农学学报
農學學報
농학학보
Chinese Countryside Well-off Technology
2015年
3期
78-80
,共3页
陈丽丽%马毅%赵庆彬
陳麗麗%馬毅%趙慶彬
진려려%마의%조경빈
NCG%奶牛%产奶量%乳成分
NCG%奶牛%產奶量%乳成分
NCG%내우%산내량%유성분
NCG%Dairy Cattle%Milk Yield Production%Milk Composition
研究NCG对奶牛泌乳性能的影响，选取20头年龄、胎次、泌乳状况基本相同的荷斯坦奶牛随机分成2组，分别饲喂在基础日粮中添加0（试验组）和20 g/(d·头)（试验组）的NCG（N-氨甲酰谷氨酸）日粮。试验结果表明，日粮中添加NCG可使奶牛日产奶量提高0.7 kg(P<0.05)，可使每头奶牛1个泌乳期增加经济利润1088.85元；乳脂率降低显著(P<0.05)，乳蛋白率显著升高(P<0.05)。提示NCG可以通过尿素循环间接影响奶牛泌乳量及乳成分。
研究NCG對奶牛泌乳性能的影響，選取20頭年齡、胎次、泌乳狀況基本相同的荷斯坦奶牛隨機分成2組，分彆飼餵在基礎日糧中添加0（試驗組）和20 g/(d·頭)（試驗組）的NCG（N-氨甲酰穀氨痠）日糧。試驗結果錶明，日糧中添加NCG可使奶牛日產奶量提高0.7 kg(P<0.05)，可使每頭奶牛1箇泌乳期增加經濟利潤1088.85元；乳脂率降低顯著(P<0.05)，乳蛋白率顯著升高(P<0.05)。提示NCG可以通過尿素循環間接影響奶牛泌乳量及乳成分。
연구NCG대내우비유성능적영향，선취20두년령、태차、비유상황기본상동적하사탄내우수궤분성2조，분별사위재기출일량중첨가0（시험조）화20 g/(d·두)（시험조）적NCG（N-안갑선곡안산）일량。시험결과표명，일량중첨가NCG가사내우일산내량제고0.7 kg(P<0.05)，가사매두내우1개비유기증가경제리윤1088.85원；유지솔강저현저(P<0.05)，유단백솔현저승고(P<0.05)。제시NCG가이통과뇨소순배간접영향내우비유량급유성분。
20 Chinese Holstein cows of basically the same condition at age and lactation were selected, randomly divided into 2 groups of 10 cows. This experiment was assigned to 2 dietary treatments:control group (0%) and NCG group (20 g/d) to study the effects of N-carbonyl glutamic acid added into dairy diet on yield of dairy cattle. The results indicated that the milk production and milk protein rate of the NCG group was higher than that of the control group;the fat in every milk samples was lower. The economic return of the NCG group was higher than that of the control group. It could be concluded that NCG could indirectly affect milk yield and components of milk by urea cycle.
