湘村黑猪各阶段营养需求参数研究

doi:10.11843/j.issn.0366-6964.2013.09.010

Abstract

Abstract:

This experiment was conducted to study the quantitative relation model between the nutrient requirement and growth performance of Xiangcun Black pig at different growth phases. According to the uniform design U8*(8⁵), the experiment took crude protein(CP),lysine(Lys) and total phosphorus(TP) as three factors and set eight levels. The experiment was divided into 10-30,30-60,60-90 kg three growth phases based on physiological characteristics of Xiangcun Black pig. In each stage, forty eight Xiangcun Black barrows with approximate initial weight (10.08±0.49)，(30.07±0.73) and (59.96±0.83) kg were selected, which were randomly divided into eight treatment groups with six replicates per treatment group and one Xiangcun Black pig per replicate. The results showed that, except the TP requirement of Xiangcun Black pig in 30-60 and 60-90 kg stage, requirement of three nutrient factors was lower than recommended requirement of China Feeding Standard of Swine. The best growth performance of Xiangcun Black pig was obtained when the optimum combination of the three factors was CP 17.18%, Lys 0.90%,TP 0.56% at 10-30 kg stage with 0.48 kg·d^-1 for daily gain and 2.58 for feed conversion rate, CP 15.84%, Lys 0.79%,TP 0.52% at 30-60 kg stage with 0.68 kg·d^-1 for daily gain and 2.97 for feed conversion rate, CP 13.74%,Lys 0.68%,TP 0.47% at 60-90 kg stage with 0.77 kg·d^-1 for daily gain and 3.60 for feed conversion rate. The experiment also showed that CP was the most important factor to average daily gain(ADG) and Lys was the most important factor to feed conversion ratio(FCR). In conclusion, nutrient requirement of Xiangcun Black pig is different from other feeding standard of swine，and further research is needed for nutrients in addition to CP, Lys amd TP.

CLC Number:

S828
S813.3

YANG Yong-sheng, XIE Hong-bing, LIU Li-li, JIANG Bi-bo, YU Qi-fang, HE Jian-hua. Study on Nutrient Requirement of Xiangcun Black Pig at Different Growth Stages[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2013, 44(9): 1400-1410.

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Study on Nutrient Requirement of Xiangcun Black Pig at Different Growth Stages

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