DAY-TO-DAY VARIATIONS IN FAT PERCENT OF COW'S MILK

Autor:	J. D. Erfle, A. S. Atwal
Rok vydání:	1990
Předmět:	chemistry.chemical_classification food and beverages Biology Percent fat Rumen fluids and secretions Milk yield Food Animals chemistry Milk fat Propionate Hay Animal Science and Zoology Food science Day to day Morning
Zdroj:	Canadian Journal of Animal Science. 70:731-734
ISSN:	1918-1825 0008-3984
DOI:	10.4141/cjas90-090
Popis:	Large day-to-day variations in milk fat, particularly for the morning milkings, were observed in 36 Holstein cows. Changes in percent fat were gradual and produced wavelike patterns in a number of instances. Supplemental feeding of long hay had no effect on acetate/propionate ratio in rumen fluid, daily milk yield or weighted milk fat percentage. Key words: Dairy cows, milk, fat depression, hay
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4dd601f00a3d0ef09793cf991d42f7b https://doi.org/10.4141/cjas90-090 Zobrazit plný text záznamu