Short communication: Factors affecting hair cortisol concentrations in lactating dairy cows
نویسندگان
چکیده
منابع مشابه
Factors affecting milk cortisol in mid lactating dairy cows
BACKGROUND Whether the measurement of cortisol in dairy cows can be used as a biomarker of adverse environmental or pathophysiological conditions is still under of scientific debate. In these situations, several systems mainly the hypothalamic-pituitary-adrenal axis, the autonomic nervous system, and the immune system are recruited to reestablish homeostasis. A first aim of the present study wa...
متن کاملFactors Affecting Dry Matter Intake by Lactating Dairy Cows
Feed intake is the single most critical factor of dairy production, and performance of dairy cattle can be enhanced or hindered by environmental factors that affect it. These environmental factors can by divided into physical and climatic conditions. On modern dairies, the physical factors may be of more concern. Modern facilities provide the cow with protection from the natural elements. Howev...
متن کاملShort communication: Effect of subacute ruminal acidosis on in situ fiber digestion in lactating dairy cows.
Subacute ruminal acidosis (SARA) was induced by replacing 25% of the total mixed ration intake [dry matter (DM) basis] with pellets consisting of 50% wheat and 50% barley. This reduced dietary forage content (DM basis) from 39.7 to 29.8% and increased the dietary concentrate content from 60.3 to 70.2%. Induction of SARA reduced the 24- and 48-h in situ neutral detergent fiber (NDF) degradabilit...
متن کاملFactors Affecting Manure Excretion by Dairy Cows
Manure in an inevitable byproduct of the production of meat and milk destined for human consumption. Excessive excretion of manure and manure nutrients represent inefficiencies which increase feed costs, increase the environmental impact of dairy farming, and increase the costs associated with moving and storing manure. Profitability can be enhanced when good feeding and management practices ar...
متن کاملFactors Affecting Feed Efficiency of Dairy Cows
Feed efficiency (FE) is a concept that has gained popularity in recent years in the dairy industry. Monitoring FE is becoming a more common benchmark for monitoring the profitability of milk production relative to dry matter (DM) intake. In today’s markets, feeds and commodities are becoming more costly, which is driving the requirement for more efficient utilization to maintain profitability. ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2014
ISSN: 0022-0302
DOI: 10.3168/jds.2014-8444