ... | 2004 | 15046401 |
| aspergillus fumigatus infection in an ostrich (struthio camelus). | an 11-month-old female ostrich (struthio camelus) had become gradually emaciated over a 2-week period and subsequently died. necropsy revealed white to green mold growth on the walls of caseous thickened air sac membranes and multiple white necrotic foci in the lungs and liver. histologically, the multiple exudative, necrotic and granulomatous lesions were compatible with mycotic infection in the air sacs and lungs, and hyphae positively reacted with a monoclonal antibody (mab-wf-af-1) to asperg ... | 2004 | 15031551 |
| severe ocular trauma caused by an ostrich. | 2004 | 15031193 | |
| fine structure of the retinal pigment epithelium, bruch's membrane and choriocapillaris in the ostrich (struthio camelus). | the fine structure of the retinal pigment epithelium (rpe), bruch's membrane and choriocapillaris in the ostrich (struthio camelus) was investigated by using light microscopy and transmission electron microscopy. in this species, the rpe consisted of a single layer of low columnar cells. the epithelial cells were joined laterally by two type junctions, zonulae occludentes and zonulae adherentes located in the midregion of the cells. these cells displayed numerous deep basal infoldings and thick ... | 2004 | 15027961 |
| anatomical description of the muscles of the pelvic limb in the ostrich (struthio camelus). | dissections of 12 formalin-fixed ostriches were performed to give anatomical descriptions of the muscles and tendons of the pelvic, femoral, tibiotarsal, tarsometatarsal and digital regions. in the pelvic limb of the ostrich, 36 muscles can be determined. the ostrich lacks those muscles to the first and second toes (with exception of the m. flexor hallucis longus), which can be found in birds with four toes. the mm. iliotrochantericus medius, plantaris, extensor proprius digiti iv and adductor d ... | 2004 | 15027951 |
| effects of periodate and chondroitin 4-sulfate on proteoglycan stabilization of ostrich pericardium. inhibition of calcification in subcutaneous implants in rats. | chemical modification of biological materials used in the manufacture of cardiac valves tends to reduce the relatively high degree of biodegradation and calcification of the implanted bioprostheses. the most widely used treatment to reduce biodegradability of the valves is glutaraldehyde fixation. however, this treatment is potentially toxic and induces tissue calcification. in order to minimize these undesirable effects, we have analyzed the effect of a pre-fixation of endogenous proteoglycans ... | 2004 | 15020108 |
| [transforming the sintered ostrich cancellous bone to multiphasic calcium phosphate ceramic]. | to transform the sintered ostrich cancellous bone(ostrich true bone ceramic, otbc) to multiphasic calcium phosphate ceramic and study its components and characterization. | 2003 | 14966641 |
| l-o-caffeoylhomoserine from matteuccia struthiopteris. | a caffeic acid derivative was isolated from matteuccia struthiopteris (ostrich fern) as a major radical scavenger. the compound consisted of caffeic acid and l-homoserine. nmr and ms analysis revealed the structure as l-o-caffeoylhomoserine. | 2004 | 14759535 |
| the primary structure of a novel goose-type lysozyme from rhea egg white. | g-type lysozyme is a hydrolytic enzyme sharing a similar tertiary structure with plant chitinase. to discover the relation of function and structure, we analyzed the primary structure of new g-type lysozyme. the complete 185 amino acid residues of lysozyme from rhea egg white were sequenced using the peptides hydrolyzed by trypsin, v8 protease, and cyanogen bromide. rhea lysozyme had sequence similarity to ostrich, cassowary, goose, and black swan, with 93%, 90%, 83%, and 82%, respectively. the ... | 2004 | 14745179 |
| ostrich (struthio camelus) eggshell matrix contains two different c-type lectin-like proteins. isolation, amino acid sequence, and posttranslational modifications. | in contrast to chicken and goose, the ostrich calcified eggshell layer matrix contained two different c-type lectin-like proteins as major components. these proteins, named struthiocalcin-1 (sca-1) and struthiocalcin-2 (sca-2), were isolated and their amino acid sequence was determined. sca-1 clearly was the ortholog of goose eggshell ansocalcin. its amino acid sequence had the same length as that of ansocalcin (132 aa) and showed 65% sequence identity with the goose eggshell protein compared to ... | 2004 | 14726203 |
