Spray dried plasma protein improves digestibility in chick starter diets

IF 1.6 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE Journal of Applied Poultry Research Pub Date : 2024-09-17 DOI:10.1016/j.japr.2024.100488

L.E. Russell , J.M. Campbell , J. Polo , C.M. Parsons

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Abstract

This experiment was designed to determine the effect of spray dried animal plasma (SDAP) on digestibility of a corn-soybean meal diet in Ross 308 male broiler chicks. Two corn-soybean meal diets were formulated, a Control diet and one with 2% SDAP. Treatment (Trt) 1 and 2 were fed the Control and SDAP diet for 10 d while Trt 3 and 4 were fed the Control and SDAP diet for 21 d. Growth performance and nutrient digestibility was determined at 10 d and 21 d. By d 21, dietary treatment did not affect (P > 0.10) growth performance (BW, FI, G/F). At both 10 d and 21 d, SDAP improved (P < 0.05) digestibility of AMEn, DM and organic matter (OM). Digestibility of EE was reduced (P < 0.05) on d10 but not (P > 0.10) on d21. The addition of SDAP improved (P < 0.05) Cys digestibility on d 10 while on d 21 the addition of SDAP improved digestibility of Pro, Ala, Cys, Leu, Thr, Trp, Tyr, Val (P < 0.05) and Ser (P < 0.10). Previously published amino acid digestibility coefficients (determined in 21 d chicks) for individual ingredients (corn, soybean meal and SDAP) were used to calculate expected AA digestibility of the experimental diets and then compared to 21 d digestibility coefficients measured in the current experiment. Cystine digestibility (21 d) in the SDAP fed chicks was greater (P < 0.10) than that expected based on digestibility coefficients of individual ingredients. These data demonstrate that SDAP is a highly digestible ingredient in broiler chick diets, and it may improve digestibility of a corn-soybean meal diet fed to broiler chicks.

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喷雾干燥血浆蛋白可提高雏鸡初生日粮的消化率

本实验旨在确定喷雾干燥动物血浆（SDAP）对 Ross 308 雄性肉鸡玉米-豆粕日粮消化率的影响。试验配制了两种玉米-豆粕日粮，一种是对照日粮，另一种是含有 2% SDAP 的日粮。第 21 天时，日粮处理对生长性能（体重、FI、G/F）没有影响（P > 0.10）。在 10 d 和 21 d，SDAP 提高了 AMEn、DM 和有机物（OM）的消化率（P < 0.05）。EE的消化率在第10 d降低（P <0.05），但在第21 d没有降低（P >0.10）。添加 SDAP 可提高第 10 天 Cys 的消化率（P < 0.05），而在第 21 天，添加 SDAP 可提高 Pro、Ala、Cys、Leu、Thr、Trp、Tyr、Val（P < 0.05）和 Ser（P < 0.10）的消化率。之前公布的单个原料（玉米、豆粕和 SDAP）的氨基酸消化率系数（在 21 d 小鸡中测定）用于计算实验日粮的预期 AA 消化率，然后与当前实验中测定的 21 d 消化率系数进行比较。饲喂 SDAP 的雏鸡（21 d）的胱氨酸消化率（P < 0.10）高于根据单个成分的消化率系数预计的胱氨酸消化率。这些数据表明，SDAP 是肉用仔鸡日粮中的一种高消化率成分，它可以提高饲喂肉用仔鸡的玉米-豆粕日粮的消化率。

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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.