杂交猪繁殖性能的影响因素分析

Abstract

Abstract: In this study, analysis of variance models of SPSS software were used to analyze the effect of different factors such as year, season, parity, birth, and cross mode on crossbred pigs reproductive performance. The following results showed that year gave a significant effect on numbers of piglets born alive and numbers of piglets at weaning (P＜0.01), but no significant effect on numbers of total-piglets (P＞0.05). Season gave a significant effect on numbers of piglets born alive and numbers of piglets at weaning(P＜0.01), and a significant effect on numbers of total-piglets(P＜0.05). Parity gave a significant effect on numbers of piglets at weaning and birth weight(P＜0.01), and gave a significant effect on numbers of piglets born alive and birth litter weight (P＜0.05). Birth weight of hog was significant higher that of sow (P＜0.05). Cross mode gave no significant effect on numbers of total-piglets,numbers of piglets born alive,numbers of piglets an weaning,birth litter weight and birth weight(P＞0.05).

Key words: crossbred pig; reproductive performance; influence factor

CLC Number:

S814

ZHANG Sheng-lin;BAI Jun-yan;PANG You-zhi;LI Gang;LI Shuai-xiang. Analysis on Factors Affecting of Reproductive Performance in Crossbred Pigs[J]. , 2011, 38(7): 144-148.

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Analysis on Factors Affecting of Reproductive Performance in Crossbred Pigs

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