放松肉养殖者生长限制是否具有成本效益?
M Afrouziyeh1, V L Carney1, M J Zuidhof1
1Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada.
Poultry science
|September 28, 2023
概括
通过增加青春期前体重增加和推进青春期生长,放松 brojiler breeders 的料限制可以提高经济回报. 这种战略性增长曲线提高了卵生产商和整个肉供应链的利能力.
科学领域:
- 动物科学动物科学
- 养家禽生产 养家禽生产
- 农业经济学 农业经济学
背景情况:
- 目前对 brojiler 养殖者的料限制计划可能导致严重的生长限制,影响养殖者福利和生殖性能.
- 之前的研究探讨了战略增长曲线,并放松了限制以减轻这些问题.
- 本研究重点关注这些修改后的增长战略对经济的影响.
研究的目的:
- 调查实施新型 brojiler breeder增长曲线的经济方面.
- 评估放松的青春期前生长限制和晚期青春期生长时间对利能力的影响.
- 为了确定卵生产商和更广泛的肉供应链的经济效益.
主要方法:
- 利用部分预算分析来评估经济结果.
- 通过使用精密养系统,比较了 10 种不同的肉养殖母的目标生长轨迹.
- 从修改的母体生长曲线对后代生长和发育的评估代际影响.
主要成果:
- 一个特定的生长曲线 (10%更高的青春期前BW增长,20%的青春期前期生长时间) 增加了生产商的料和小成本的利率CDN$1.97/母.
- 在整个肉供应链中,在42周大的母中,通过这种修改后的母生长情景 (情景10) 实现了对料和子成本的最高差异利.
- 这种情景在料和小成本上产生了更大的利率,而与 35 周大的母的育种商推的母生长率相比,活的生长率为 0.1053 美元/公斤.
结论:
- 实施放宽生长限制,特别是增加青春期前体重增加和推进青春期生长,在经济上是有益的.
- 经过测试的战略增长曲线为严格的料限制提供了可行的替代方案,提高了生产商和供应链的利能力.
- 优化的母体生长曲线对肉生产的经济效率作出了积极的贡献.
相关概念视频
Oxygen Requirements and Growth Patterns
37
Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the terminal...
37
Energy Budgets
9.3K
Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
9.3K


