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Research Journal of Animal Sciences
Year: 2012  |  Volume: 6  |  Issue: 1  |  Page No.: 4 - 7

Effects of Diets Containing Humic Acid on the Milk Yield, Milk Composition and Blood Metabolites in Saanen Goats

Taskin Degirmencioglu    

Abstract: In this research, the effect of diets containing humic acid at different levels on the some blood and milk compositions in Saanen goats were determined. Eighteen Saanen goats (2 old, 52 kg live weight) were fed three diets, containing 0 g kg-1 humic acid (T1), 1 g kg-1 humic acid (T2) and 3 g kg-1 humic acid (T3) in a 3x3 Latin square design experiment. Each period consisted of 21 days of an adaptation phase and 7 days of a sample collection phase. Blood and milk samples were collected at the end of sample collection periods. Total DM intake values were found 1.73, 1.74 and 1.79 kg day-1 for goats fed for T1-T3, respectively. It was determined that diet T3 had much higher (p<0.05) milk yield than did the T1 (milk yield = 2.45 and 2.11 kg day-1, respectively) and this yield was similar to that of diet T2 (2.37). However, humic acid did not improve milk fat, non-fat milk solids, milk protein or lactose content. Humic acid application significantly reduced the total cholesterol in blood (p<0.05; 124.1, 100.8 and 102.2 mg dL-1) for T1-T3, respectively. LDL cholesterol levels of blood serum were determined as 23.49, 15.14 and 16.19 mg dL-1, respectively, (p<0.05). Further investigation is required to elucidate the effects of humic acid on goat performance.

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