20.500.12556/DKUM-67597 Effect of immunocastration on performance of Slovenian pig fatteners The influence of the immunocastration (immunisation against GnRH) on pig performance (growth, carcass and meat quality traits) was investigated in two parallel experiments (on two farms) with two crossbreeds – G1 (50% Duroc) and G2 (50% Pietrain). Within the crossbreed, the pigs were assigned to three experimental groups; entire males (EM, n=49), immunocastrates (IC, n=45) and surgical castrates (SC, n=45). Those assigned to IC group were vaccinated at the age of 12 and 19 weeks. Pigs were individually housed, their feed intake (ad libitum) and weight (at 12, 19 and 24 weeks) were recorded. At the age of 24 weeks, the pigs were slaughtered and their carcass and meat quality traits were assessed. We hypothesized that treatment response could have been different in two crossbreeds. However the interaction was insignificant, thus the treatment effect is presented on pooled results for both crossbreeds. Until the revaccination, IC were similar to EM pigs, thereafter they exhibited an increase in feed intake and growth rate. Overall, they presented an advantage in growth rate and feed efficiency as compared to SC. They also exhibited better carcass properties as SC without any major effect on meat quality. The present study provides the initial information on the immunocastration effect in Slovenian herds that should further be supported by testing it in usual rearing conditions and group housing. pig immunocastration growth performance carcass properties meat quality prašiči imunokastracija rast lastnosti trupa kakovost mesa true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-08-24 09:43:54 2017-08-24 09:45:29 2022-08-01 14:12:27 2019-07-11 13:59:37 2011 0 0 str. 205-208 št. 3 Letn. 76 2011 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1331-7776 2015788 1331-7776 URN:SI:UM:DK:79G7GQOM Agriculturae_Conspectus_Scientificus_2011_Skrlep_et_al._Effect_of_Immunocastration_on_Performance_of_Slovenian_Pig_Fatteners.pdf Agriculturae_Conspectus_Scientificus_2011_Skrlep_et_al._Effect_of_Immunocastration_on_Performance_of_Slovenian_Pig_Fatteners.pdf 1 795DE6B23E0C013BBE55F50329EE8A9F 21ddd219a87aa921f44dcde5941d68eab7fbb3af2febf88375e0cb29756b91c0 8cf0b506-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/1822aa23-c907-4f50-9a9e-c4d207407d6d https://dk.um.si/Dokument.php?lang=slv&id=115859 http://hrcak.srce.hr/72036 1 https://dk.um.si/Dokument.php?lang=slv&id=115858 Fakulteta za kmetijstvo in biosistemske vede 0 0 0