Results 161 to 170 of about 7,218 (207)

Effect of early luteolysis in progesterone-based timed AI protocols in Bos indicus, Bos indicus×Bos taurus, and Bos taurus heifers [PDF]

Theriogenology, 2008
The objective of this study was to evaluate the effects of treatment with an intravaginal progesterone-releasing device (CIDR) and estradiol benzoate (EB) on follicular dynamics in Bos indicus (n=23), Bos taurus (n=25), and cross-bred (n=23) heifers. To assess the influence of reduced serum progesterone concentrations during 8 days of treatment with a ...
J B P, Carvalho, N A T, Carvalho, E L, Reis, M, Nichi, A H, Souza, P S, Baruselli   +5 more
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179 COMPARISON OF OOCYTE AND EMBRYO PRODUCTION AMONG BOS TAURUS, BOS INDICUS, AND INDICUS-TAURUS DONOR COWS [PDF]

Reproduction, Fertility and Development, 2009
In recent years, Brazil has become the leading country in the world for the number of embryos produced in vitro (Thibier M 2009 IETS Embryo Transfer Newsletter 22, 12-19). This is partly due to the large numbers of Bos indicus animals in Brazil, making up about 80% of the total cattle.
J. H. F. Pontes, K. C. F. Silva, A. C. Basso, C. R. Ferreira, G. M. G. Santos, B. V. Sanches, J. P. F. Porcionato, P. H. S. Vieira, F. A. M. Sterza, M. M. Seneda   +9 more
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Synthesis of primary Bos taurus - Bos indicus chimaeric calves [PDF]

Animal Reproduction Science, 1983
Attempts to produce primary Bos taurus-Bos indicus chimaeric calves by aggregation and co-culture of zona-free morulae were unsuccessful. Consequently, the blastocyst injection technique was developed for ruminant embryos. Between one and six inner cell mass cells were injected into 24 blastocysts which were transferred to 14 cows.
Summers, P. M., Shelton, J. N., Bell, K.
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Influence of the breed of bull (Bos taurus indicus vs. Bos taurus taurus) and the breed of cow (Bos taurus indicus, Bos taurus taurus and crossbred) on the resistance of bovine embryos to heat

Animal Reproduction Science, 2009
In vitro studies have shown that Bos taurus indicus (B. t. indicus) embryos submitted to heat shock at early stages of development are better able to survive as compared to Bos taurus taurus embryos. Embryo genotype influences resistance to heat shock thus leading to the question as to whether embryos sired by thermo-tolerant breeds exhibit the same ...
Eberhardt, Bruno G., Satrapa, Rafael A., Capinzaiki, Claudia R. L., Trinca, Luzia A., Barros, Ciro M.   +4 more
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38 VITRIFICATION OF BOS TAURUS INDICUS AND BOS TAURUS INDICUS × BOS TAURUS TAURUS EMBRYOS PRODUCED IN THE PRESENCE OR ABSENCE OF FETAL CALF SERUM

Reproduction, Fertility and Development, 2011
In vitro-produced Bos taurus indicus (zebu) and Bos taurus indicus × Bos taurus taurus (cross-bred) embryos behave differently when vitrified. The present experiment aimed to examine the effect of vitrification on embryos produced in the presence or absence of FCS.
D. M. Paschoal, M. J. Sudano, T. S. Rascado, L. C. O. Magalhães, L. F. Crocomo, J. F. Lima-Neto, M. D. Guastali, R. R. D. Maziero, A. Martins Jr., F. C. Landim-Alvarenga   +9 more
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Differences of skin morphology in Bos indicus, Bos taurus, and their crossbreds

International Journal of Biometeorology, 2013
Cutaneous evaporation is the main avenue by which cattle dissipate heat via the involvement of sweat glands and other skin components. The difference in skin morphology between B. indicus and B. taurus has been recognized, as well as differences in their ability to tolerate heat.
Wang, Jian, M, Duangjinda, C, Vajrabukka, Suporn, Katawatin   +3 more
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Local immune response against larvae of Rhipicephalus (Boophilus) microplus in Bos taurus indicus and Bos taurus taurus cattle [PDF]

International Journal for Parasitology, 2010
Bos taurus indicus cattle are less susceptible to infestation with Rhipicephalus (Boophilus) microplus than Bos taurus taurus cattle but the immunological basis of this difference is not understood.
David Mayer, Louise Jackson, Bronwyn Venus   +2 more
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Heterosis in Bos taurus × Bos indicus crosses

Livestock Production Science, 1985
Abstract Data extracted from reports on Bos taurus × Bos indicus crossbreeding were used to estimate the amount of heterosis in these crosses. Traits studied were age at first calving, milk yield, lactation length, and calving interval. The estimates obtained were (percent of midparent means in parentheses): Age at first calving −3.2 to −4.4 ...
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Composition and Yield of Milk from Beef-Type Bos Taurus and Bos Indicus × Bos Taurus Dams

Journal of Animal Science, 1987
Yield, butterfat, protein, lactose and solids-not-fat of milk from mature dams (n = 128) representing eight Bos taurus and Bos indicus X Bos taurus breed types were evaluated approximately 60, 105 and 150 d postpartum. Breed type was a significant source of variation in milk yield at each stage of lactation. Average 24-h milk yields (kg) were: Hereford,
D R, Daley, A, McCuskey, C M, Bailey
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Cryopreservation of bos taurus vs bos indicus embryos: are they really different?

Theriogenology, 2002
Cryopreservation with storage at very low temperatures is essential to make full use of this technology for both biological and commercial reasons. However, most mammalian cells will die if exposed to these temperatures unless they are exposed to cryoprotectant solutions and cooled and warmed at specific rates.
J A, Visintin, J F P, Martins, E M, Bevilacqua, M R B, Mello, A C, Nicácio, M E O A, Assumpção   +5 more
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