Stęczny Kamil, Kokoszyński Dariusz
Department of Animal Sciences, Faculty of Animal Breeding and Biology, UTP University of Science and Technology, Bydgoszcz, Poland.
Anim Biotechnol. 2021 Dec;32(6):758-765. doi: 10.1080/10495398.2020.1754841. Epub 2020 Apr 17.
This experiment evaluated the effect of Pro-Biotyk (Em-15) and EMFarma™ probiotics on body weight, feed intake and conversion, carcass traits, and microbial contamination in a poultry house. The probiotic preparations caused a nonsignificant increase in body weight (42 days), feed intake, and feed conversion ratio (1-42 days) and a nonsignificant decrease in chicken mortality from 4 weeks of rearing. Chickens exposed to probiotics did not differ significantly in preslaughter body weight, carcass weight, dressing percentage, and the content of carcass components. The carcasses from experimental chickens had a lower percentage of breast muscle, leg muscle, abdominal fat, and neck, as well as a higher percentage of skin with subcutaneous fat, wings, and remainder of carcasses compared with the carcasses from control birds. The probiotic preparations used in this study were highly effective as auxiliary disinfectants.
本实验评估了Pro - Biotyk（Em - 15）和EMFarma™益生菌对家禽体重、采食量与转化率、胴体性状以及禽舍微生物污染的影响。益生菌制剂使体重（42日龄）、采食量和饲料转化率（1 - 42日龄）出现不显著增加，且自饲养4周起鸡的死亡率出现不显著下降。接触益生菌的鸡在宰前体重、胴体重量、屠宰率和胴体组成成分含量方面无显著差异。与对照鸡的胴体相比，实验鸡的胴体胸肌、腿肌、腹部脂肪和颈部的比例较低，而带皮下脂肪的皮肤、翅膀和胴体其余部分的比例较高。本研究中使用的益生菌制剂作为辅助消毒剂非常有效。
