PRODUCTIVE AND PHYSIOLOGICAL RESPONSE OF BROILER CHICKS TO DIETARY HUMIC ACID

Egyptian Poultry Science Journal Pub Date : 2022-06-30 DOI:10.21608/epsj.2022.249542

A. Elnaggar, Waleed Eltahawy, Asmaa Ghalwash, A. Ghazalah

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引用次数: 2

Abstract

: An experiment was carried out to investigate the effect of dietary humic acid supplementation on performance of broiler chicks. One hundred and eighty Arbor Acers broiler chicks were assigned equally into five treatment groups. Humic acid was supplemented to basal diet 0 (control), 1.00, 2.00, 3.00 and 4.00 g/kg respectively. Chicks fed diet with different levels of humic acid had significantly (P<0.05) greater production performance than the control group. Humic acid had significantly improved the digestibility of crude protein and either extract. Feeding diet with humic acid significantly decreased plasma content of cholesterol, malondialdehyde (MDA) and low-density lipoprotein (LDL) while increased glucose, total protein, triiodothyronine, thyroxine, glutathione, globulin, -γ globulin, compared to control group. Humic acid significantly increased the percentage of dressing and decreased abdominal fat compared to control. In conclusion, humic acid supplementation at 1.00, 2.00 and 3.00 and 4.00 g/kg diet was superior regarding growth, digestibility, and economical return, without negative effects on blood and carcass traits of broilers.

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肉仔鸡对饲粮腐植酸的生产和生理反应

本试验旨在研究饲粮中添加腐植酸对肉鸡生产性能的影响。180只爱拔益肉鸡平均分为5个处理组。在基础饲粮中分别添加0(对照)、1.00、2.00、3.00和4.00 g/kg腐植酸。饲粮中添加不同水平腐植酸的雏鸡生产性能显著(P<0.05)高于对照组。腐植酸显著提高了粗蛋白质和两种提取物的消化率。与对照组相比，添加腐植酸显著降低了血浆胆固醇、丙二醛(MDA)和低密度脂蛋白(LDL)含量，提高了葡萄糖、总蛋白、三碘甲状腺原氨酸、甲状腺素、谷胱甘肽、球蛋白、-γ球蛋白的含量。与对照组相比，腐植酸显著提高了敷料率，减少了腹部脂肪。综上所述，饲粮中添加1.00、2.00、3.00和4.00 g/kg腐殖酸对肉鸡生长、消化率和经济效益均有显著影响，且对血液和胴体性状无负面影响。

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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Egyptian Poultry Science Journal

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