| immunohistochemical localization of the progesterone and oestrogen receptors in the shell gland of sexually immature ostriches (struthio camelus) with active or inactive ovaries. | the immunohistochemical localization of progesterone and oestrogen receptors was studied in the shell gland of the immature ostrich (struthio camelus) during periods of ovarian activity and inactivity. in birds with active ovaries moderate to strong immunostaining for the progesterone receptor was observed in the surface epithelium and tubular glands. in contrast faint progesterone receptor immunostaining was observed in the surface epithelium of the shell gland in ostriches with inactive ovarie ... | 2004 | 14659731 |
| granulomatous conjunctivitis in an ostrich. | ostriches lack meibom glands, but have small lacrimal glands ventral to the lateral canthus, with ductules that open into the inside of the lower eyelid. chalazion is a chronic granulomatous inflammation of the meibom glands that may develop from blockage of the ductules into the conjunctiva. a 2-year-old female ostrich presented with chronic granulomatous conjunctivitis, with clinical and histopathologic findings similar to chalazion of other species. the granulomatous dacryoadenitic mass was e ... | 2003 | 14641833 |
| sperm supply and egg fertilization in the ostrich (struthio camelus). | we used egg break-out and spermatozoa trapped in the perivitelline layer of eggs to test the hypothesis that sperm supply and egg fertilization rate are high in the ostrich. egg fertilization status was determined at break-out by the appearance of the germinal disc (gd) and then the perivitelline layer overlying the gd region was collected to count sperm (spermopvl) under fluorescence following staining with 4',6'-diamidino-2-phenyindole (dapi). the study was carried out on commercial ostrich fa ... | 2003 | 14629663 |
| effects of moisture content and drying temperature on the physicochemical properties of ostrich jerky. | the objective of this study was to investigate the influence of temperature (50, 60, and 70 degrees c) and moisture content (18, 21, and 24%) on the quality ofjerky products from ostrich meat. the jerky products were evaluated by physicochemical and sensory methods. the tensile strength of the samples prepared to 24% w.b. moisture content at 50 degrees c was lowest (p < 0.05; 124 n) while those prepared under other conditions were in the range of 208-268 n (p > 0.05). the water activity of the j ... | 2003 | 14609089 |
| [a case of trichinellosis with spontaneous remission]. | we experienced a case of trichinellosis that had traveled in kenya. the initial symptoms of the patient were myalgia and fever which started 2 weeks after she came back from kenya, and blood examination showed marked eosinophilia (14,300/mm3) and elevated creatinine kinase (826iu/l). when we made serological diagnosis of trichinellosis 3 weeks after onset, symptoms started to resolve spontaneously and we observed the patient without any medication. as of 2 months after onset, symptoms and abnorm ... | 2003 | 14608917 |
| isolation and characterization of 70 novel microsatellite markers from ostrich (struthio camelus) genome. | microsatellite markers are widely used in linkage mapping, parentage testing, population genetic studies, and molecular evolution studies in many agricultural species, while only a limited number of ostrich (struthio camelus) microsatellites have been isolated. thus, we constructed a random small-insert genomic library and a microsatellite-enriched library containing ca repeats. fourteen clones containing ca repeats were isolated from 3462 clones in the non-enriched library by radioactive screen ... | 2003 | 14608400 |
| radiographic gastrointestinal contrast study in the ostrich (struthio camelus). | ten gastrointestinal contrast studies were performed with barium on seven clinically healthy ostriches. concentrations of 25-100% w/vol liquid barium sulfate at 7 and 10 ml/kg were administered by stomach tube after withholding food for 16 h. a 6-frame technique for left-to-right lateral views in standing and a 3-frame technique for the dorsoventral views in sternally recumbent adult ostriches were used for survey and contrast radiographs. objectives were to describe the appearance of the normal ... | 2003 | 14599167 |
| distribution of spermatozoa in the outer perivitelline layer from above the germinal disc of emu and ostrich eggs. | in the present study, we determined the distribution of spermatozoa in the perivitelline layer above the germinal disc (gd) of emu and ostrich eggs that had been laid at random intervals after mating. eggs were opened, the perivitelline layer overlying the gd region was collected and sperm were visualized with 4',6'-diamidino-2-phenylindole under a fluorescence microscope. to map the distribution of sperm, the gd was divided into six areas (a-f), with a being the centre of the gd and f the area ... | 2003 | 14588183 |
