20.500.12556/DKUM-40118 Vpliv sezone na rastne, pitovne in klavne lastnosti prašičev Seasonal influence on growth, feeding and slaughtering characteristics of pigs V poskusu smo primerjali rastne, pitovne in klavne lastnosti prašičev (n=240), ki smo jih razdelili v poletno (POL) in zimsko (ZIM) skupino. V POL skupini je bila povprečna temperatura (T) 26,4 °C, medtem ko je bila v ZIM skupini 20,1 °C in je variirala med 7,0 °C in 32,2 °C. Vsi pujski so bili pripeljani iz farme Pristava pri povprečni starosti 70 dni in 26 kg. V času poskusa smo merili mikroklimatske pogoje v hlevih, beležili dnevno porabo krme (na skupino), spremljali rast in merili debelino hrbtne slanine (DHS) (pri starosti 71, 146 in 180 dni). Prašiči so bili nato pri starosti 181 dni zaklani v klavnici po standardnem postopku. V ZIM skupini smo izmerili višje vrednosti CO2 in nižjo koncentracijo O2 v primerjavi z POL skupino. Prašiči POL skupine so imeli skozi vsa obdobja pitanja slabšo konzumacijo krme v primerjavi z ZIM skupino. Zaradi slabše konzumacije v celotnem obdobju pitanja so imeli prašiči POL skupine nižji dnevni prirast, kar se je odrazilo v nižji živi masi ob zakolu in nižji masi klavnega trupa. Naši rezultati kažejo, da so nizke T in s tem povečana konzumacija vplivali na značilno poslabšanje konverzije (P=0,000) v ZIM skupini. Prav tako pa smo pri prašičih ZIM skupine ob zakolu zaznali višjo maso toplih polovic (MTP) in nižji odstotek mesnatosti (M). In the experiment we compared growth, feeding and slaughtering characteristics of pigs (n=240), which were divided into summer (SUM) and winter (WIN) group. The average Temperature (T) in the SUM group was 26.4 °C. The average T in the WIN group was 20.1 °C and it varied between 7.0 °C and 32.2 °C. All of the pigs had been brought from the pig farm in Pristava at the average age of 70 days and mass of 26 kg. During our experiment we measured the microclimatic conditions in pig stables, the consumption of pig fodder (per group), growth and thickness of fatback (BF) at the age of 71, 146 and 180 days. The pigs were then slaughtered in a slaughterhouse following the standard procedure at the age of 181 days. In comparison with the SUM group, the WIN group had higher values of CO2 and a lower concentration of O2. The consumption of pig fodder in the SUM group was smaller than the consumption in the WIN group. Due to the smaller consumption in the entire period, the pigs from the SUM group had a lower daily growth, which could be seen from lower living mass and lower mass of the carcase when the pigs were slaughtered. The results show that increased consumption due to low T resulted in a lower feed conversion rate (P=0.000) in the WIN group. When the pigs were slaughtered we also established a higher mass of hot carcase weight (HCW) and a lower lean-meat percentage (LM%). prašiči sezona prirast pitovne lastnosti klavne lastnosti plini pigs season growth performance feeding characteristics slaughter characteristics gases in air true true false Slovenski jezik Angleški jezik Diplomsko delo 2013-04-10 08:37:08 2013-05-10 09:42:49 2022-05-12 23:26:44 2023-12-29 03:07:23 2013 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:OM3M8AV3 VS_Rojs_Tadej_2013.pdf VS_Rojs_Tadej_2013.pdf 1 21B66324CD5A894FCABDD2811EE0AF1F 2abbc350d86db861e8428b7ecdc64ed816a0a308722677e9a10132f149150756 485e7a58-7c09-11eb-bb7a-00155d0001ca 20.500.12556/dkum/ecc42e95-0fc2-4ab0-8bd6-bf73847ca5e8 https://dk.um.si/Dokument.php?lang=slv&id=54705 Fakulteta za kmetijstvo in biosistemske vede 0 0 0