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Estimativa do Consumo Voluntário do Capim-Tanzânia (Panicum maximum, Jacq. cv. Tanzânia) por Vacas em Lactação sob Pastejo Rotacionado
(2001-11-01)
The trial was carried out in a Tanzania grass (Panicum maximum) pasture, rotationally grazed by lactating cows, to estimate the dry matter intake. Three treatments were tested: crossbred cows fed 3 kg per day of concentrate ...
Diversity of Staphylococcus species and prevalence of enterotoxin genes isolated from milk of healthy cows and cows with subclinical mastitis
(Elsevier B.V., 2014-02-01)
The objectives of this study were to determine the occurrence and diversity of Staphylococcus spp. in milk from healthy cows and cows with subclinical mastitis in Brazil and to examine the profile of enterotoxin genes and ...
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 ...
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 ...
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 ...
Effects of rumen-protected choline supplementation on metabolic and performance responses of transition dairy cows
(Amer Soc Animal Science, 2015-04-01)
The objective of this experiment was to compare metabolic and milk production parameters in dairy cows supplemented and nonsupplemented with rumen-protected choline (RPC) during the transition period. Twenty-three nonlactating, ...
Effects of calcium salts of soybean oil on factors that influence pregnancy establishment in Bos indicus beef cows
(Amer Soc Animal Science, 2014-05-01)
The objective of this experiment was to compare fatty acid (FA) concentrations in plasma and reproductive tissues as well as hormones and expression of genes associated with pregnancy establishment in beef cows supplemented ...
Effects of rumen-protected choline supplementation on metabolic and performance responses of transition dairy cows
(2015-04-01)
The objective of this experiment was to compare metabolic and milk production parameters in dairy cows supplemented and nonsupplemented with rumen-protected choline (RPC) during the transition period. Twenty-three nonlactating, ...
Endometrial expression of selected transcripts in postpartum of primiparous Holstein cows with clinical and subclinical endometritis
(Elsevier, 2015)
Postpartum endometritis compromises milk production and fertility in high-producing dairy cows. Infection of the endometrium induces an inflammatory response with secretion of cytokines that lead to polymorphonuclear cells ...