Efficiency of using probiotic Elac-grow and Han-proway in laying-egg hens
نویسندگان
چکیده
Industrial chicken farm has to face many challenges such as epidermis and environmental pollution. Antibiotics synthetic antimicrobial agents are routinely used alleviate stress well elevate growth feed efficiency. However, using antibiotic had negative effects, especially resistance; therefore, probiotic products a bio-secure solution being popularly applied in livestock husbandry. The study was carried out on the two probiotics Elac-grow, diet supplement, Han-proway, waste treatment product, industrial egg-laying hens. There were lodgings (test control) these experiments; each 4000 23-week-old hens of Hyline breed. Two test none control. results showed that there not significantly difference egg yield between groups, although, lodging higher growing ratio (67.48%) than control one (65.73%). Egg quality experimental also improved damaged ratio, weight yolk after Elac-grow. efficiency Elac-grow Han-proway shown through concentration ammonia emission animal lodging. value maximum 5 ppm remained stable at this point, lower This microbial fluctuation analysis, when total bacteria coliform counts reduced sequentially above 1x108 CFU bacteria/g 1x107 coliform/g, uptrend 2x109 coliform/g.
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ژورنال
عنوان ژورنال: T?p chí công nghê sinh h?c
سال: 2022
ISSN: ['1811-4989']
DOI: https://doi.org/10.15625/1811-4989/16075