产卵饮食中的多蛋白酶补充:对产卵性能,蛋质量,消化能力,肠道组织形态学和可持续性的影响
Elijah Ogola Oketch1, Myunghwan Yu1, Shan Randima Nawarathne1
1Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, South Korea.
Poultry science
|March 11, 2025
概括
用多蛋白酶补充产卵母的饮食,提高了料效率和蛋质量,同时降低了的分泌和料成本. 这种酶补充增强了营养消化能力和肠道健康,从而带来更好的经济回报.
科学领域:
- 动物科学动物科学
- 禽类的营养 养
- 消化系统生理学 消化系统生理学
背景情况:
- 优化产卵的营养对于性能和经济可行性至关重要.
- 减少排泄是家禽生产中的环境和经济问题.
- 像多蛋白酶一样,酶补充也被探索以提高营养利用率.
研究的目的:
- 研究补充多蛋白酶对产卵母的表现,卵子质量和营养物质消化能力的影响.
- 评估多蛋白酶对肠道组织形态学和分泌的影响.
- 为了评估的经济表现,养的饮食减少了原蛋白和氨基酸,并补充了多蛋白酶.
主要方法:
- 189个Hy-Line棕色被养三种饮食:正控 (PC),负控 (NC - 90% CP/AA) 和NC与多蛋白酶 (NCMP).
- 测量包括表现,蛋质量,营养消化能力,肠道形态,分泌和25至37周的经济回报.
- 添加多蛋白酶的量为300g/t,提供2400U/kg.
主要成果:
- 与NC饮食相比,多蛋白酶补充剂 (NCMP) 改善了料转换率,蛋重量,豪格单位和破裂强度.
- NCMP饮食增强了原始蛋白质和氨基酸的消化能力,毛的高度和吸收表面积.
- 减少原蛋白/氨基酸饮食 (NC和NCMP) 降低了分泌和料成本,而多蛋白酶增加了投资回报.
结论:
- 减少原蛋白/氨基酸饮食的养可以维持卵产量,同时降低的分泌和料成本.
- 多蛋白酶补充剂可以增强乳腺的吸收能力和营养物质的消化能力.
- 多蛋白酶可以提高母的料效率,蛋质量和经济回报.
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