本文選題：CNCPS模型 + 安格斯生長(zhǎng)牛　； 參考：《黑龍江畜牧獸醫(yī)》2017年03期

【摘要】：為了比較康奈爾凈碳水化合物和蛋白系統(tǒng)(CNCPS)模型預(yù)測(cè)的安格斯生長(zhǎng)牛干物質(zhì)采食量和平均日增重與實(shí)測(cè)值的相近程度,試驗(yàn)采用隨機(jī)分組(1組為對(duì)照組,2組為添加蛋氨酸組)的方法,測(cè)定了安格斯生長(zhǎng)牛的實(shí)際采食量和平均日增重。結(jié)果表明:1)兩組牛的干物質(zhì)采食量分別有86.7%和86.7%的點(diǎn)落在95%的置信區(qū)間內(nèi);兩組牛的平均日增重分別有80.0%和73.3%的點(diǎn)落在95%的置信區(qū)間內(nèi);兩組牛干物質(zhì)采食量和平均日增重的預(yù)測(cè)值與實(shí)測(cè)值均差異不顯著(P0.05)。2)經(jīng)線性回歸分析,兩組牛的干物質(zhì)采食量實(shí)測(cè)值和預(yù)測(cè)值有較高的相關(guān)系數(shù)(0.892 9和0.812 1),兩組牛的平均日增重實(shí)測(cè)值和預(yù)測(cè)值有較高的相關(guān)系數(shù)(0.862 2和0.765 0),均具有較高的相似度。說(shuō)明CNCPS模型對(duì)安格斯生長(zhǎng)牛干物質(zhì)采食量和平均日增重具有較好的預(yù)測(cè)能力。
[Abstract]:To compare the predicted dry matter intake and average daily gain (ADG) of Angus growth cattle with the CNCPS model of Cornell net carbohydrate and protein system, The actual feed intake and average daily gain (ADG) of Angus growing cattle were measured by using the method of random grouping 1 group as control group and adding methionine group 2 as control group. The results showed that the dry matter intake of the two groups was 86.7% and 86.7%, respectively, and the average daily gain of the two groups was 80.0% and 73.3%, respectively, and the average daily gain of the two groups fell within the 95% confidence interval. The predicted values of dry matter intake and average daily gain of the two groups were not significantly different from the measured values by linear regression analysis. The measured and predicted dry matter intake values of the two groups had high correlation coefficients of 0.892 9 and 0.812 1g, and the average daily gain measured values and predicted values of the two groups had higher correlation coefficients (0.862 2 and 0.765 0), both of which had high similarity. CNCPS model can predict dry matter intake and average daily gain of Angus growth cattle.
【作者單位】： 石河子大學(xué)動(dòng)物科技學(xué)院;新疆西部牧業(yè)股份有限公司;
【分類號(hào)】：S823;;S818.9

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