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Evaluation of Dry Matter Intake and Average Daily Gain Predicted by the Cornell Net Carbohydrate and Protein System in Crossbred Growing Bulls Kept in a Traditionally Confined Feeding System in China
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 Title & Authors
Evaluation of Dry Matter Intake and Average Daily Gain Predicted by the Cornell Net Carbohydrate and Protein System in Crossbred Growing Bulls Kept in a Traditionally Confined Feeding System in China
Du, Jinping; Liang, Yi; Xin, Hangshu; Xue, Feng; Zhao, Jinshi; Ren, Liping; Meng, Qingxiang;
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 Abstract
Two separate animal trials were conducted to evaluate the coincidence of dry matter intake (DMI) and average daily gain (ADG) predicted by the Cornell Net Carbohydrate and Protein System (CNCPS) and observed actually in crossbred growing bulls kept in a traditionally confined feeding system in China. In Trial 1, 45 growing SimmentalMongolia crossbred F1 bulls were assigned to three treatments (T1-3) with 15 animals in each treatment. Trial 2 was conducted with 60 LimousinFuzhou crossbred F2 bulls allocated to 4 treatments (t1-4). All of the animals were confined in individual stalls. DMI and ADG for each bull were measured as a mean of each treatment. All of the data about animals, environment, management and feeds required by the CNCPS model were collected, and model predictions were generated for animals on each treatment. Subsequently, model-predicted DMI and ADG were compared with the actually recorded results. In the three treatments in Trial 1, 93.3, 80.0 and 73.3% of points fell within the range from -0.4 to 0.4 kg/d for DMI mean bias; similarly, in the four treatments in Trial 2, about 86.7, 73.3, 73.3 and 80.0% of points fell within the same range. These results indicate that the CNCPS model can accurately predict DMI of crossbred bulls in the traditionally confined feeding system in China. There were no significant differences between predicted and observed ADG for T1 (p
 Keywords
CNCPS Model;Dry Matter Intake;Average Daily Gain;Growing Bulls;
 Language
English
 Cited by
1.
Evaluation of a Nutrition Model in Predicting Performance of Vietnamese Cattle,;;;;;;;;

아세아태평양축산학회지, 2012. vol.25. 9, pp.1237-1247 crossref(new window)
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Evaluation of a Nutrition Model in Predicting Performance of Vietnamese Cattle, Asian-Australasian Journal of Animal Sciences, 2012, 25, 9, 1237  crossref(new windwow)
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