中国奶牛
中國奶牛
중국내우
CHINA DAIRY CATTLE
2015年
15期
4-8
,共5页
混菌培养物%荷斯坦牛%产奶量%乳品质
混菌培養物%荷斯坦牛%產奶量%乳品質
혼균배양물%하사탄우%산내량%유품질
Mixed bacteria culture%Holstein%Milk yield%Milk quality
本文研究了酿酒酵母与枯草芽孢杆菌双联混菌培养物对泌乳期荷斯坦牛产奶量及乳品质的影响。试验选取20头体况相近的荷斯坦泌乳牛配对分成两组，对照组饲喂基础日粮，试验组另外添加1kg/（头·d）混菌培养物，预试期7d，正试期35d，测定试验组与对照组的产奶量及乳品质变化情况。试验结果表明，日粮中添加混菌培养物35d后试验组产奶量与对照组相比提高了1.09kg/（头·d），差异显著（P<0.05）；乳脂率、乳蛋白率、乳糖率以及乳中尿素氮含量分别提高了2.17%、1.16%、1.62%、0.71%（P>0.05）；牛奶体细胞数降低了20.80%（P<0.05）。本试验证实，添加混菌培养物可以明显提高产奶量，对乳品质有一定的改善作用。
本文研究瞭釀酒酵母與枯草芽孢桿菌雙聯混菌培養物對泌乳期荷斯坦牛產奶量及乳品質的影響。試驗選取20頭體況相近的荷斯坦泌乳牛配對分成兩組，對照組飼餵基礎日糧，試驗組另外添加1kg/（頭·d）混菌培養物，預試期7d，正試期35d，測定試驗組與對照組的產奶量及乳品質變化情況。試驗結果錶明，日糧中添加混菌培養物35d後試驗組產奶量與對照組相比提高瞭1.09kg/（頭·d），差異顯著（P<0.05）；乳脂率、乳蛋白率、乳糖率以及乳中尿素氮含量分彆提高瞭2.17%、1.16%、1.62%、0.71%（P>0.05）；牛奶體細胞數降低瞭20.80%（P<0.05）。本試驗證實，添加混菌培養物可以明顯提高產奶量，對乳品質有一定的改善作用。
본문연구료양주효모여고초아포간균쌍련혼균배양물대비유기하사탄우산내량급유품질적영향。시험선취20두체황상근적하사탄비유우배대분성량조，대조조사위기출일량，시험조령외첨가1kg/（두·d）혼균배양물，예시기7d，정시기35d，측정시험조여대조조적산내량급유품질변화정황。시험결과표명，일량중첨가혼균배양물35d후시험조산내량여대조조상비제고료1.09kg/（두·d），차이현저（P<0.05）；유지솔、유단백솔、유당솔이급유중뇨소담함량분별제고료2.17%、1.16%、1.62%、0.71%（P>0.05）；우내체세포수강저료20.80%（P<0.05）。본시험증실，첨가혼균배양물가이명현제고산내량，대유품질유일정적개선작용。
This experiment was conducted to study the effects of double mixed bacterial cultures of Brewer's yeast andBacillus subtilis on milk yield and milk quality of the period of lactation of Holstein dairy cow. Totally 20 healthy and similar body condition cows were divided into two groups in pair. The control group was fed with basal diets, and the trail group was fed with basal diets and 1kg/d mixed bacterial cultures every cows. The feeding triallasted for 42 days with 7 pre-feeding days and 35 trial days. The milk yield and milk quality of the control and trail group were determined. The results showed that: compared with the control group, after the addition of mixed bacterial cultures for 35 days, milk yield can significantly increased(P<0.05); milk fat rate, protein rate, lactose and urea nitrogen rate of trial group were increased 2.17%,1.16%,1.62%,0.71%(P>0.05); somatic reduced 20.80%(P<0.05).It concluded that the application of mixed bacterial cultures in diet of dairy cattle had good effects in promoting milk yield and improving milk quality.
