细化羊羔的生长监测:针对有针对性的选择性治疗的动态生长曲线建模方法
Saulo Henrique Weber1, Kassy Gomes da Silva2, Diógenes Adriano Duarte Santana2
1Graduate Program in Animal Science, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná (PUCPR), Curitiba, Paraná, Brazil. saulo.weber@pucpr.br.
Tropical animal health and production
|November 21, 2025
概括
一个新的动态生长曲线准确监测单个羔羊的生长,改善寄生虫感染的有针对性的选择性治疗 (TST). 这种方法增强了早期发现生长问题的能力,提高了牲畜生产率和动物健康.
科学领域:
- 动物科学动物科学
- 兽医寄生虫学 兽医寄生虫学
- 农业工程 农业工程
背景情况:
- 传统的羊羔生长监测通常使用群体平均值,可能掩盖个体变异并推迟及时的健康干预.
- 针对胃肠道线虫的有针对性的选择性治疗 (TST) 对于优化羊的健康和生产率至关重要.
- 现有的生长模型可能无法充分捕捉个体羔羊的生长动态,以提供有效的TST指导.
研究的目的:
- 开发和验证一个新的个性化动态生长曲线,用于羔羊.
- 为了比较动态增长曲线与传统群体水平曲线的有效性,以指导TST.
- 评估动态生长建模对早期发现生长障碍和寄生虫感染的影响.
主要方法:
- 根据理查德的模型,安装了一个原始的群体水平增长曲线.
- 开发了一个动态的生长曲线,调整到每个羔羊的以前体重,保持群体特定的生长模式.
- 分析了18只羔羊 (26-221天) 的296个活体体重和130个便卵数 (FEC).
主要成果:
- 动态增长曲线显著降低了平均百分比残留量,从 -22% (原始) 降至 -1% (动态),表明精度有所提高.
- 通过治疗的动态曲线识别的羔羊与未接受治疗的羔羊 (平均565) 相比,FEC显著更高 (平均1613).
- 动态曲线表现出更好地代表了群体和单个羔羊的生长模式.
结论:
- 动态生长曲线增强了与羊寄生虫感染相关的生长障碍的早期检测.
- 这种个性化的方法可以实现更有针对性和有效的TST策略.
- 动态增长建模为畜牧系统的提高生产率和动物健康提供了潜力.
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