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Meat quality traits in longissimus lumborum and gluteus medius muscles from immunocastrated and surgically castrated Iberian pigs

AuthorsSeiquer, Isabel; Palma Granados, Patricia; Haro García, Ana María; Lara Escribano, Luis; Lachica, M.; Fernández-Fígares Ibáñez, Ignacio; Nieto Liñán, Rosa María
Meat quality
Intramuscular fat
Fatty acids
Iberian pigs
Issue Date2019
CitationMeat Science 150: 77- 84 (2019)
AbstractThis study analyzes quality traits of longissimus lumborum and gluteus medius in surgically castrated (SC) males, inmunocastrated (IC) males and IC female Iberian pigs reared in intensive conditions (n = 18/sex). Vaccination with Improvac® was applied at 18 and 26 weeks of age and slaughtering at 31 weeks. At such conditions, notable sex differences were found. Both muscles of IC males were less red (P <.01), longissimus had lower intramuscular fat (P <.01) and gluteus less Fe content (P <.01) than SC males and IC females. Loins from IC males also exhibited higher drip losses (2.7% at 24 h) than SC males (1.9%) and IC females (1.6%) (P <.001). Fatty acid composition of muscles differed among sexes, especially polyunsaturated fatty acids, which varied as follows: IC males > IC females > SC males in both muscles. It was concluded that meat quality traits differed between inmunocastrated and surgically castrated male Iberian pigs.
Publisher version (URL)https://www.sciencedirect.com/science/article/abs/pii/S0309174018306491?via%3Dihub
Identifiersdoi: 10.1016/j.meatsci.2018.12.004
issn: 0309-1740
Appears in Collections:(EEZ) Artículos
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