Arif Muhammad, Baty Roua S, Althubaiti Eman H, Ijaz Muhammad T, Fayyaz Muhammad, Shafi Manal E, Albaqami Najah M, Alagawany Mahmoud, Abd El-Hack Mohamed E, Taha Ayman E, Salem Heba M, El-Tahan Amira M, Elnesr Shaaban S
Department of Animal Sciences, College of Agriculture, University of Sargodha, Sargodha, Pakistan.
Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
Saudi J Biol Sci. 2022 Mar;29(3):1604-1610. doi: 10.1016/j.sjbs.2021.11.002. Epub 2021 Nov 11.
The study aimed to investigate the effect of various doses of betaine supplemented dietary on Japanese quail performance, carcass characteristics, and blood chemistry. Therefore, 400 seven days old Japanese quails were classified randomly into four equal groups. Each group was subdivided into five replicates of 20 birds each. Four rations were formulated using four different betaine levels (0, 0.75, 1.5 and 2.25 g/kg, respectively) for five successive weeks. All groups received feed and clean water ad-libitum. The results of this trial indicated that the feed intake was lowered in groups fed with betaine (p ≤ 0.05) when compared with the control one. The highest weight gain (p ≤ 0.05) was noticed in groups fed diets BS4 (betaine supplementation at the rate of 2.25 g/kg). No difference among groups was observed in body length, shank length, shank diameter, and keel bone length or breast width. Also, the carcass weight and breast yield were highest (p ≤ 0.05) in the group reared on the BS4 diet. In addition, intestinal length and weight were significantly higher (p ≤ 0.05) in groups fed betaine with a concentration of 2.25 g/kg. Fat weight was lower in the group fed BS4 than in the untreated group. Significantly higher values of high-density lipoprotein (p ≤ 0.05) were observed in the group fed BS4. All groups fed a ration containing betaine showed lower levels of liver enzymes such as alanine amino transferase, alkaline phosphatase, and aspartate amino transferase (p ≤ 0.05) and lowered low-density lipoprotein level. The quails fed BS4 had the greatest growth hormones and insulin (p ≤ 0.05) and the lowest thyroxin level. We concluded that dietary betaine supplementation positively impacts Japanese quail growth performance, carcass traits, and blood chemistry.
本研究旨在探讨日粮中添加不同剂量甜菜碱对日本鹌鹑生产性能、胴体特性及血液生化指标的影响。因此，将400只7日龄日本鹌鹑随机分为4组，每组再分为5个重复，每个重复20只。连续5周使用4种不同甜菜碱水平（分别为0、0.75、1.5和2.25 g/kg）配制4种日粮。所有组自由采食和饮水。本试验结果表明，与对照组相比，饲喂甜菜碱的组采食量降低（p≤0.05）。在饲喂BS4日粮（甜菜碱添加量为2.25 g/kg）的组中观察到最高的体重增加（p≤0.05）。各组在体长、胫长、胫直径、龙骨长或胸宽方面未观察到差异。此外，饲喂BS4日粮的组胴体重和胸肉产量最高（p≤0.05）。另外，饲喂浓度为2.25 g/kg甜菜碱的组肠道长度和重量显著更高（p≤0.05）。饲喂BS4的组脂肪重量低于未处理组。在饲喂BS4的组中观察到高密度脂蛋白值显著更高（p≤0.05）。所有饲喂含甜菜碱日粮的组肝酶如丙氨酸氨基转移酶、碱性磷酸酶和天冬氨酸氨基转移酶水平较低（p≤0.05），低密度脂蛋白水平降低。饲喂BS4的鹌鹑生长激素和胰岛素水平最高（p≤0.05），甲状腺素水平最低。我们得出结论，日粮中添加甜菜碱对日本鹌鹑的生长性能、胴体性状及血液生化指标有积极影响。
