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Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 1993;6(1): 53-59.
https://doi.org/10.5713/ajas.1993.53    Published online March 1, 1993.
Nutritional quality of whole crop corn forage ensiled with cage layer manure. II. In situ degradability and fermentation characteristics in the rumen of goats
J. H. Kim, H. Yokota, Y. D. Ko, T. Okajima, M. Ohshima
Abstract
In situ degradability and fermentation characteristics in the rumen of goats fed whole crop corn forage ensiled with (MS silage) or without (CS silage) 30% of cage layer manure (CLM) were investigated. The two silages were well preserved. To adjust nitrogen intake of CS silage to that of MS silage, the 3rd group of goats was given urea with CS silage at feeding time (US silage). Each goat was given a diet of 2% of the body weight (dry matter basis) daily. In situ degradability of dry matter (DM) and crude protein (CP) of MS silage in the rumen were higher than those of CS and US silages. Total potentially degradable portions of DM and CP in MS silage were also higher than those in CS and US silages. Blood urea nitrogen and rumen ammonia nitrogen concentration of goats fed US and MS silages were significantly (p<0.05) higher than those of goats fed CS silage. Acetic, propionic and butyric acids in ruminal fluids of goats fed MS silage were significantly (p<0.05) higher than those of goats fed CS and US silages.
Keywords: Corn Silage; Cage Layer Manure; Digestibility; Ruminal Acid Concentrations; Degradability
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