Results 221 to 230 of about 336,156 (254)

Effects of extending the length of pro-oestrus in an oestradiol- and progesterone-based oestrus synchronisation program on ovarian function, uterine environment and pregnancy establishment in beef heifers.

Reproduction, Fertility and Development, 2018
J. J. de la Mata, R. Núñez–Olivera, F. Cuadro, D. Bosolasco, V. de Brun, Ana Meikle, G. Bó, A. Menchaca   +7 more
semanticscholar   +1 more source

Effective use of SexedULTRA™ sex-sorted semen for timed artificial insemination of beef heifers.

Theriogenology, 2017
Jordan M. Thomas, J. Locke, R. Vishwanath, John Hall, M. Ellersieck, Michael F. Smith, D. Patterson   +6 more
semanticscholar   +1 more source

Age at Puberty and Pregnancy Rate in Beef Heifer Genotypes With Contrasting Nutritional Intake From 8 to 13 Months of Age

Animal Reproduction Science, 2020
M McGee, A K Kelly, A K Kelly
exaly  

The relationship between external auditory canal temperature and onset of estrus and ovulation in beef heifers.

Theriogenology, 2018
Federico Randi, M. McDonald, P. Duffy, A. Kelly, P. Lonergan   +4 more
semanticscholar   +1 more source

Prediction of Age and Weight at Puberty in Beef Heifers

Journal of Animal Science, 1974
G F, Arije, J N, Wiltbank
openaire   +2 more sources

Effect of initial GnRH and time of insemination on reproductive performance in cyclic and acyclic beef heifers subjected to a 5-d Co-synch plus progesterone protocol.

Theriogenology, 2018
I. L. Helguera, P. Whittaker, A. Behrouzi, R. Mapletoft, M. Colazo   +4 more
semanticscholar   +1 more source

Enteric methane emissions from low- and high-residual feed intake beef heifers measured using GreenFeed and respiration chamber techniques.

Journal of Animal Science, 2017
A. Alemu, D. Vyas, G. Manafiazar, J. Basarab, K. Beauchemin   +4 more
semanticscholar   +1 more source

Interaction of dietary energy source and body weight gain during the juvenile period on metabolic endocrine status and age at puberty in beef heifers.

Journal of Animal Science, 2017
Colin Allen, L. O. Tedeschi, D. Keisler, Rodolfo C. Cardoso, B. C. A. Alves, M. Amstalden, G. L. Williams   +6 more
semanticscholar   +1 more source

Dystocia in Beef Heifers: A Review of Genetic and Nutritional Influences

New Zealand Veterinary Journal, 2006
Nicolas Lopez-Villalobos, Rebecca Hickson, Paul R. Kenyon   +2 more
exaly  

Establishment of critical timing of progesterone supplementation on corpus luteum and embryo development in beef heifers.

Animal Reproduction Science, 2017
M. Parr, S. Scully, P. Lonergan, A. C. Evans, M. Crowe, M. Diskin   +5 more
semanticscholar   +1 more source