Effects Of DDGS On Milk Yield And Milk Composition Of Dairy Cow

This test is DDGS from corn fermentation by yeast extravt alcohol, probioticfermentation, sealed packaging product with palatability, high levels of bacterialprotein digestion speed, at the same time contains a lot of probiotics, cows have acertain role in health care, is a new type of high-quality active protein feed, added tothe diets of lactating dairy cows to increase the production performance of dairy cowsto increase milk production, improve dairy farming the economic benefits of industry.Select30dairy cows farm in Luoyang Juer, which are basically similar inparities, lactating periods, milk production, were selected and divided randomly intothe control group(added to basal diet) and the experimental groupⅠwere added to4kgDDGS, experimental groupⅡwere added to6kg DDGS and each cows was fed eachday,statistical milk yield and milk composition analysis. Select40dairy cows farmin Luoyang zhuoer, which are basically similar in parities, lactating periods, milkproduction, were divided into high-yielding cattle(A) at different lactation in cattleproduction(B), low-yielding cattle(C) and lowest-producing cattle(D) four groups,each group were randomly divided into a control group(added to basal diet)andexperimental group(at different times in the diet added to a1:4ratio of wet and drymixed DDGS),the test results were as follows.1. Effects of DDGS added to the drinking water on milk yield of dairy cowBy feeding experiment, record and analyze data showed that feeding10dgroupⅠand groupⅡmilk than the control group increased by1.76kg and1.68kg after20d of feeding than in the control group were increased by2.30kg and2.28kg,theeffect of increasing milk.The economic benefit analysis shows that: two test groupscould improve milk production,but the groupⅠprofit than test groupⅡprofit higher,better description drinking water supplemented4kg DDGS effect.2. Effects of DDGS added to the drinking water on milk constituent of dairy cow The acquisition experimental group and the control group milk samples,milkcomposition analysis the detected breast milk fat, milk protein, lactosecontent,analytical data showed that the groupⅠand groupⅡmilk fat, milk protein,lactose content in the first10d and20d compared with the control group improved, butthe statistical analysis of the difference was not significant (P>0.05), prompted DDGSno significant effect on milk quality.3. Effects of DDGS diets supplemented on milk yield of dairy cowThis test by grouping,feeding and management,record data analysis showed thatthe A,B,C,D four groups in the experimental group compared with the control group,7d,14d and21d of day per cow milk yield average prolific0.59kg,1.19kg,1.63kg;0.29kg,1.43kg,1.67kg;0.35kg,1.24kg,1.60kg;0.38kg,1.26kg,1.56kg, four groups in theexperimental group and control group compared to the milk yield no significantdifference (P>0.05).The economic benefit analysis shows that: A,B,C,D four groups intest group feed input costs are high,1:4DDGS in dairy cows should’t be added.4. Effects of DDGS diets supplemented on milk constituent of dairy cowThe acquisition experimental group and control group milk samples collectedmilk fat percentage, protein and lactose content of milk composition analyzer detection,analysis of data showed that the experimental group compared with control groupA,B,C three groups,in7d,14d and21d milk composition did not change the statisticalanalysis of the difference was not significant (P>0.05). Group D experimental groupcompared with control group in7d,14d and21d fat percentage(4.87%,5.72%,7.42%),milk protein(3.47%,3.75%,3.82%), lactose(4.79%,4.81%,4.81%) content wereimproved statistical analysis a significant difference(P<0.05).That DDGS on high-yielding cattle in cattle production, low-yielding cattle did not affect significantlyaffect the lowest cattle production.