| method for collecting semen from the ostrich (struthio camelus) and some of its quantitative and qualitative characteristics. | 1. four methods of semen collecting that involved interruption of mating in two breeding ostrich pairs were tested: an artificial vagina was tested without promising results; the funnel method, in which a funnel was placed under the phallus of the tested male immediately after mating allowing semen drips to be collected; the vacuum method, using a turkey semen collector, inserted into the seminal canal; and the tube method, conducted by placing a test tube inside the seminal canal, allowing seme ... | 2003 | 14584851 |
| cloacal prolapse in ostrich chicks with histomoniosis. | 2003 | 14582734 | |
| pathogenicity of a ratite-origin influenza a h5 virus in ostriches (struthio camelus). | ostriches were inoculated with a highly pathogenic avian influenza (hpai) virus of ratite origin, a/emu/texas/39924/93 (h5n2) done clb. the aim of this study was to evaluate the pathogenicity of this isolate for ostriches and to assess the ability of routine virologic and serologic tests to detect infection. avian influenza virus (aiv) was isolated from tracheal swabs from 2 to 12 days postinfection and from cloacal swabs from 3 to 10 days postinfection. aiv was also isolated from a wide range o ... | 2003 | 14575143 |
| pathogenesis of h7 influenza a viruses isolated from ostriches in the homologous host infected experimentally. | infections of ostriches with avian influenza a viruses are generally associated with clinical disease, but the occasional high mortality in young birds does not appear to be related directly to virus pathotype. in this study we investigated the pathogenesis of two h7 viruses for 11-wk-old ostriches inoculated intranasally, and clinical symptoms, virus excretion, and immune response were studied. one of the viruses (a/ostrich/italy/1038/00) was highly pathogenic for chickens, whereas the other (a ... | 2003 | 14575132 |
| clinical, gross, and microscopic findings in different avian species naturally infected during the h7n1 low- and high-pathogenicity avian influenza epidemics in italy during 1999 and 2000. | from the end of march to the beginning of december 1999, an epidemic of low-pathogenicity avian influenza (lpai), caused by a h7n1 type a influenza virus, affected the intensively reared poultry population of northeastern italy. a total of 199 flocks were diagnosed with influenza infection. the highest number affected flocks were in meat turkeys (164), with only a limited number of turkey breeder, chicken (breeders, broilers, and table egg layers), and guinea fowl flocks infected. following the ... | 2003 | 14575075 |
| characterization of serum 'glycosaminoglycan (gag) chains' and 'native proteoglycan' fractions in the ostrich. | 2003 | 14535476 | |
| the morphological features of the rete testis of the ostrich (struthio camelus). | the epithelium of the rete testis of the ostrich is simple cuboidal to columnar in nature, unlike the more flattened epithelium encountered in other non-passerine birds. a solitary cilium projects into the ductal lumen. a unique lateral cell membrane modification, similar, in some respects, to a hemi-desmosome, occurs frequently along the length of this membrane. the lateral cell membrane is complexly folded, and the cell contains an abundance of intermediate filaments, particularly in the vicin ... | 2003 | 14530972 |
| arteriosclerosis in the ostrich, rhea, and emu. | 1965 | 14318834 | |
| spore germination and development of the young gametophyte of the ostrich fern (matteuccia struthiopteris). | 1965 | 14265546 | |
| arteriosclerosis in the ostrich, rhea, and emu: naturally occurring lesions of the aortas and coronary arteries. | 1965 | 14254909 | |
| the eagle and the ostrich. | 1961 | 13754771 | |
| operation ostrich: is mass evacuation strictly for the birds. | 1956 | 13358629 | |
| an epithelial ependymoma in an ostrich. | 1956 | 13286177 | |
| animal fats. 3. the component acids of ostrich fat. | 1954 | 13181860 | |
| young's modulus varies with differential orientation of keratin in feathers. | feathers are composed of a structure that, whilst being very light, is able to withstand the large aerodynamic forces exerted upon them during flight. to explore the contribution of molecular orientation to feather keratin mechanical properties, we have examined the nanoscopic organisation of the keratin molecules by x-ray diffraction techniques and have confirmed a link between this and the young's modulus of the feather rachis. our results indicate that along the rachis length, from calamus to ... | 2003 | 12972348 |
