Effect of dried brewers grains in sharabi cows rations on milk yield and compositions

	Effect of dried brewers grains in sharabi cows rations on milk yield and compositions
journal of kerbala university
Article 1, Volume 13, Issue 2, 2017, Pages 84-92 PDF (0 K)
Abstract
Four sharabi cows were homogeneous in live body weight (369-377 kg) , productive seasonal, and daily milk yield (6.50 kg) were used in latin square design(4×4) to study the effect of different levels of dried brewers grains on milk yield and composition. Four rations consisted mainly of barley,wheat bran and soybean meal and contained either 0,12,24 and 36% of dried brewers grains.The cows were fed on four balanced rations in percentage of crude protein and level of metabolize energy All cows were fed according to daily milk yield through two time daily (5.30 am and 3.00 pm),during milking period.Daily feed intake and milk yield were recording and milk samples were taken for chemical analysis.This experinment was continuous for 120 days.The results indicated that there were significant difference (P≤0.05) in amounts of consumes in total of dry matter and metabolize energy between both first,second treatments (0,12%dried brewers grains) than third,fourth treatments (24,36%dried brewers grains).Also this results showed that there were highly significant difference (P≤0.01) on amounts of concentrate forage consumes ,fiber crude and feed conversion among four treatments with by increasing the proportion of dried brewers grains in feeding diets of sharabi cows.As for quantities of milk produced and its components the results of statistical analysis was shown the existence of significant differences (p≤0.05) in the amount of milk produced , percentage of ash and pH values of liquid milk between four treatments while the results confirmed the existence were highly significant differences (p≤ 0.01) in percentages of crude protein , crude fat , moisture , non solids fat and total solids among four treatments.Moreovere, the results showed slight mathmatical increase in live weight for cows during this experiment but that there were the highest increasing in live weight was in the fourth treatments when compared to other treatments.Concluded from the results of this experiment showed significant improved in feed conversion trait and other hand the results showed an significantly improving in amount of milk produced and its proportions of components with increasing proportion of dried brewers grains in experimental rations when compared to the first treatment which had not contain dried brewers grains in composition of ration.

Statistics Article View: 46 PDF Download: 37