2种方法估计10～20 kg湘村黑猪能量需要量  

Energy Requirement for 10 to 20 kg Xiangcun Black-Haired Pigs Estimated by Two Methods

作　　者：江碧波[1] 禹琪芳[1] 姚爽[1] 杨永生[1] 贺建华[1] 

机构地区：[1]湖南农业大学动物科技学院,长沙410128

出　　处：《动物营养学报》2014年第8期2335-2341,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：湖南省生猪产业体系专项

摘　　要：本研究旨在建立湘村黑猪能量需要量的数学模型，研究10～20kg湘村黑猪的能量需要量，为制订湘村黑猪饲养标准提供部分技术参数。选用湘村黑猪（阉公猪）42头，采用梯度饲养试验（线性回归法）和比较屠宰试验，对10～20kg湘村黑猪能量沉积代谢规律进行研究。结果表明：1）比较屠宰试验测得10～20kg湘村黑猪代谢能（ME）维持需要量为406．01kJ/（W0．75·d），总的ME需要量模型为：ME（kJ/d）＝406．01W0．75（kg）＋12．99△W（g/d）；2）线性回归法建立的10～20kg湘村黑猪ME需要量的估计模型为：ME（kJ/d）＝230．76W0．75（kg）＋19．40△W（g/d）；3）10～20kg湘村黑猪消化能转化率为94．22％。经分析和比较，建议10～20kg湘村黑猪ME维持需要量为406．01kJ/（W0．75·d）。This experiment was conducted to establish relevant mathematical model for estimating energy re-quirement for 10 to 20 kg Xiangcun black-haired pigs,and offer technical parameters to formulate breeding standard for Xiangcun black-haired pigs. A total of 42 Xiangcun black-haired pigs（ barrow）were selected to study the energy deposition and metabolism using a gradient feed intake feeding trial（ linear regression）and a comparative slaughtering test. The results showed as follows：1）results from the comparative slaughtering test indicated that the maintenance metabolizable energy（ ME）requirement for 10 to 20 kg Xiangcun black-haired pigs was 406.01 kJ/（W0.75·d）,and the mathematical model for total ME requirement prediction was ME （ kJ/d）=406.01W0.75（ kg）＋12.99△W（ g/d）;2）while the estimation mathematical model established by line-ar regression for the ME requirement for 10 to 20 kg Xiangcun black-haired pigs was ME （ kJ/d ）=230.76W0.75（kg）＋19.40△W（g/d）;3）the digestive energy conversion efficiency of 10 to 20 kg Xiangcun black-haired pigs was 94.22%. Based on the above results,it is suggested that the maintenance requirement of ME for 10 to 20 kg Xiangcun black-haired pigs is 406.01kJ/（W0.75·d）.

关 键 词：湘村黑猪 能量需要量 线性回归 比较屠宰 

分 类 号：S828[农业科学—畜牧学]