DOI - Vydavatelství Mendelovy univerzity v Brně

Identifikátory DOI

DOI: 10.11118/978-80-7509-994-5-0161

EFFECT OF FEEDING HUMIC SUBSTANCES ON THE PRODUCTION PARAMETERS AND PRODUCT QUALITY OF BROILER CHICKENS

ŠTEFÁNIA MOLNÁROVÁ1, PAVEL NAĎ1
1 Department of Nutrition and Animal Husbandry, University of Veterinary Medicine and Pharmacy, Komenského 73, 071 81 Košice, Slovak Republic

Besides the scale of production, the success of livestock farming is also affected by the level of input prices. Feed is one of the more expensive items. The aim is to use the feed components in the feeding process as rationally and efficiently as possible, by increasing their attractiveness in terms of intake, by increasing the digestibility and utilization of nutrients. These effects can also be achieved with the help of additives, which include humic substances. In this work, the influence of humic subtances on the production parameters of broilers and on the quality of poultry products was studied. The experimental group of broiler chickens received a feed mixture with the addition of HumacNatur in a concentration of 0.7 %. At the end of the experiment, the control group of broilers reached an average weight of 2606.4 g and the experimental group 2349.0 g. Feed conversion was 1.63 in the control group and 1.74 in the experimental group. The carcass yield of the control group after dissection was 73.2 % and the experimental group after dissection was 75.1 %. The carcass yield of the pectoral muscle of the control group was 27.8 % and of the experimental group was 28.4 %. The carcass yield of the thigh muscle was 28.8 % and the experimental group was 29.1 %. Furthermore, the content of water, dry matter, protein and fat in the pectoral and thigh muscles was determined. The results show that the use of HumacNatur at a concentration of 0.7 % did not have a significant effect on the monitored parameters in broilers.

Klíčová slova: humic compounds; growth rate; poultry nutrition

stránky: 161-170, online: 2024



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