EFFECTS OF FROST DAMAGE ON PHYSICAL AND CHEMICAL CHARACTERISTICS AND TRUE METABOLIZABLE ENERGY OF WHEAT

Autor:	J. B. O’Neil, R. E. Salmon
Rok vydání:	1977
Předmět:	Animal fat Weight decreased Animal science Food Animals Agronomy Chemistry Energy density Animal Science and Zoology Frost (temperature) Carbohydrate Body weight Feed conversion ratio Crude fibre
Zdroj:	Canadian Journal of Animal Science. 57:755-760
ISSN:	1918-1825 0008-3984
DOI:	10.4141/cjas77-096
Popis:	The relationships between the physical, chemical and nutritional characteristics of a series of samples of frost-damaged wheat have been studied. The five cleaned samples ranged in bulk weight from 83.7 to 57.9 kg/hi (65 to 45 lb/bu). As bulk weight decreased, 1,000-kernel weight and available carbohydrate were found to decrease and crude fibre to increase. Available carbohydrate and crude fibre, but not bulk weight, were highly correlated with true metabolizable energy (TME), which ranged from 3.91 to 3.22 kcal/g. Equations were derived for prediction of TME from available carbohydrate or crude fibre. Body weight gain and efficiency of feed conversion decreased with increasing frost damage when the wheat was fed to growing turkeys at 50% of the diet. The restoration of dietary energy density, using animal fat, reversed these effects.
Databáze:	OpenAIRE
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