20.500.12556/DKUM-83256 Vpliv talnega gretja na prirast in pojavnost poškodb nog brojlerskih piščancev diplomsko delo Underfloor Heating Effects on the Growth and Leg Injuries in Broiler Chickens Cilj raziskave je bil ugotoviti, ali ogrevanje hleva s talnim gretjem vpliva na prirast in pojavnost poškodb nog brojlerjev. V raziskavo smo vključili hlev s in hlev brez talnega gretja pri istem nastilju – lesnih oblancih. Meritve smo izvajali enkrat tedensko 35 dni. Pred poskusom smo si v obeh hlevih zamislili 6 merilnih mest v velikosti 4 m2, ki so skozi poskus ostala nespremenjena. Mesta so si bila med seboj ter od krmilnikov/napajalnikov isto oddaljena. V meritvah smo od brojlerjev pridobili podatke telesne mase in ocenili poškodbe nog. Zanimalo nas je tudi stanje v hlevu, zato smo beležili še temperaturo ozračja, nastilja ter delež vlage v zraku. Ugotovili smo, da pri povprečni doseženi masi med hlevoma ni statistično značilnih (P > 0,05) razlik, so se pa statistično značilne (P ≤ 0,05) razlike v telesni masi pojavile glede na teden reje. Po ocenitvi nastilja smo prišli do ugotovitve, da se hleva statistično značilno (P ≤ 0,05) razlikujeta pri dveh ocenah (ocena 1 in ocena 4). Povprečne temperature nastilja in ozračja v hlevih si med seboj niso bile statistično značilno (P > 0,05) različne, statistično značilne (P ≤ 0,05) razlike pa smo lahko beležili pri tedenskih meritvah. Povprečni odstotek vlage je bil po zaključku poskusa višji v starejšem hlevu, med hlevoma pa le v enem tednu reje ni bilo statistično značilnih (P > 0,05) razlik. V vseh tednih reje se pri obeh hlevih prisotnost poškodb nog ni zaznala. The aim of the study was to investigate whether underfloor heating of the barn influences the growth rate and the incidence of leg injuries in broilers. The study included a barn with and a barn without underfloor heating with the same litter – wood shavings. Measurements were taken once a week for 35 days. Before the experiment, six measurement points of 4 m2 were set up in the two barns, which remained unchanged throughout the experiment. The sites were equidistant from each other and from the feeder/water supply. In the measurements, we obtained body weight data from the broilers and assessed leg injuries. We were also interested in the condition of the barn, so we also recorded the temperature of the atmosphere, the litter and the humidity content of the air. We found that there were no statistically significant (P > 0. 05) differences in mean weight gain between the two barns, but statistically significant (P ≤ 0. 05) differences in body weight by week of rearing. After assessing the litter, we found that there were statistically significant (P ≤ 0. 05) differences between the two stables in two of the ratings (rating 1 and rating 4). The average litter and house atmosphere temperatures were not statistically significantly (P > 0. 05) different from each other, but statistically significant (P ≤ 0. 05) differences could be observed in the weekly measurements. The average humidity percentage at the end of the experiment was higher in the older barn, but there were no statistically significant (P > 0. 05) differences between the two barns in only one week of rearing. In all weeks of rearing, no leg injuries were detected in both barn. brojlerski piščanci talno gretje prirast poškodbe nog in stopal nastilj Broiler chickens underfloor heating growth rate Leg and Foot Disorders litter true true false [M. Levanič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2022-10-07 10:30:41 2022-12-05 13:32:38 2022-12-06 03:07:04 0000-00-00 00:00:00 2022 0 Maribor 0 Maribor 1 spletni vir (1 PDF datoteka (XI,63 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 636.5.083.1:631.22(043.2)=163.6 132326659 VS_Levanic_Matic_2022.pdf VS_Levanic_Matic_2022.pdf 1 C7355B2C824A80ED418C97C4D14E1324 1a7bbf344c6d1c3bcea186d8527d4709bc4c0c0b459e65564d428bf187a9db2a 31aef32d-47fb-11ed-8a6e-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=163828 Fakulteta za kmetijstvo in biosistemske vede 0 0 0