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Impacts of stocking density on development and puberty attainment of replacement beef heifers
(2017-12-01)
In all, 60 Angus×Hereford heifers were ranked by age and BW (210±2 days and 220±2 kg) on day 0, and assigned to: (a) one of three drylot pens (10×14 m pens; 10 heifers/pen) resulting in a stocking density of 14 m2/heifer ...
Impacts of postweaning growth rate of replacement beef heifers on their reproductive development and productivity as primiparous cows
(2019-10-03)
This experiment evaluated the effects of postweaning body weight (BW) gain of replacement beef heifers on their reproductive development and productivity as primiparous cows. Seventy-Two Angus × Hereford heifers were ranked ...
Performance, carcass and cut yields of crossbred Marchigiana x Nellore animals, bulls and heifers, finished in feedlots
(Revista Brasileira Zootecnia Brazilian Journal Animal SciVicosa-mgBrasil, 1998)
Effect of forage species and supplement type on rumen kinetics and serum metabolites in growing beef heifers grazing winter forage
(2017-12-01)
The objective of this study was to determine the effect of stockpiled forage type and protein supplementation on VFA production, serum metabolites, and BW in yearling beef heifers. Over 2 yr, spring-born, Angus crossbred ...
Plasma progesterone concentration in beef heifers receiving exogenous glucose, insulin, or bovine somatotropin
(Amer Soc Animal Science, 2012-09-01)
Three experiments were conducted to evaluate plasma concentrations of glucose, insulin, IGF-I, and progesterone (P4) in pubertal beef heifers receiving exogenous glucose, insulin, or sometribove zinc. All heifers used had ...
Effects of temperament on growth, plasma cortisol concentrations and puberty attainment in Nelore beef heifers
(2019-06-01)
Excitable temperament disrupts physiological events required for reproductive development in cattle, but no research has investigated the impacts of temperament on growth and puberty attainment in Bos indicus females. ...
Creep-feeding to stimulate metabolic imprinting in nursing beef heifers: Impacts on heifer growth, reproductive and physiological variables
(2015-01-01)
This experiment compared growth, physiological, and reproductive responses of beef heifers with (MI) or without (CON) access to a creep-feeder, as a manner to stimulate metabolic imprinting while nursing their dams. On day ...
Impact of 24-h feed or water, or both, deprivation on feed intake, metabolic, and inflammatory response in beef heifers
(Oxford Univ Press Inc, 2018-09-01)
This experiment evaluated the effects of 24-h feed or water, or both, restriction on hay intake, metabolic, and inflammatory response in growing beef heifers. Forty Angus x Hereford heifers were ranked by initial body ...