Immediate and residual effects of heat stress and restricted intake on milk protein and casein composition and energy metabolism

The effects of heat stress on dairy production can be separated into 2 distinct causes: those effects that are mediated by the reduced voluntary feed intake associated with heat stress, and the direct physiological and metabolic effects of heat stress. To distinguish between these, and identify thei...

Full description

Saved in:
Bibliographic Details
Published in:Journal of dairy science 2015-04, Vol.98 (4), p.2356-2368
Main Authors: Cowley, F.C., Barber, D.G., Houlihan, A.V., Poppi, D.P.
Format: Article
Language:English
Subjects:
Animal Feed
Animals
Blood Glucose - metabolism
Calcium - blood
casein
Caseins - analysis
Cattle
Creatine Kinase - blood
Creatinine - blood
Diet - veterinary
Energy Metabolism
Fatty Acids, Nonesterified - blood
Female
heat stress
Hot Temperature
Housing, Animal
Humidity
Lactation
Lactic Acid - blood
Milk - chemistry
Milk - secretion
milk protein
Milk Proteins - analysis
Potassium - blood
restricted intake
Sodium - blood
Stress, Physiological
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of heat stress on dairy production can be separated into 2 distinct causes: those effects that are mediated by the reduced voluntary feed intake associated with heat stress, and the direct physiological and metabolic effects of heat stress. To distinguish between these, and identify their effect on milk protein and casein concentration, mid-lactation Holstein-Friesian cows (n=24) were housed in temperature-controlled chambers and either subjected to heat stress [HS; temperature-humidity index (THI) ~78] or kept in a THI
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.2014-8442