Applied Research Note: The impact of retention time during the conditioning process of a broiler starter diet on performance, apparent metabolizable energy, and apparent ileal digestibility of nutrients

IF 1.6 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Journal of Applied Poultry Research Pub Date : 2024-04-16 DOI:10.1016/j.japr.2024.100435

Joseph P. Gulizia , Abigail D. McConnell , Rachel E. Strobeck , Cecilia M. Broadwater , Eva G. Guzman , Cristina T. Simões , Jose R. Hernandez , Wilmer J. Pacheco , Kevin M. Downs

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引用次数: 0

Abstract

Understanding the influence of feed processing on early broiler growth is essential for maintaining production and increasing profit. The purpose of this research was to assess the effects of 3 retention times (RT) during the conditioning process prior to pelleting on broiler performance, AME, and apparent ileal digestibility (AID) of nutrients from 1 to 21 d of age. During 2 repeated studies, broilers were fed crumbled starter diets differing only in RT (40, 80, or 120 s). Targeted RT were achieved by utilizing a variable speed feed hygieniser. Varying RT did not influence AME during early broiler growth. Early FCR (d 7–14) was decreased with RT of 40 and 80 s compared to 120 s. Opposingly, phosphorus digestibility was observed to increase with longer RT (80 and 120 s). Overall, RT during the conditioning process did not substantially influence broiler growth nor nutrient AID during the starter phase.

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应用研究说明：肉鸡初生日粮调制过程中的停留时间对性能、表观代谢能和营养物质表观回肠消化率的影响

了解饲料加工对早期肉鸡生长的影响对维持生产和增加利润至关重要。本研究的目的是评估制粒前调理过程中的 3 个滞留时间（RT）对 1 到 21 日龄肉鸡生长性能、AME 和营养物质表观回肠消化率（AID）的影响。在两次重复研究中，肉鸡饲喂的破碎开食料仅在RT（40、80或120秒）上有所不同。通过使用变速饲料卫生器实现了目标 RT。不同的RT对肉鸡早期生长过程中的AME没有影响。与 120 秒相比，40 秒和 80 秒的 RT 会降低早期（7-14 日龄）的饲料转化率（FCR）。总之，调制过程中的实时温度对肉鸡的生长和开产阶段的养分消化率没有实质性影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Poultry Research 农林科学-奶制品与动物科学

CiteScore

4.10

自引率

10.50%

发文量

审稿时长

104 days

期刊介绍： The Journal of Applied Poultry Research (JAPR) publishes original research reports, field reports, and reviews on breeding, hatching, health and disease, layer management, meat bird processing and products, meat bird management, microbiology, food safety, nutrition, environment, sanitation, welfare, and economics. As of January 2020, JAPR will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers. The readers of JAPR are in education, extension, industry, and government, including research, teaching, administration, veterinary medicine, management, production, quality assurance, product development, and technical services. Nutritionists, breeder flock supervisors, production managers, microbiologists, laboratory personnel, food safety and sanitation managers, poultry processing managers, feed manufacturers, and egg producers use JAPR to keep up with current applied poultry research.