| sperm subpopulations in boar (sus scrofa) and gazelle (gazella dama mhorr) semen as revealed by pattern analysis of computer-assisted motility assessments. | the aim of this study was to test the suitability of "pattern analysis" for the exploration of data provided by computer-assisted semen analysis methods. data sets derived from the examination of boar sperm responses to bicarbonate and caffeine (measurements on 3208 spermatozoa) and from studies of semen cryopreservation in mohor gazelles (7278 spermatozoa) were reanalyzed. a nonhierarchical classification method was used to generate initial subgroups of spermatozoa (9 for boar, 13 for gazelle). ... | 1999 | 9858483 |
| abomasal and small intestinal nematodes from captive gazelles in spain. | the abomasal and small intestinal helminth fauna of three species of captive gazelles (gazella dama mhorr, g. cuvieri and g. dorcas neglecta) kept in captivity in almería (southeast spain) have been studied, and the following species were identified: nematodirus spathiger, n. filicollis, n. helvetianus, camelostrongylus mentulatus, trichostrongylus vitrinus, t. probolurus, t. colubriformis, ostertagia ostertagi, o. harrisi, teladorsagia (ostertagia) circumcincta, and t. (ostertagia) davtiani. ca ... | 2001 | 11818055 |
| output of gastrointestinal nematode eggs in the feces of captive gazelles (gazella dama mhorr, gazella cuvieri and gazella dorcas neglecta) in a semiarid region of southeastern spain. | feces from 62 captive african gazelles, including mhorr gazelles (gazella dama mhorr), cuvier's gazelles (gazella cuvieri), and dorcas gazelles (gazella dorcas neglecta), were examined over the course of a year to quantitate nematode egg excretion patterns. strongyloides sp. eggs appeared only in g. dama during the rainy season. trichostrongylidae egg excretion showed a marked seasonal variation, with very low levels during the dry and hot period, a finding that is probably attributable to hypob ... | 2006 | 17319122 |
| serum gamma-glutamyltransferase as a prognostic indicator of neonatal viability in nondomestic ruminants. | rapid assessment of immune status in neonatal ruminants of endangered species facilitates early intervention in cases of inadequate passive transfer of maternal immunoglobulins. serum gamma-glutamyltransferase (ggt) was used to evaluate suspected passive transfer status in 25 north indian muntjac (muntiacus muntjak vaginalis), 45 cretan goats (capra algagrus cretica), 20 white-lipped deer (cervus albirostris), 25 mhorr gazelles (gazella dama mhorr), and 31 soemmerring's gazelles (gazella soemmer ... | 2005 | 17323564 |
| transposition of the biceps tendon to reduce lateral scapulohumeral luxation in three species of nondomestic ruminant. | open reduction of lateral luxation of the scapulohumeral joint was performed in a mhorr gazelle (gazella dama mhorr), a southern pudu (pudu puda), and an alpine ibex (capra ibex ibex) by transposition of the biceps brachii tendon lateral to the greater tubercle of the humerus. the ibex had a very large greater tubercle that required a second osteotomy to allow successful lateral transfer of the tendon. although all three animals were non-weight bearing in the first 2-3 wk after surgery, ambulati ... | 2005 | 17323571 |
| coxiella burnetii detected in three species of endangered north african gazelles that recently aborted. | coxiella (c.) burnetii is the etiological agent of the zoonotic disease known a q fever. this agent can infect multiple hosts although its pathogenic potential in wild ruminants has been poorly studied. the polymerase chain reaction and the serological test detected the presence of c. burnetii in a population of north african gazelles (n = 355), comprising dorcas gazelle (gazella dorcas neglecta), dama gazelle (nanger dama mhorr) and cuvier's gazelle (gazella cuvieri) which, some of them, they r ... | 2017 | 27771116 |
| high levels of dna fragmentation in spermatozoa are associated with inbreeding and poor sperm quality in endangered ungulates. | inbreeding is known to cause deleterious effects upon reproduction and survival, but its effects upon sperm dna integrity have not been examined. in the present study, we analyzed this relationship among three endangered ungulates: gazella cuvieri, gazella dama mhorr, and gazella dorcas neglecta. in addition, we examined whether levels of sperm dna fragmentation are associated with semen quality. the magnitude of sperm dna damage in the two species with high levels of inbreeding (g. cuvieri and ... | 2010 | 20505170 |
| inbreeding and reproduction in endangered ungulates: preservation of genetic variation through the organization of genetic resource banks. | there is a constant increase in the number of species suffering marked reductions in population size. this reduction in size and the lack of genetic flow may lead to a decrease in genetic variability and to matings between close relatives (i.e. inbreeding) with an ensuing reduction in fitness. it is thus important to understand the mechanism underlying the deleterious effects of inbreeding and to develop reproductive biotechnologies that will allow the reduction of inbreeding depression by facil ... | 2006 | 16984472 |
| heterozygosity-fitness correlations and inbreeding depression in two critically endangered mammals. | the relation among inbreeding, heterozygosity, and fitness has been studied primarily among outbred populations, and little is known about these phenomena in endangered populations. most researchers conclude that the relation between coefficient of inbreeding estimated from pedigrees and fitness traits (inbreeding-fitness correlations) better reflects inbreeding depression than the relation between marker heterozygosity and fitness traits (heterozygosity-fitness correlations). however, it has be ... | 2012 | 22897325 |