| physical and chemical quality of ostrich eggs during the laying season. | 1. fifteen ostrich females were monitored for a full breeding season. at 30, 70, 110, 150 and 210 d from the beginning of laying, one egg per female was taken to the laboratory to assess its physical and nutritive characteristics. 2. the average length was 15.4 cm, while the width was 12.9 cm. average shell thickness ranged from 2.20 mm at the equator to 2.24 mm at the small pole. the three principal components of the egg (albumen, yolk and shell) amounted to 57.1, 23.3 and 19.6%, respectively. ... | 2003 | 12964622 |
| effects of some egg characteristics on the mass loss and hatchability of ostrich (struthio camelus) eggs. | 1. this study was conducted to examine some egg characteristics and determine the effects of eggshell thickness and eggshell porosity on water loss and hatchability of eggs in ostriches. 2. shell thickness did not correlate significantly with hatchability. however, eggs of low shell thickness lost more mass (13.03%) than those with intermediate (11.22%) and high (10.36%) shell thickness. mass loss during incubation was higher in hatched (11.98%) than unhatched eggs (11.09%). shell thickness was ... | 2003 | 12964621 |
| outbreak of aspergillosis in a flock of adult ostriches (struthio camelus). | 2003 | 12918831 | |
| severe ocular and periocular injuries caused by an ostrich. | an adult was attacked by an ostrich and suffered severe ocular and periocular injury, with permanent loss of vision. fragments of ostrich beak were removed from the right periorbital laceration. unprovoked severe bird injuries are rare. to the best of our knowledge, ocular injury caused by an ostrich has never been reported in the ophthalmic literature. | 2003 | 12918566 |
| development of the digestive tract in the ostrich (struthio camelus). | a study was conducted to investigate changes in the development of the gastrointestinal tract (git) in relation to body growth of growing ostriches. there was an 11-fold increase (p < 0.001) in body weight between 3 and 72 days of age. the relative (to body weight) weight of the proventriculus/gizzard, caeca and colon also increased (p < 0.001) with age. the relative weight of the small intestine peaked at 41 days of age and then tended to decline (p < 0.05) subsequently. the relative weight of ... | 2003 | 12903866 |
| evaluation of the potential beneficial effects of ostrich eggshell combined with eggshell membranes in healing of cranial defects in rabbits. | potential beneficial effects of outer and inner ostrich eggshell membranes alone and in combination with the shell powder on bone regeneration in cranial defects of 18 rabbits were investigated using radiological, clinical and histological methods. three 6 mm wide, half-thickness defects were made in the calvarial bones of each rabbit. one defect remained empty as a control; prepared eggshell membranes were extended across the other two defects; and prepared eggshell powder was inserted inside t ... | 2003 | 12870376 |
| detection of circovirus with a polymerase chain reaction in the ostrich (struthio camelus) on a farm in the netherlands. | this study describes for the first time the presence of circoviruses in ostrich tissue including embryos. a polymerase chain reaction (pcr) was used for the detection of the virus in liver samples. the use of a polymerase for low copy detection significantly increased the sensitivity of the test as well as a southern blot. viral dna could be detected in chicks and eggs that did not hatch. for localisation of the virus in the liver in situ hybridisation was performed on a selection of positive li ... | 2003 | 12860074 |
| a note on endoparasites of wild ostriches (struthio camelus) in the mokolodi nature reserve, gaborone, botswana. | a study was undertaken to investigate the prevalence of endoparasites of wild ostriches at mokolodi nature reserve, gaborone, over a 7-month period. large numbers of strongyle eggs were recovered from faecal material in april and september and a decline in the strongyle egg counts was evident during june and july. noteworthy was the absence of helminth eggs in faecal samples collected from chicks and coccidia oocysts from any of the ostriches. | 2003 | 12836743 |
| ultrasonography of the female reproductive organs in farmed ostriches (struthio camelus spp.). | the main objective of this study was to determine whether transcutaneous ultrasonography could be used as a diagnostic tool to monitor the reproductive organs of female breeding ostriches. an additional aim was to investigate whether the use of this technique could facilitate prediction of the start or end of the egg production season. a technique for on-farm ultrasound scanning is described and examples of ultrasonographic images of different ovarian structures, developing ova and eggs within t ... | 2003 | 12832012 |
