Impact of grape (Vitis vinifera) seed extract on egg production traits, nutrients digestability, lipid peroxidation and fertility of golden laying hens (Gallus gallus) during early stage of production.
Abdul Hafeez, Shah Faisal Hassni, Shabana Naz, Rasha Alonaizan, Rasha K Al-Akeel, Dai Sifa, Shamsuddin Shamsi, Rifat Ullah Khan
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Abstract
Grape by-products represent outstanding alternatives to replace conventional and unsustainable feed sources, given the substantial quantities generated annually by the winery industry. Regrettably, the majority of these by-products are wasted, resulting in significant environmental and economic repercussions. This study was conducted to assess the growth performance, feed efficiency, egg production and quality, lipid peroxidation, fertility and hatchability of reproductive laying hens during their early production stage. A total of 720 golden laying hens, all approximately 25 weeks old and with similar body weights, were randomly assigned to four experimental treatments (six replicates) as follows: control group receiving only the standard diet, (2) a group receiving the standard diet supplemented with grape seed extract at a rate of 250 g/kg (GSE1), (3) a group receiving the standarddiet supplemented with grape seed extract at a rate of 500 g/kg (GSE2), and (4) a group receiving the standarddiet supplemented with grape seed extract at a rate of 750 g/kg (GSE3). There were no significant change (p > 0.05) in feed intak, body weight gain and feed conversion ratio between the control and the experimental groups. Egg weight, egg shell thickness and egg shell weight were significantly (p < 0.05) higher in GSE250 GSE500 and GSE750 compared to the control. The results showed that hen day egg production was also significantly higher (p < 0.05) in GSE500 and GSE 750 compared to the control. Fertility level of GSE 500 and GSE750 was significantly (p < 0.5) higher compared to the control. The MDA level decreased significantly (p < 0.05) in the GSE supplemented birds compared to the control. From these findings, we concluded that GSE 750 had positive impact on egg production, reducing lipid peroxidation and improving fertility in golden laying hens.
葡萄副产品是替代传统和不可持续饲料来源的杰出替代品，因为酿酒业每年产生大量的葡萄副产品。令人遗憾的是，这些副产品中的大多数都被浪费了，造成了重大的环境和经济影响。本研究旨在评估繁殖蛋鸡生产早期的生长性能、饲料效率、产蛋量和品质、脂质过氧化、生育能力和孵化能力。共有720只金母鸡，约25只 周大、体重相似的小鼠被随机分配到四个实验处理（六个重复），如下：对照组只接受标准饮食，（2）一组接受补充葡萄籽提取物的标准饮食，比率为250 g/kg（GSE1），（3）以500的比率接受补充有葡萄籽提取物的标准饮食的组 g/kg（GSE2）和（4）接受以750的速率补充葡萄籽提取物的标准饮食的组 g/kg（GSE3）。无明显变化（p > 0.05）。蛋重、蛋壳厚度和蛋壳重量均显著高于对照组（p p p p
期刊介绍：
Veterinary Quarterly is an international open access journal which publishes high quality review articles and original research in the field of veterinary science and animal diseases. The journal publishes research on a range of different animal species and topics including: - Economically important species such as domesticated and non-domesticated farm animals, including avian and poultry diseases; - Companion animals (dogs, cats, horses, pocket pets and exotics); - Wildlife species; - Infectious diseases; - Diagnosis; - Treatment including pharmacology and vaccination
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