Effects of high ambient temperature and restricted feed intake on nitrogen utilization for milk production in lactating Holstein cows

Autor:	Masahito Tanaka, Mitsuru Kamiya, Shigeru Shioya, Yuko Iwama
Rok vydání:	2005
Předmět:	Nitrogen balance Animal science Milk protein Biochemistry Chemistry food and beverages chemistry.chemical_element General Medicine General Agricultural and Biological Sciences Milk production Crossover study Nitrogen Protein concentration
Zdroj:	Animal Science Journal. 76:217-223
ISSN:	1344-3941
DOI:	10.1111/j.1740-0929.2005.00259.x
Popis:	Three experiments were performed to examine the effects of high ambient temperature and feed restriction on nitrogen (N) utilization in lactating cows. Experiment 1 investigated N utilization in four cows fed ad libitum in a 2 × 2 crossover design under constant moderate (18°C) or high (28°C) ambient temperatures. The milk N secretion (P
Databáze:	OpenAIRE
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