选择体重100～110 kg的杜长大商品猪68头,进行了不同运输时间对猪肉质性状及血液生化指标的影响研究。结果表明:运输4 h的试验1组猪的肉大理石纹、24 h大理石纹、24 h a值、24 h b值均极显著高于运输2 h的试验2组猪的,2组猪的电导率极...选择体重100～110 kg的杜长大商品猪68头,进行了不同运输时间对猪肉质性状及血液生化指标的影响研究。结果表明:运输4 h的试验1组猪的肉大理石纹、24 h大理石纹、24 h a值、24 h b值均极显著高于运输2 h的试验2组猪的,2组猪的电导率极显著高于1组猪的;装运前及运输后采血,试验2组的血清丙二醛、皮质醇、肌酸激酶、白细胞介素-1β、肿瘤坏死因子、结合珠蛋白、去甲肾上腺素、多巴胺极显著或显著高于试验1组的;屠宰时采血,试验2组的血清丙二醛、白细胞介素-1β、肿瘤坏死因子、结合珠蛋白、去甲肾上腺素、肾上腺素极显著高于试验1组的,而试验1组的总抗氧化能力、皮质醇、促肾上腺皮质激素、多巴胺极显著或显著高于试验2组的。展开更多
[ Objective] To study the effect of feed intake characteristic on growth performance in Luyu - Duroc and Yorkshire. [ Method] 89 Luyu - Yorkshire and 82 Luyu -Duroc were chosed and fed in the automatic determination s...[ Objective] To study the effect of feed intake characteristic on growth performance in Luyu - Duroc and Yorkshire. [ Method] 89 Luyu - Yorkshire and 82 Luyu -Duroc were chosed and fed in the automatic determination system for swine production, 24h real-time monitoring feed in- take traits and growth performance, [ Result] It showed that： as feed intake increased, average daily gain （ADG） and weight of 4 months were en- hanced, days on test, feed conversion ratio （FCR） and age-corrected of weight at 100 kg were reduced, feed intake positively regulated growth performance of Luyu -Doroc and Yorkshire. Feed intake significantly impacted ADG and days on test （P 〈0.01 ）, notably affected age-corrected of weight at 100 kg of Luyu - Duroc and FCR of Luyu - Yorkshire （ P〈 0.05）, variation tendency of feed frequency was consistent with feed intake and feed time, and the correlation was significant. [ Conclusion] The correlation between feed intake traits and growth performance was mainly caused by feed intake, ADG and FCR, however, predictability of feed intake was stronger than ADG and FCR, so in the actual selection feed intake was increased in pig breeding, thus at the same time to enhance ADG and to reduce FCR.展开更多
文摘选择体重100～110 kg的杜长大商品猪68头,进行了不同运输时间对猪肉质性状及血液生化指标的影响研究。结果表明:运输4 h的试验1组猪的肉大理石纹、24 h大理石纹、24 h a值、24 h b值均极显著高于运输2 h的试验2组猪的,2组猪的电导率极显著高于1组猪的;装运前及运输后采血,试验2组的血清丙二醛、皮质醇、肌酸激酶、白细胞介素-1β、肿瘤坏死因子、结合珠蛋白、去甲肾上腺素、多巴胺极显著或显著高于试验1组的;屠宰时采血,试验2组的血清丙二醛、白细胞介素-1β、肿瘤坏死因子、结合珠蛋白、去甲肾上腺素、肾上腺素极显著高于试验1组的,而试验1组的总抗氧化能力、皮质醇、促肾上腺皮质激素、多巴胺极显著或显著高于试验2组的。
基金supported by the Agricultural Elite Project of Shandong Province (2010LZ013-02)the National Pig Industry Technology System (CARS-36)
文摘[ Objective] To study the effect of feed intake characteristic on growth performance in Luyu - Duroc and Yorkshire. [ Method] 89 Luyu - Yorkshire and 82 Luyu -Duroc were chosed and fed in the automatic determination system for swine production, 24h real-time monitoring feed in- take traits and growth performance, [ Result] It showed that： as feed intake increased, average daily gain （ADG） and weight of 4 months were en- hanced, days on test, feed conversion ratio （FCR） and age-corrected of weight at 100 kg were reduced, feed intake positively regulated growth performance of Luyu -Doroc and Yorkshire. Feed intake significantly impacted ADG and days on test （P 〈0.01 ）, notably affected age-corrected of weight at 100 kg of Luyu - Duroc and FCR of Luyu - Yorkshire （ P〈 0.05）, variation tendency of feed frequency was consistent with feed intake and feed time, and the correlation was significant. [ Conclusion] The correlation between feed intake traits and growth performance was mainly caused by feed intake, ADG and FCR, however, predictability of feed intake was stronger than ADG and FCR, so in the actual selection feed intake was increased in pig breeding, thus at the same time to enhance ADG and to reduce FCR.
