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Energy value of dry fat and stabilised rice bran for broiler chickens
British Poultry Science ( IF 2 ) Pub Date : 2021-07-12 , DOI: 10.1080/00071668.2021.1940863
O T Osunbami 1 , A S Aderibigbe 1 , O Adeola 1
Affiliation  

ABSTRACT

1. The ileal digestible energy (IDE), metabolisable energy (ME) and nitrogen-corrected ME (MEn) of dry fat (DF) and stabilised rice bran (SRB) were determined in two experiments with broiler chickens using the regression method.

2. Chickens were fed a common broiler starter diet from d 0 to 17 and experimental diets from d 17 to 22 post hatching. Three diets were prepared; a maize-soybean meal reference diet (RD) and two test diets containing either DF at 50 or 100 g/kg replacement (Experiment 1) or SRB at 100 or 200 g/kg replacement (Experiment 2) of the energy-contributing ingredients in the RD. In each experiment, 192 chickens were randomly allocated to one of three dietary treatments in a randomised complete block design, comprising eight replicate cages with eight birds per cage.

3. In Experiment 1, the IDE, ME and MEn linearly increased (P < 0.001) with increasing DF concentrations, while in Experiment 2, the IDE, ME and MEn of the diets were not affected by dietary supplemental SRB. The regression-derived IDE concentration for DF and SRB were 25.30 and 14.88 MJ/kg DM, respectively. The respective ME and MEn estimates (MJ/kg DM) were 25.32 and 24.78 for DF; 14.38 and 13.36 for SRB.

4. In conclusion, the current data showed that broiler chickens utilised between 77% and 79% and 68% to 76% of the gross energy (GE) in DF and SRB, respectively, and this suggested a strong potential for these ingredients as dietary energy sources for broiler chickens.



中文翻译:

肉鸡干脂肪和稳定米糠的能量值

摘要

1. 采用回归法在肉鸡的两个实验中测定了干脂肪(DF)和稳定米糠(SRB)的回肠消化能(IDE)、代谢能(ME)和氮校正代谢能(MEn)。

2. 鸡在孵化后第 0 至 17 天喂食普通的肉鸡开食料和从第 17 天到 22 天的试验性饲料。准备了三种饮食;玉米-豆粕参考日粮 (RD) 和两种测试日粮,其中含有 50 或 100 g/kg 替代品(实验 1)的 DF 或 100 或 200 g/kg 替代品(实验 2)中的能量贡献成分的 SRB研发。在每个实验中,192 只鸡被随机分配到随机完整区组设计中的三种饮食处理中的一种,包括八个重复的笼子,每个笼子有八只鸡。

3. 在实验 1 中,IDE、ME 和 MEn 随着 DF 浓度的增加呈线性增加(P < 0.001),而在实验 2 中,日粮的 IDE、ME 和 MEn 不受日粮添加 SRB 的影响。DF 和 SRB 的回归得出的 IDE 浓度分别为 25.30 和 14.88 MJ/kg DM。DF 的 ME 和 MEn 估计值(MJ/kg DM)分别为 25.32 和 24.78;SRB 为 14.38 和 13.36。

4. 总之,目前的数据显示,肉鸡在 DF 和 SRB 中分别使用了 77% 至 79% 和 68% 至 76% 的总能量 (GE),这表明这些成分作为日粮具有很大的潜力肉鸡的能源。

更新日期:2021-07-12
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