| effects of breed group by location interaction on crossbred cattle in nebraska and florida. | data on 2,744 calves produced in clay center, nebraska and brooksville, florida were used to evaluate the importance of genotype x location interactions on the reproductive and maternal performance of eight breed groups of f1 crossbred cows. a total of 648 f1 crossbred cows included bos taurus x bos taurus (bt x bt) crosses: hereford x angus reciprocal crossbreds (ha and ah), pinzgauer x angus (pa), pinzgauer x hereford (ph); and bos indicus x bos taurus (bi x bt) crosses: brahman x angus (ba), ... | 1991 | 2005003 |
| isolation of an exotic serotype of bluetongue virus from imported cattle in quarantine. | in 1980, 60 zebu cattle from brazil were admitted into quarantine in florida for 150 days. during the 30 days between their last test in brazil and their first test in florida, four animals developed antibody to bluetongue virus detectable by agar gel immunodiffusion test. within 62 days after arrival in florida, three more seroconverted and one more was positive by the 86th day. virus neutralizing titers of serums from the first four cattle were highest against bluetongue virus serotype 4 and 2 ... | 1982 | 6284326 |
| short communication: seasonal effects on development of bovine embryos produced by in vitro fertilization in a hot environment. | the objective of this study was to determine if season affected the production of in vitro-derived bovine embryos from oocytes of cattle in a subtropical environment. ovaries (approximately 75% beef cattle, including many with bos indicus breeding) were collected from an abattoir. oocytes were obtained and subjected to in vitro maturation and fertilization. embryos were then cultured in cr1aa medium. cleavage rate averaged 72.2+/-9.7% and was not different between months of collection. in additi ... | 2000 | 10714865 |
| influence of cow breed type, age and previous lactation status on cow height, calf growth, and patterns of body weight, condition, and blood metabolites for cows grazing bahiagrass pastures. | this study was initiated to evaluate performance and patterns of cow traits and blood metabolites of 3 breeds of cows grazing bahiagrass (paspalum notatum flügge) pastures in central florida. purebred cows (n = 411) of either angus (bos taurus), brahman (bos indicus), or romosinuano (bos taurus) breeding, rotationally grazed (moved twice weekly) bahiagrass pastures year-round, and received bahiagrass hay supplemented with molasses and soyhulls or legume hay supplemented with unfortified molasses ... | 2017 | 28177395 |