Results 111 to 120 of about 289 (130)
Domestic Animal Endocrinology, 2011 Our primary objective of this experiment was to evaluate potential genetic differences between two diverse Bos taurus breeds [Angus (AG) and Romosinuano (RO)] in response to an endotoxin challenge. Eighteen steers (n = 9 steers/breed; 299.4 ± 5.2 kg BW) were acclimated to environmentally controlled chambers maintained at thermoneutrality (19.7 °C) and ...
Jeffery Carroll +2 more
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Differences in Heat Tolerance Between Preimplantation Embryos from Brahman, Romosinuano, and Angus Breeds [PDF]
Journal of Dairy Science, 2004 Exposure to 41 degrees C reduces development of embryos of heat-sensitive breeds (Holstein and Angus) more than for embryos of the heat-tolerant Brahman breed. Here it was tested whether embryonic resistance to heat shock occurs for a thermotolerant breed of different genetic origin than the Brahman.
C C Chase, C C Chase, P J Hansen
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Stocker and Feedlot Performance and Carcass Characteristics of Purebred Angus and Romosinuano Steers
The Professional Animal Scientist, 2006 Abstract Stacker and feedlot performance of purebred Angus (n = 61) and Romosinuano (n = 99) steers were compared over two 11-mo production cycles (2000 through 2002). Calves were born in the winter (January through March), reared in a subtropical environment (central Florida), weaned in the fall, and shipped 1,900 km for growth and finishing in a ...
W A Phillips, C C Chase
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Genetic diversity among Angus, American Brahman, Senepol and Romosinuano cattle breeds
Animal Genetics, 2007SummaryThe objective of this study was to quantify the genetic diversity among breeds under evaluation for tropical adaptability traits that affect the performance of beef cattle at the USDA/ARS SubTropical Agricultural Research Station (STARS) near Brooksville, FL, USA.
R A, Brenneman +4 more
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Journal of animal science, 2007
The objectives of this work were to evaluate birth and weaning traits, to estimate genetic effects, including heterosis and direct and maternal breed effects, and to evaluate calving difficulty, calf vigor at birth, and calf mortality of Romosinuano as purebreds and as crosses with Brahman and Angus.
D G, Riley +3 more
openaire +2 more sources
The objectives of this work were to evaluate birth and weaning traits, to estimate genetic effects, including heterosis and direct and maternal breed effects, and to evaluate calving difficulty, calf vigor at birth, and calf mortality of Romosinuano as purebreds and as crosses with Brahman and Angus.
D G, Riley +3 more
openaire +2 more sources
El ganado criollo Romosinuano (Romo)
Animal Genetic Resources Information, 1998ResumenEste artículo reseña el origen del ganado criollo colombiano Romosinuano (Romo), el Valle del río Sinú, Costa Norte de Colombia. También, se describen las características zootécnicas de la raza, sus cualidades y aptitudes productivas como raza pura y en cruzamientos.
openaire +1 more source
Journal of Animal Science, 1998
Intrabreed additive genetic, environmental, and phenotypic variances and covariances for Romosinuano (R) and Zebu (Z), as well as interbreed nonadditive genetic variances and covariances (sire x breed-group-of-dam interactions), for birth weight (BWT), weaning weight (WW), and postweaning gain (GW) were computed using a Romosinuano-Zebu multibreed data
M A Elzô
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Intrabreed additive genetic, environmental, and phenotypic variances and covariances for Romosinuano (R) and Zebu (Z), as well as interbreed nonadditive genetic variances and covariances (sire x breed-group-of-dam interactions), for birth weight (BWT), weaning weight (WW), and postweaning gain (GW) were computed using a Romosinuano-Zebu multibreed data
M A Elzô
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Livestock Science, 2015
Abstract The objectives of this work were to: (1) estimate heterosis and breed direct effects for cow reproduction traits of Romosinuano, Angus, and F 1 cows in a temperate climate, and (2) assess the effects of the type of forage grazed (bermudagrass, endophyte-infected and endophyte-free tall fescue) during the breeding season on traits and ...
J M Burke, C C Chase, D G Riley
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Abstract The objectives of this work were to: (1) estimate heterosis and breed direct effects for cow reproduction traits of Romosinuano, Angus, and F 1 cows in a temperate climate, and (2) assess the effects of the type of forage grazed (bermudagrass, endophyte-infected and endophyte-free tall fescue) during the breeding season on traits and ...
J M Burke, C C Chase, D G Riley
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Journal of Thermal Biology, 2012
Abstract Heat stress in Bos taurus cattle is a problem that affects many regions of the world. Numerous studies have focused on heat stress in feedlots or environmental chambers; but few have looked at undisturbed cattle on pasture. The present study followed two Bos taurus cattle breeds throughout a mid-Missouri summer to determine ...
D E Spiers
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Abstract Heat stress in Bos taurus cattle is a problem that affects many regions of the world. Numerous studies have focused on heat stress in feedlots or environmental chambers; but few have looked at undisturbed cattle on pasture. The present study followed two Bos taurus cattle breeds throughout a mid-Missouri summer to determine ...
D E Spiers
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