Factors Affecting Reproductive Performance of Saba Sows

LI Mingli; ZHAO Bao; LI Zhijuan; WANG Xiaoyi; YAN Dawei; REN Wenhui

doi:10.19303/j.issn.1008-0384.2020.11.011

Volume 35 Issue 11

Nov. 2020

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Article Navigation > Fujian Journal of Agricultural Sciences > 2020 > 35(11): 1252-1257

LI M L, ZHAO B, LI Z J, et al. Factors Affecting Reproductive Performance of Saba Sows [J]. Fujian Journal of Agricultural Sciences，2020，35（11）：1252−1257 doi: 10.19303/j.issn.1008-0384.2020.11.011

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LI M L, ZHAO B, LI Z J, et al. Factors Affecting Reproductive Performance of Saba Sows [J]. Fujian Journal of Agricultural Sciences，2020，35（11）：1252−1257 doi: 10.19303/j.issn.1008-0384.2020.11.011

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Factors Affecting Reproductive Performance of Saba Sows

doi: 10.19303/j.issn.1008-0384.2020.11.011

1.
College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan　650201, China
2.
Fuyuan County Livestock and Poultry Improvement Workstation of Yunnan Province, Qujing, Yunnan　655500,China
3.
Chuxiong Prefecture Pig Breeding Farm of Yunnan Province, Chuxiong, Yunnan　675000, China

Received Date: 2020-03-16
Rev Recd Date: 2020-06-24

Available Online: 2020-11-13

Publish Date: 2020-11-30

Abstract

Abstract

Objective Reproductive performance of Saba sows affected by the animal breed, parity, mating, and farrowing were investigated to explore means for improvements. Method From the 2013-2017 records maintained at Chuxiong Prefecture Pig Breeding Farm in Yunnan province on Saba sows that delivered 182 litters, Duroc×Saba sows (DS) that delivered 67 litters, and Landrace×Saba sows (LS) that delivered 67 litters, the reproductive performances of these sows were compared. The number of parities, insemination methods, and farrowing seasons of the litters by the sows were analyzed using the least square model. Result Compared with the Saba sows, DS and LS had 2.56 and 1.98, respectively, more total number born (TNB) (P＜0.01) and 2.36 and 1.99, respectively, higher number born alive (NBA) (P＜0.01) per litter. In general, the 4^th to the 6^th parities performed better than the others (P＜0.05 or P＜0.01), and the highest TNB and NBA occurred on the 6^th while the lowest on the 1^st and 9^th parities. No significant differences were found on the performance whether the sows were impregnated by natural service (NS) or artificial insemination (AI) (P＞0.05). However, farrowing in spring and summer rendered more desirable results than in autumn and winter (P＜0.05 or P＜0.01). Conclusion The reproductive performance of Saba sows could be improved by cross-breeding and/or farrowing in spring and summer in a year.
- Saba sow,
- crossed breed,
- parity,
- farrowing season,
- insemination method,
- reproductive performance

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References(21)

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