Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Richard J. Rasby"'
Autor:
Humberto Blanco-Canqui, Robert G. Bondurant, Jordan L. Cox, James C. MacDonald, Manbir K. Rakkar, Richard J. Rasby, K. M. Ulmer, Mary E. Drewnoski, Karla H. Jenkin
Publikováno v:
Agronomy Journal. 111:122-127
Publikováno v:
The Professional Animal Scientist. 27:540-546
Multiparous beef females (n = 832) were used to study the effects of supplementing cows grazing cornstalk residue with a dried distillers grain based cube on cow and calf performance. Cows were blocked by age, BCS, BW, and calving date and assigned r
Publikováno v:
Journal of Animal Science. 85:2298-2303
A 2-yr study was conducted at 2 loca- tions to determine if supplementing beef heifers with dried distillers grains (DDG) as an energy source af- fected growth or reproduction. Spring-born crossbred heifers (n = 316) were blocked by age or sire and a
Autor:
Terry J. Klopfenstein, Perry Brewer, Chris R. Calkins, Rosemary V. Anderson, Richard J. Rasby, J. M. James
Publikováno v:
Journal of Animal Science. 85:1239-1246
A 2-yr experiment was conducted to compare carcass characteristics and meat palatability attributes of steers ((3/4) British, (1/4) Continental) finished postweaning as calves or yearlings. Calves and yearlings of the same contemporary group were des
Publikováno v:
Journal of Animal Science. 84:3415-3420
Ten years of calving records were exam- ined from Bos taurus crossbred cows (mean of 182 cows/ yr) to quantify the effects of environmental conditions during the breeding season on pregnancy rate. Esti- mated breeding dates were determined by subtrac
Autor:
Richard J. Rasby, Dennis R. Brink, Stephen D Kachman, J. L. Martin, R. U. Lindquist, Duane H. Keisler
Publikováno v:
Journal of Animal Science. 83:2663-2670
A 2-yr study using primiparous and multiparous, spring-calving, crossbred beef cows was conducted to evaluate the effects of supplemental whole corn germ on reproductive performance, calf performance, and serum leptin concentrations. Each year, cows
Publikováno v:
Journal of Animal Science. 83:694-704
A 3-yr experiment was conducted with cows and their calves to evaluate resource inputs, ani- mal performance, and carcass characteristics of two production systems. In the control system, cows (CON; n = 99/yr) grazed pasture and were fed hay during t
Publikováno v:
Animal Reproduction Science. 40:253-259
Selection for carcass traits such as deposition of intramuscular fat (marbling), which is a primary trait used as an indicator of meat quality, may incur additional effects such as younger age at puberty. Therefore, a trial was conducted for 2 years
Autor:
J. E. Kinder, Richard J. Rasby, V. Mariscal, Andrea S. Cupp, Roger J. Kittok, M. E. Wehrman, T. Sanchez, K. E. Peters, F. N. Kojima, E. G. M. Bergfeld
Publikováno v:
Biology of Reproduction. 49:1102-1107
Our hypothesis was that conception in bovine females would be enhanced if the corpus luteum was present during the period of progestin treatment to synchronize estrus. In this study, 67 heifers (one replicate) and 124 cows (two replicates) were rando
Publikováno v:
Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.55 n.1 2003
Arquivo brasileiro de medicina veterinária e zootecnia
Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 55, Iss 1, Pp 1-7 (2003)
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Volume: 55, Issue: 1, Pages: 1-7, Published: FEB 2003
Arquivo brasileiro de medicina veterinária e zootecnia
Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 55, Iss 1, Pp 1-7 (2003)
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Volume: 55, Issue: 1, Pages: 1-7, Published: FEB 2003
Seventy-five Angus x MARC II crossbred heifers were used to assess the effects of age at weaning on calf performance and blood constituents. Calves were weaned at 150, 210, or 270 days of age with comparisons made to their non-weaned counterparts. Ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46b827a9dff8d17b0108433e809ca593
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000100001
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000100001