2002年11月1日 · Cows fed 0.5 M increased LBF abruptly after feeding; LBF reached a maximum at 1 h, and it declined back to values similar to unfed cows at 3 and 4 h after feeding. Similar …

2003年9月15日 · There was no change in serum progesterone during the 8 h treatment period in unfed cows; however, feeding decreased ( P <0.05) circulating progesterone between 2 and 6 …

2000年12月1日 · This review integrates information on follicular and hormonal physiology and epidemiology into a novel physiological model for regulation of the ovulation rate in lactating …

2001年1月1日 · Glucose infusion into fed cows produced qualitatively similar effects to those observed in the unfed cows. However, blood and liver ketone-body concentrations were not …

2018年5月1日 · Fed carcasses (both YF and MF) were selected from a processing facility that identified all cattle as being commercially finished on a conventional grain-based diet, …

Thirty-five non-pregnant beef cows in three age classes (< 4 yr, 4–5 yr, and > 5 yr) were allocated at random to two treatments (fed, unfed) soon after weaning in November 1978. On day 1, the …

'We refer to beef produced by cull cows as "unfed" beef since typically cull cows are not placed in feedlots on grain concen-trates prior to slaughter. We also refer to unfed and fed beef to …

1993年6月1日 · Two exam ples of extreme effects of negative energy bal ance are given in the milk fat composition data of Luick and Smith (49) from cows that were clinically ketotic or …

However, cows that have postparturient diseases and undergo more severe loss of body condition score (BCS) have more prolonged anovular condition. Cows that had no change in BCS from …

The effect on intake of concentrates of exchanging rumen contents between fed and unfed cows. The effect on intake of concentrates of exchanging rumen contents between fed and unfed …