大颗粒大小而不是饮食复杂性增加了猪爬行食消失和食活动,但不是生长性能
Malene Hald1, Tina Skau Nielsen1, Thomas Sønderby Bruun2
1Department of Animal and Veterinary Sciences, Aarhus University, Campus Viborg, DK-8830 Tjele, Denmark.
Translational animal science
|October 10, 2025
概括
爬行料颗粒大小影响了小猪的进食行为,较大的颗粒增加了料消耗. 然而,无论是颗粒大小还是饮食复杂性,都没有影响21天后断奶的小猪在断奶前或断奶后的生长表现.
科学领域:
- 动物科学动物科学
- 猪的营养 猪的营养
- 动物行为 动物行为
背景情况:
- 爬行养对小猪的发育至关重要,影响料摄入量和生长.
- 了解料特征的影响,如颗粒大小和食复杂性,对于优化小猪的营养至关重要.
- 之前的研究已经探索了各种爬行料策略,但颗粒大小和复杂性对早期养行为和生长的综合影响需要进一步调查.
研究的目的:
- 调查爬行料颗粒大小和食复杂度对小猪断奶前料消费和饮食行为的影响.
- 评估这些饮食因素对小猪断奶前后生长表现的影响.
- 为了确定较大的颗粒体大小或更复杂的饮食是否会提高小猪的养活动和随后的生长.
主要方法:
- 180个被分配给六种治疗方法:正控 (PCON),负控 (NCON),高复杂性大颗粒 (HCLP),低复杂性小颗粒 (LCSP),低复杂性大颗粒 (LCLP) 和面包店面粉大颗粒 (BMLP).
- 监测了爬行料的消费和饮食行为 (头部在料器中,料在嘴里).
- 猪的体重和体重增加从出生到断奶 (21天) 和断奶后被记录下来.
主要成果:
- 饮食治疗没有影响断奶前的体重,体重增加或平均每日增加 (ADG).
- 与养PCON和LCSP的猪相比,养大颗粒 (HCLP,LCLP,BMLP) 的小猪消耗的爬行料显著增加,并表现出增加的进食活动.
- 断奶后,养PCON的小猪的ADG数量高于NCON,但整体生长性能没有受到颗粒大小或食复杂性的显著影响.
结论:
- 爬行料的物理形式,特别是颗粒大小,显著影响小猪养活动和消费.
- 尽管用更大的颗粒增加了养活动,但这并没有转化为更好的断奶前或断奶后生长表现.
- 饮食复杂性似乎没有影响生长表现,当小猪在21天的哺乳期被断奶时.
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