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The relationship between dairy cow hygiene and somatic cell count in milk
(Elsevier B.V., 2011-08-01)
Corporal hygiene is an important indicator of welfare for dairy cows and is dependent on facilities, climate conditions, and the behavior of the animals. The objectives of this study were to describe how the hygiene ...
Effects of body weight loss on serum progesterone concentrations of non-lactating dairy cows
(Elsevier B.V., 2011-01-01)
The objective was to evaluate serum concentrations of nonesterified fatty acids (NEFA), cortisol, insulin, and progesterone (P4) of dairy cows maintaining or mobilizing body weight (BW). Eleven non-lactating, non-pregnant, ...
Associations among milk production and rectal temperature on pregnancy maintenance in lactating recipient dairy cows
(Elsevier B.V., 2011-09-01)
The objective of this study was to evaluate the associations among milk production, rectal temperature, and pregnancy maintenance in lactating recipient dairy cows. Data were collected during an 11-mo period from 463 ...
Concentrations of Progesterone and Insulin in Serum of Nonlactating Dairy Cows in Response to Carbohydrate Source and processing
(Amer Dairy Science Assoc-adsa, 2008-12-01)
Two experiments were conducted to investigate the effects of carbohydrate source and processing on serum progesterone (P4) and insulin concentrations of nonlactating dairy cows. In experiment 1, 12 ovariectomized grazing ...
Effects of bovine somatotropin injection on serum concentrations of progesterone in non-lactating dairy cows
(2013-06-01)
The objective of this experiment was to evaluate the effects of bovine somatotropin administration on serum concentrations of glucose, insulin, NEFA, IGF-I, and progesterone (P4) in ovariectomized non-lactating dairy cows ...
Effects of temperament on pregnancy rates to fixed-timed AI in Bos indicus beef cows
(Elsevier B.V., 2011-12-01)
The objective of the present experiment was to assess the effects of temperament on pregnancy rates to fixed-time AI (FTAI) in Bos indicus beef cows. A total of 761 multiparous lactating Nelore cows, originated from 4 ...
Herbage selection, intake and digestibility in grazing beef cattle
(Livestock Science, 2019)
Effects of rumen-protected polyunsaturated fatty acid supplementation on reproductive performance of Bos indicus beef cows
(Amer Soc Animal Science, 2009-12-01)
Five experiments evaluated the effects of rumen-protected PUFA supplementation on reproductive function of Bos indicus beef cows. In Exp. 1, 910 lactating primiparous Nelore cows were randomly assigned to receive 0.4 kg/d ...
Progesterone-based estrous synchronization protocols in non-suckled and suckled primiparous Bos indicus beef cows
(Elsevier B.V., 2010-05-01)
In Experiment 1, effects of an intravaginal progesterone insert (CIDR) for synchronization of estrus in non-suckled cycling primiparous Bos indicus beef cows were evaluated. Cows received either no treatment (Control), ...