肉对不同年龄的食纤维来源的反应:对生长性能,营养素消化能力,血液参数和肠道形态的影响
Ali Asghar Kardel1, Mohammad Kazemifard1, Mansour Rezaei1
1Department of Animal Science, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
Veterinary medicine and science
|June 19, 2025
概括
食纤维来源,如大米皮和甜菜纸可以提高肉的性能. 特定的组合增强了11至42天的肉的生长和营养吸收.
科学领域:
- 动物科学动物科学
- 禽类营养 养 禽类营养
- 消化系统生理学 消化系统生理学
背景情况:
- 关于肉年龄如何影响不同纤维来源的有效性,研究有限.
- 了解纤维来源的影响对于优化家禽饮食至关重要.
- 之前的研究主要关注纤维含量,而不是特定年龄的反应.
研究的目的:
- 评估米 (RH) 和甜菜纸 (SBP) 对 brojler生长的影响.
- 为了评估不同年龄段的肉的营养消化能力,血液参数和肠道形态.
- 为了确定RH和SBP在肉饮食中包含的最佳组合和时间.
主要方法:
- 160Ross 308只雄性肉幼被分为四个饮食组.
- 饮食包括控制,RH/SBP组合,以及在种植者和完成者期间连续包含RH/SBP.
- 在24天和42天测量了生长性能,营养消化能力 (DM,OM,NDF),血液参数和阴茎形态 (VH/CD比率).
主要成果:
- 料转换比率 (FCR) 在养3%的RH (种植者) 和3%的SBP (完成者) 的肉中改善了11-24天.
- 在使用RH/SBP组合的组中,体重增加 (BWG) 从11-42天增强.
- 在接受1.5%RH和1.5%SBP混合饮食的组中,在42天后观察到最高的干物 (DM),有机物 (OM) 和中性洗剂纤维 (NDF) 消化率.
结论:
- 饮食中包括大米皮和甜菜纸可以积极影响肉的生长性能.
- 特定的纤维来源组合 (T2和T4) 改善了营养物质的消化能力和骨髓形态.
- 这些发现表明,RH和SBP的战略使用可以增强肉从11天到42天的发育.
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