Results 171 to 180 of about 125,403 (211)

179 COMPARISON OF OOCYTE AND EMBRYO PRODUCTION AMONG BOS TAURUS, BOS INDICUS, AND INDICUS-TAURUS DONOR COWS

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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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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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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Acquisition and Expression of Resistance by Bos indicus and Bos indicus x Bos taurus Calves to Amblyomma americanum Infestation

The Journal of Parasitology, 1985
Purebred and crossbred Bos indicus calves were infested 1, 2, or 3 times with 10 female and 5 male Amblyomma americanum. Resistance was acquired by both the purebred and the crossbred calves after 1 infestation and resulted in statistically significant decreases in the percentages of females that engorged, the mean weights of engorged females, and the ...
J E, George, R L, Osburn, S K, Wikel
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Pregnancy Rates to Fixed Embryo Transfer of Vitrified IVP Bos indicus, Bos taurus or Bos indicus × Bos taurus Embryos

Reproduction in Domestic Animals, 2015
ContentsThe pregnancy rates obtained after the transfer of cryopreserved in vitro‐produced (IVP) embryos are usually low and/or inconsistent. The objective of this study was to evaluate the pregnancy rates of Holstein, Gyr and Holstein × Gyr cattle after the transfer of vitrified IVP embryos produced with X‐sorted sperm.
L S R, Marinho, B V, Sanches, C O, Rosa, J H, Tannura, A G, Rigo, A C, Basso, J H F, Pontes, M M, Seneda   +7 more
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Bos taurus and Bos indicus genome sequencing

2015
The goals of the study and relevance is to explore the phylogenetic relationships and domestication history of Chinese native cattle and other foreign breeds, identify selected genes and genetic variants related to adaptation, domestication, disease-resistance, growth, and meat quality in different cattle breeds.
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Fertility on synchronized estrus in crossbred (Bos taurus × Bos indicus) heifers

Theriogenology, 1983
This study was performed in Western Maharastra (India). The 272 crossbred heifers were randomly allocated within herds to one of the four following groups: 1) silastic coils, 10 days treatment (n = 65); 2) Norgestomet implants, 10 days treatment (n = 71); 3) prostaglandin F(2alpha) two injections 11 days apart (n = 70); and 4) control (n = 66).
S M, Lokhande, V H, Patil, D C, Mahajan, Y P, Phadnis, P, Humblot, M, Thibier   +5 more
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Spermatogenesis in Bali cattle (Bos sondaicus) and hybrids with Bos indicus and Bos taurus

Research in Veterinary Science, 1990
Semen quality, testis size and efficiency of sperm production in Bali cattle (Bos sondaicus) and hybrids with Bos indicus and Bos taurus were determined. Mean (+/- SEM) daily sperm production per gram of testis parenchyma (DSPG) in six purebred Bali bulls was 12.2 +/- 0.7 x 10(6).
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Plasma progesterone concentration in Bos taurus and Bos indicus heifers

Theriogenology, 1980
Abstract Progesterone concentrations were determined by radioimmunoassay in the plasma of heifers of German Brown Swiss, Holstein-Friesian and White Fulani cattle during two consecutive estrous cycles in the dry and wet seasons in a tropical climate. Seasonal differences in the levels were not significant but peak levels were significantly higher in ...
Oyewole Adeyemo, Everett Heath
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Effect of high temperature on physiological parameters of Nelore (Bos taurus indicus) and Caracu (Bos taurus taurus) cattle breeds

Tropical Animal Health and Production, 2020
The climate-related problems that affect animal production in tropical countries have encouraged seeking solutions to increase herd productivity and one alternative is the use of breeds adapted to high-temperature environments. The objective of this study was to evaluate the effect of temperature on 77 Caracu and Nelore males submitted to three ...
Sergio B. G. P. N. P. Lima, Nedenia Bonvino Stafuzza, Bianca V. Pires, Sarah F. M. Bonilha, Joslaine N. S. G. Cyrillo, João A. Negrão, Claudia C. P. Paz   +6 more
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