148713 20250121150753.0 doi 10.3390/ani11071900 sideral 127109 ART-2021-127109 eng Pérez-Ciria L. Universidad de Zaragoza Effect of immunocastration and diet on growth performance, serum metabolites and sex hormones, reproductive organ development and carcass quality of heavy gilts 2021 It is desirable to increase fatness in gilts destined for Teruel dry-cured ham production. A total of 192 Duroc × (Landrace × Large White) gilts of 40.3 ± 4.80 kg body weight (BW) were used to assess the impact of immunocastration and feeding on growth performance, serum metabolites and sex hormones, reproductive organ development, and carcass quality. Six treatments were arranged factorially (2 × 3) with two types of gilt (entire gilts (EG) vs. immunocastrated gilts (IG)) and three experimental diets (control vs. high energy vs. low crude protein and amino acids) provided from 76 to 134 kg BW (n = 4 per treatment, being the replicate the pen with eight pigs). Immunocastration was carried out at 58 and 77 kg BW. The IG grew faster and showed lighter reproductive tracts and greater fatness than EG. The experimental feeds had limited effect on carcass quality, but the high-energy diet improved gain-to-feed ratio and the low-protein and -amino-acids diet did not impair growth performance. In conclusion, immunocastration was a better strategy than the tested diets to increase the fatness of gilts intended for Teruel dry-cured ham, although increasing energy or decreasing crude protein and amino acid levels in the diet could be beneficial strategies for pig farmers. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MINECO/AGL2016-78532-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.231 2021 VETERINARY SCIENCES 16 / 145 = 0.11 2021 Q1 T1 AGRICULTURE, DAIRY & ANIMAL SCIENCE 13 / 62 = 0.21 2021 Q1 T1 0.61 2021 Veterinary (miscellaneous) 2021 Q1 Animal Science and Zoology 2021 Q1 2.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Miana-Mena F.J. Universidad de Zaragoza (orcid)0000-0001-5981-5448 Falceto M.V. Universidad de Zaragoza (orcid)0000-0001-6964-7011 Mitjana O. Universidad de Zaragoza (orcid)0000-0001-9907-2941 Latorre M.A. Universidad de Zaragoza (orcid)0000-0002-3005-2675 1012 410 Universidad de Zaragoza Dpto. Farmac.Fisiol.y Med.L.F. Área Fisiología 2008 700 Universidad de Zaragoza Dpto. Produc.Animal Cienc.Ali. Área Producción Animal 1009 617 Universidad de Zaragoza Dpto. Patología Animal Área Medicina y Cirugía Animal 11, 7 (2021), 1900 [16 pp.] Animals (Basel) Animals 2076-2615 416091 http://zaguan.unizar.es/record/148713/files/texto_completo.pdf Versión publicada 2695443 http://zaguan.unizar.es/record/148713/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:148713 articulos driver 2025-01-21-14:43:59 ARTICLE