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Effect of Enrichment Items on the Physiology and Behavior of Sows in the Third Trimester of Pregnancy

文献类型： 外文期刊

作者： Li, Shuangshuang 1 ; Hu, Hongqing 1 ; Huang, Jian 1 ; Yang, Yuxuan 1 ; Xu, Weijing 1 ; Chen, Junfeng 4 ; Wan, Jiawei 1 ; Li, Lianghua 5 ; Zheng, Rong 1 ; Jiang, Siwen 1 ; Chai, Jin 1 ;

作者机构： 1.Huazhong Agr Univ, Agr Minist, Key Lab Swine Breeding & Genet, Wuhan 430070, Peoples R China

2.Huazhong Agr Univ, Key Lab Agr Anim Genet Breeding & Reprod, Minist Educ, Wuhan 430070, Peoples R China

3.Cooperat Innovat Ctr Sustainable Pig Prod, Wuhan 430070, Peoples R China

4.Henan Acad Agr Sci, Inst Anim Husb & Vet Sci, Henan Key Lab Farm Anim Breeding & Nutr Regulat, Zhengzhou 450002, Peoples R China

5.Hubei Acad Agr Sci, Inst Anim Husb & Vet Med, Wuhan 430064, Peoples R China

关键词： confinement stalls; environmental enrichment; behavior; physiology; reproductive

期刊名称：ANIMALS （ 影响因子：3.231； 五年影响因子：3.312 ）

ISSN： 2076-2615

年卷期： 2022 年 12 卷 11 期

页码：

收录情况： SCI

摘要： Simple Summary Environmental enrichment can mitigate the damage to animal welfare induced by modern intensive pig farming practices, especially when pregnant sows are raised in confined stalls. This study investigated the effects of enrichment items (such as adding pine and scented wood in confinement stalls) on the physiology and behavior of sows during late gestation. Adding both pine and scented wood in confinement stalls was shown to alleviate chronic stress and stereotypical behavior of sows, suggesting their potential as an interesting and feasible way to reduce welfare compromise. Modern intensive pig breeding harms animal welfare, which is especially noticeable for pregnant sows kept in confinement stalls. This study aimed to evaluate the effects of enrichment items on the movement and physiological parameters of sows in the third trimester of pregnancy. A total of 30 large white pregnant sows were randomly divided into three equal treatment groups (n = 10): control, pine wood, and scented wood groups. Interestingly, compared with the control group, the sows in the pine wood or scented wood groups showed less ventral lying and more lateral lying behavior (p < 0.01), coupled with significant reduction in the frequency of scratching and sham-chewing (p < 0.01), but with no significant difference in the degree of preference for these enrichment items (p > 0.05). Additionally, the sows in the pine wood or scented wood groups also decreased significantly in the concentration of immunoglobulin A (IgA) (p < 0.01) and the concentration of tumor necrosis factor-alpha (TNF-alpha) (p < 0.05) throughout the late pregnancy period. Overall, adding enrichment items to confinement stalls can alleviate the chronic stress and the stereotypic behavior of sows, suggesting their potential to reduce welfare compromise.

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