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Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 2000;13(11): 1548-1553.
DOI: https://doi.org/10.5713/ajas.2000.1548    Published online November 1, 2000.
Effects of Whole Crop Corn Ensiled With Cage Layer Manure on Nutritional Quality and Microbial Protein Synthesis in Sheep
S. C. Kim, J. H. Kim, C. H. Kim, J. C. Lee, Y. D. Ko
Abstract
An experiment was conducted to study the nutritional quality of whole crop corn silage ensiled with cage layer manure in sheep. Treatments were designed as a 3횞3 Latin square with 16-day periods. Sheep were allotted in one of three diet-treatments, which were whole crop corn silage (CS), whole crop corn+30% cage layer manure (CLM) silage (based on DM; MS) and rice straw+concentrate (SC) mixed at 8:2 ratio (on DM basis). Silage ensiled with CLM significantly increased (p<0.05) digestibilities of crude protein, NDF and ADF, TDN over the other treatments. Ruminal pH in sheep fed SC was significantly (p<0.05) higher than that of the other diets at 0.5, 1, 2, 4 and 8 h after feeding. Ruminal ammonia nitrogen concentration of the MS treatment was significantly (p<0.05) higher than that of the other treatments at 0, 1, 2 h after feeding. The MS treatment highly increased (p<0.05) feed intake, digestibility of organic matter and crude protein, nitrogen intake and retained nitrogen. The MS treatment highly increased (p<0.05) purine derivative (PD) excretion leading to higher microbial protein synthesis.
Keywords: Corn Manure Silage; Cage Layer Manure; Feed Intake; Microbial Protein Synthesis


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