卫生饲料生产策略可提高制粒效率，同时保持火鸡早期的生长性能和胫骨矿化度

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

Journal of Applied Poultry Research Pub Date : 2024-09-18 DOI:10.1016/j.japr.2024.100487

C.M. Poholsky , J.S. Moritz , J.W. Boney

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引用次数: 0

摘要

饲料生产策略会影响饲料卫生、制粒效率、颗粒质量和营养供应，最终影响火鸡的生产性能。为了确定饲料生产策略对制粒效率、火鸡生产性能和胫骨矿化的影响，我们进行了两项实验。实验 1 采用的是普通商用日粮。粉碎饲料采用标准（STD）或卫生（HYG）生产策略。STD 生产策略使用 76.7°C 的蒸汽调节 15 秒，而 HYG 生产策略使用 85°C 的蒸汽调节 15 秒，并在 82.2°C 的卫生器中停留 45 秒。实验 2 将颗粒饲料粉碎后喂给火鸡。第 1-28 天，共有 1320 只杂交转换母火鸡被饲养在地板围栏中。第 28 天，每栏随机挑选 3 只小火鸡进行胫骨切除和灰化。两项实验均使用 SAS 的 GLM 程序进行单因子方差分析。在实验 1 中，HYG 生产降低了制粒机的电机负荷（P < 0.001），并将热颗粒温度提高了 6.1°C（P = 0.004）。采用 HYG 制粒工艺可提高颗粒耐久性（P < 0.05）。生产策略不会影响植酸酶活性的恢复（P = 0.989）。在实验 2 中，雏鸡的表现不受生产策略的影响（P > 0.05）。此外，生产策略也不会影响胫骨矿化度（P = 0.150）。总之，HYG 生产策略在不影响植酸酶活性的情况下提高了研磨效率和颗粒耐久性。最终，当火鸡在 28 日龄内食用我们定义的 HYG 生产条件下生产的饲料时，火鸡的生产性能和胫骨矿化度均得以保持。

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Hygienic feed manufacturing strategies improve pelleting efficiency while maintaining early turkey poult performance and tibia mineralization

Feed manufacturing strategies affect feed hygiene, pelleting efficiency, pellet quality, and nutrient availability, ultimately impacting turkey performance. Two experiments were conducted to determine the effect of feed manufacturing strategy on pelleting efficiency, poult performance, and tibia mineralization. A common commercial diet was utilized in Experiment 1. Mash feed was subjected to either a standard (STD) or a hygienic (HYG) manufacturing strategy. The STD manufacturing strategy used 76.7°C steam conditioning for 15 s while the HYG manufacturing strategy used 85°C steam conditioning for 15 s with a 45 s retention time in a hygienizer at 82.2°C. Pelleted feed was crumbled and fed to turkeys in Experiment 2. A total of 1,320 Hybrid Converter hen poults were housed in floor pens from d 1-28. On d 28, 3 poults per pen were randomly selected for tibia excision and ashing. One-way ANOVA tests were performed for both experiments using the GLM procedure of SAS. In Experiment 1, HYG manufacturing reduced pellet mill motor load (P < 0.001) and increased hot pellet temperature by 6.1°C (P = 0.004). Pellet durability improved with HYG manufacturing (P < 0.05). Manufacturing strategy did not impact phytase activity recovery (P = 0.989). In Experiment 2, poult performance was not influenced by manufacturing strategy (P > 0.05). Furthermore, manufacturing strategy did not impact tibia mineralization (P = 0.150). In conclusion, the HYG manufacturing strategy improved milling efficiency and pellet durability, without jeopardizing phytase activity. Ultimately, turkey poult performance and tibia mineralization were maintained through 28 d of age when consuming feed manufactured with our defined HYG manufacturing conditions.

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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.