The Effects of chromium supplementation to the ration on yield and milk composition of Nubian goats

Abstract

The effects of chromium supplementation to the ration .on the yield and milk composition of Nubian goats This experiment was conducted in the department of animal production of the college of agriculture shambat .( (SUST ), during the period of ( 18-11-2012 to 4-4-2013 Twelve Nubian goat, which have more than one production season were selected and accordingly divided in to three equal groups (A, B, C ) based on their averaged body .weights The animals in group A and C were fed with chromium supplementation added as 1.25 ml g to each supplemented group according to their averaged body weights , as .(recommended by (Alltech company, USA Average ambient temperature in the shed was recorded .to study it Effect on the experimental animal body temperature and hence the effect of chromium supplementation on the experimental animal body temperature , feed intake and the .effects on milk yield and composition of the animals -:The results of this study reflected the following No significant difference in body temperature between all the experimental animals was .rdcorded 4 • significant difference (p≤0,01) effect of chromium supplemented on milk yield of the two experimental group (A& C) compared with the .(control group (B • Also a significant (p≤0.05) effect of the chromium supplemented on the solid not fat (SNF) in the milk of the treated group as indicated the following :table %Lactose %Ash %SNF • Protein %Fat Treatme % nt 1.12±3.56 0.09±0. 1.37±9.0 0.58±2. 0.37±2. Treated 95 80 05 A 5 1.59±3.07 0.08±0. 2.37±9.6 0.74±3. 0.64±2. Treated 64 26 60 C 3 1.62±3.53 0.08±0. 1.99±10. 0.86±3. 0.49±3. Control 72 52 00 B 83