| insight into the mechanism of short chain fatty acid absorption in the ostrich (struthio camelus) proximal colon. | 1. occurrence of short chain fatty acids (scfa) in anionic form limits their diffusion across the absorptive membrane. the present study sought to establish the mechanism of scfa absorption in the ostrich. 2. epithelial tissues were taken from the sacculated part of the colon and mounted in ussing chambers in a bathing solution. the tissues were voltage-clamped and allowed to equilibrate to obtain a baseline short circuit current (isc). 3. propionate (23 mm) on the mucosal side increased the isc ... | 2003 | 12828218 |
| a study on the morphological structure of syrinx in ostriches (struthio camelus). | the aim of this study was to investigate the topographical, anatomical and histological characteristics of syrinx in five ostriches. it was observed that the syrinx in the ostrich was tracheobronchial type and was composed of three different cartilage groups, namely tympanum, cartilagines (cartt.) tracheosyringeales and cartt. bronchosyringeales. tympanum and cartt. tracheosyringeales were formed from three and four cartilage rings, respectively, while cartt. bronchosyringeales was formed from t ... | 2003 | 12823107 |
| does the ostrich (struthio camelus) coprodeum have the electrophysiological properties and microstructure of other birds? | the ostrich is unique among birds in having complete separation of urine and faeces. the coprodeal epithelium is thus during dehydration exposed to a fluid 500 mosm hyperosmotic to plasma. we have investigated whether the coprodeum is adapted like a mammalian bladder. the coprodeal epithelium was studied by electrophysiology in the ussing chamber, and the anatomy by light microscopy and scanning electron microscopy. electrophysiology: the short-circuit current (scc) and open circuit electrical p ... | 2003 | 12814783 |
| immunohistochemical localization of chromogranin a in gonadotrophs and somatotrophs of the turkey and chicken pituitary. | in the course of producing monoclonal antibodies to turkey prolactin, three monoclonal antibodies to turkey chromogranin a (cga) were also produced, apparently arising from minor contamination of the turkey prolactin immunogen with peptide fragments of cga. the identity of the antigen recognized by these antibodies was established by tandem mass spectrometry de novo sequencing of seven tryptic peptides from a turkey pituitary protein purified by immunoaffinity chromatography. these peptides show ... | 2003 | 12812778 |
| mycobacterium avium infection in an ostrich (struthio camelus). | acid-fast organisms were identified by histopathology of granulomatous lesions in an ostrich (struthio camelus). the organisms were grown in herrold's egg media with and without mycobactin and identified as mycobacterium avium. an agar gel immunodiffusion (agid) test for mycobacterium avium paratuberculosis was performed for detection of antibody for m. avium in this infected ostrich and seven other ostriches that were in contact. the results of the agid were consistent with the pathologic diagn ... | 2001 | 12790402 |
| intravenous pharmacokinetics of penicillin g and antipyrine in ostriches (struthio camelus) and emus (dromaius novaehollandiae). | penicillin g and antipyrine, which served as model drugs to assess the relative capacities of renal and hepatic elimination pathways, respectively, were each administered intravenously to six ostriches (struthio camelus) and to six emus (dromaius novaehollandiae). drug concentrations in blood samples collected over a period of 12 hr after administration were assayed, and elimination half-life, mean residence time, clearance, and steady-state volume of distribution were calculated. mean values fo ... | 2001 | 12790398 |
| expression of a synthetic gene coding for ostrich egg-white lysozyme in pichia pastoris and its enzymatic activity. | to investigate the structure-function relationships of goose-type lysozyme, a gene coding for ostrich egg-white lysozyme (oel) was designed based on the published amino acid sequence and constructed by assembling 32 chemically synthesized oligonucleotides. to obtain the recombinant oel (roel), the synthetic gene was fused to the alpha-factor signal peptide in the expression vector ppic9k and expressed in the methylotrophic yeast pichia pastoris. the secreted protein from the transformed yeast wa ... | 2003 | 12761207 |
