Claw lesions in female pigs associated with culling risk, behavior, and reproductive performance on commercial farms

母猪爪部病变与商业农场的扑杀风险、行为和繁殖性能相关

• 批准号: 20580345
• 负责人: KOKETSU Yuzo
• 金额: $ 2.16万
• 依托单位: Meiji University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20580345/
• 关键词: 蹄; 外傷; 損傷; 行動; 繁殖成績; farm animal welfare; 獣医疫学; 行動学; 繁殖生産性; 動物福祉; 群健康管理

Claw lesions in sows on 3 commercial farms were assessed in 7 areas of each of a sow’s 8 claws to investigate the relationship between claw lesions. In addition, the relationships between claw lesions and postural behavior, reproductive performance or culling risk were investigated. We used a 5-point score method (0, 1, 2, 3 or 4) for each claw area. The highest claw lesion score for each sow was defined as the highest claw lesion score (HCLS) recorded in the 56 claw areas. Of the 308 sows observed, proportions of sows with HCLS 0, 1, 2, 3 and 4 were 0.0, 43.5, 50.6, 4.9 and 1.0%, respectively. No differences were found between HCLS groups for overall culling risk after weaning (P > 0.10). There were no differences between TSLS groups for adjusted 21-day litter weight, preweaning mortality or weaning-to-first-mating interval (P > 0.10). No differences were found between HCLS groups for the sow performance (P > 0.10). There were no differences between HCLS groups for postural behvior (P >0.10). Additionally, Risk factors for claw lesions identified in the present project were latepregnancy and high parity and perpendicular slatted floors.

在3个商业农场的母猪的8个爪中的每个爪的7个区域中评估爪病变，以研究爪病变之间的关系。此外，爪病变与姿势行为，繁殖性能或淘汰风险之间的关系进行了研究。我们对每个爪区域使用5分评分法（0、1、2、3或4）。每头母猪的最高爪病变评分定义为56个爪区域中记录的最高爪病变评分（HCLS）。在观察的308头母猪中，HCLS 0、1、2、3和4的母猪比例分别为0.0、43.5、50.6、4.9和1.0%。断奶后HCLS组间总体淘汰风险无差异（P > 0.10）。TSLS组间的校正21日龄窝重、断奶前死亡率和断奶至首次交配间隔均无差异（P > 0.10）。HCLS组间母猪生产性能无差异（P > 0.10）。HCLS组间体位行为无显著性差异（P >0.10）。此外，本研究中确定的爪病变的危险因素是妊娠晚期、高产次和垂直的板条地板。

项目成果

A field study of the relationship between leg structure scores and survivability, backfat thickness and behavior in stalled females.

对停产雌性腿部结构评分与生存能力、背膘厚度和行为之间关系的实地研究。

• 发表时间: 2009
• 期刊: Journal of Veterinary Epidemiology. 13
• 作者: Kaneko;M.;Sasaki;Y.;Takai;Y.;Koketsu;Y.
• 通讯作者: Y.

A field study of the relationships between behavior, lifetime reproductive performance and salivary cortisol in stalled gestating female pigs.

对停产妊娠母猪的行为、终生繁殖性能和唾液皮质醇之间关系的现场研究。

• 发表时间: 2008
• 期刊: Journal of Veterinary Epidemiology. 12
• 作者: Sekiguchi;T.;Koketsu;Y.
• 通讯作者: Y.

Associations between claw lesions, reproductive performance, longevity, and postural behavior in prefarrowing female pigs and lactating sows on commercial farms

商业农场产前母猪和哺乳母猪的爪部病变、繁殖性能、寿命和姿势行为之间的关联

• 发表时间: 2008
• 作者: Enokida;M.;Sasaki;Y.;Hoshino;Y.;Saito;H.;Takai;Y. and Koketsu;Y
• 通讯作者: Y

Low Lifetime Efficiency Sows in Low Parity Were Culled Due to Reproductive Failure in Commercial Herds

由于商业猪群繁殖失败，终生效率低、胎次低的母猪被淘汰

• 发表时间: 2012
• 期刊: Journal of Veterinary Epidemiology
• 作者: Kaneko;M.
• 通讯作者: M.

Euthanasia for gilts and sows on Japanese swine farms.

日本养猪场对后备母猪和母猪实施安乐死。

• 发表时间: 2010
• 期刊: Journal of Veterinary Epidemiology. 14
• 作者: Sasaki;Y.;Koketsu;Y.
• 通讯作者: Y.