Saleh Ahmed A, Hamed Shimaa, Hassan Aziza M, Amber Khairy, Awad Wael, Alzawqari Mohammed H, Shukry Mustafa
Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh 33516, Egypt.
Biology Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
Animals (Basel). 2021 Dec 9;11(12):3513. doi: 10.3390/ani11123513.
This study aimed to assess the effect of dietary supplementation with different levels of and/or on productive performance, ovarian follicular development, lipid peroxidation, antioxidative status, and egg quality in laying hens. Two hundred and ninety-four 45-week-old Bovans brown hens were allocated into seven groups, with seven replicates of six hens each. The first group was fed with the basal considered as a control (A); the second (B) and third (C) groups were provided with the same control diet further supplemented with 0.5 and 1 kg/ton , respectively; the fourth (D) and fifth (E) groups received the control diet further supplemented with 0.5 and 1 kg/ton , respectively; while the sixth (F) and the seventh (G) groups were offered a diet supplemented with 0.5 kg/ton and 0.5 kg/ton and 1 kg/ton and 1 kg/ton , respectively. No significant effects were observed in the final body weight (BW) and feed intake (FI) of the laying hens. In the diets supplemented with and , the egg weights for groups C, F, and G had significantly higher values only compared to group D. The supplementation of the diets with and/or significantly ( < 0.05) increased the Follicle stimulating hormone (FSH), luteinizing hormone (LH), and estradiol estrogenic hormone concentration, except for at both levels with regard to estradiol. The dietary utilization of and did not significantly alter the plasma glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT), total protein, albumin, globulin, and High density lipoprotein (HDL) parameters. Cholesterol, glucose, triglyceride, and Low density lipoprotein (LDL) were decreased ( < 0.05) in the birds fed with and/or supplemented diets. Moreover, at both doses, the dietary supplementation with and decreased ( < 0.05) the yolk cholesterol and liver Malondialdehyde (MDA) levels. In addition, the dietary enrichment with and/or decreased ( < 0.05) the palmitoleic and stearic fatty acids' egg yolk concentration. In contrast, the yolk linoleic fatty acid concentration was significantly increased by and/or . In conclusion, dietary supplementation with and/or Origanum positively affected productive performance, ovarian follicular development, antioxidant activity, hormonal status, and steroidogenesis in Bovans brown laying hens.
本研究旨在评估日粮中添加不同水平的[具体物质1]和/或[具体物质2]对蛋鸡生产性能、卵泡发育、脂质过氧化、抗氧化状态及蛋品质的影响。294只45周龄的博万斯褐壳蛋鸡被分为7组，每组6只，共7个重复。第一组饲喂基础日粮作为对照（A组）；第二组（B组）和第三组（C组）在相同对照日粮基础上分别额外添加0.5和1千克/吨的[具体物质1]；第四组（D组）和第五组（E组）在对照日粮基础上分别额外添加0.5和1千克/吨的[具体物质2]；而第六组（F组）和第七组（G组）分别饲喂添加0.5千克/吨[具体物质1]和0.5千克/吨[具体物质2]以及1千克/吨[具体物质1]和1千克/吨[具体物质2]的日粮。蛋鸡的末体重（BW）和采食量（FI）未观察到显著影响。在添加了[具体物质1]和[具体物质2]的日粮组中，C组、F组和G组的蛋重仅与D组相比显著更高。日粮中添加[具体物质1]和/或[具体物质2]显著（P<0.05）提高了促卵泡激素（FSH）、促黄体生成素（LH）和雌二醇雌激素浓度，但两种水平的[具体物质1]对雌二醇无此影响。[具体物质1]和[具体物质2]的日粮利用率未显著改变血浆谷草转氨酶（GOT）、谷丙转氨酶（GPT）、总蛋白、白蛋白、球蛋白和高密度脂蛋白（HDL）参数。在饲喂添加了[具体物质]和/或[具体物质]日粮的鸡中，胆固醇、葡萄糖、甘油三酯和低密度脂蛋白（LDL）降低（P<0.05）。此外，两种剂量下，日粮添加[具体物质1]和[具体物质2]均降低（P<0.05）了蛋黄胆固醇和肝脏丙二醛（MDA）水平。另外，日粮添加[具体物质1]和/或[具体物质2]降低（P<0.05）了蛋黄中棕榈油酸和硬脂酸的浓度。相反，[具体物质1]和/或[具体物质2]显著提高了蛋黄中亚油酸的浓度。总之，日粮添加[具体物质1]和/或牛至对博万斯褐壳蛋鸡的生产性能、卵泡发育、抗氧化活性激素状态和类固醇生成有积极影响。