| microbial quality of ostrich carcasses produced at an export-approved south african abattoir. | the aim of this study was to evaluate the microbial quality of ostrich carcasses produced in a south african export-approved ostrich abattoir. ninety surface samples were collected from 30 ostrich carcasses at three processing points in the abattoir: after skinning, after evisceration, and after chilling. samples were evaluated for aerobic plate counts, for levels of pseudomonas spp., enterobacteriaceae, and staphylococcus aureus, and for the presence of escherichia coli. surface counts (means + ... | 2003 | 12747700 |
| hepatitis associated with clostridium difficile in an ostrich chick. | a live 19-day-old male ostrich chick was euthanized and necropsied. it was one of 12 chicks in a group in which 8 had died with history of anorexia, diarrhoea and weight loss. the birds had been treated with amikacin, piperacillin and enrofloxacin. necropsy of the ostrich revealed dehydration, mild ascites and serous atrophy of fat around the heart. the liver had numerous yellow tan foci on the capsular surface as well as on the cut surface. caecal contents were watery. microscopic examination o ... | 2003 | 12745381 |
| possible modes of allergen-specific sensitization and boosting in an atopic child. | several studies document that allergen-specific ige levels are boosted by allergen contact via the respiratory tract in allergic patients. only few data are available on whether other routes of allergen contact have an influence on systemic ige responses. we report the case of a boy who developed egg allergy after heavy consumption of eggs by the mother during pregnancy and breast feeding. in contrast to other children who outgrow egg allergy during the first years of life, the boy experienced f ... | 2003 | 12740528 |
| on the sensitive innervation of the ostrich's foot pads. | the sensitive and autonomic innervation of foot pads in the ostrich was studied employing an usual histological technique as hematoxylin-eosin or different gold chloride impregnations. the autonomic innervation is represented by isolated or grouped ganglion cells located along the course of nerve bundles. the sensitive somatic innervation is composed by free and capsulated nerve endings usually distributed in the thickness of the connective arrangement of the foot pads, in the most superficial p ... | 2003 | 12737513 |
| disulfide pairings and secondary structure of porcine beta-microseminoprotein. | a sperm motility inhibitor isolated from porcine seminal plasma is identical to porcine beta-microseminoprotein (msp). circular dichroism (cd) and nuclear magnetic resonance (nmr) data showed that the native and recombinant porcine msps exhibit very similar structure. the five disulfide pairings on porcine msp were unambiguously assigned based on nmr data and further confirmed using structural calculations. surprisingly, our derived pairings differ from those recently reported for ostrich msp ba ... | 2003 | 12706823 |
| effects of hemolysis on serum chemistry analytes in ratites. | since hemolysis has been a common problem in submitted ratite serum samples, a study was performed to determine interference by hemolysates. nine chemistry analytes including glucose, total protein, albumin, creatine kinase (ck), gamma-glutamyl transferase (ggt), aspartate aminotransferase (as7), calcium (ca), phosphorus, and uric acid were evaluated on a wet reagent analyzer (ciba corning express 550) and on a dry slide reagent analyzer (vettest 8008). in emus, increasing hemoglobin concentrati ... | 1997 | 12658578 |
| insight into residues critical for antithrombin function from analysis of an expanded database of sequences that includes frog, turtle, and ostrich antithrombins. | complete sequences were determined for frog, turtle, and ostrich antithrombins. protein sequence comparisons with the other 10 known antithrombin sequences and with sequences of other serpins have provided striking evidence for the conservation of the heparin activation mechanism and new insight into those residues important for heparin binding, for heparin activation, and for reactive center loop function, as well as an indication of which glycosylation sites might be needed for function. impor ... | 2002 | 12645893 |
| immunohistochemical localization of s100-like protein in non-mammalian kidney. | the immunolocalization of s100-like protein was investigated in the kidney of saltwater fishes (dicentrarchus labrax; coris julis; serranus cabrilla; scorpaena porcus), amphibia (rana aesculenta), reptiles (lacerta viridis), and aves (gallus domesticus; strutio camelus). s100-like immunoreactivity was detected in the juxtaglomerular cells of all saltwater fishes studied. no immunoreactivity was observed in other tracts of the nephron or in the interstitial tissue. in frog kidney, s100-like immun ... | 2003 | 12645012 |