Protein phenotypes and productive traits in Landrace, Large White and Duroc swine

Ciência Rural

Meincke, Werner³  Tagliaro, Claudia Helena¹  Franco, Maria Helena Lartigau Pereira²  Silva, Gilberto³ 

[1] Universidade Federal do Pará, Belém, Brasil;Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil;Associação de Criadores de Suínos do Rio Grande do Sul, Estrela, Brasil

关键词: pigs;    protein phenotypes;    production traits;    associations;   

DOI  :  10.1590/S0103-84781995000100012

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Fourteen protein systems coded by 15 structural loci were typed by horizontal electrophoresis to determine possible associations betweem the protein phenotypes and productive traits in Landrace (N=109), Largo White (N= 116) and Duroe (N=57) pigs, reared in Southern Brazil. Signiticant associations between protein phenotypes and production traits were detected. The most consistent interaction were observed between two protein systems (phosphogluconate dehydrogenase - Pgd and Hemopexin -Hpx) and at least one of the four performance variables considered. In Duroc breed, the Pgd phenotypes were associated with daily weight gain (P < 0.01), feed conversion ratio (P < 0.01) and selection index (P < 0.001), while in Landrace significant associations were observed only with feed convertion ratio (P < 0.05). The Hpx phenotypes were associated with daily weight gain (P < 0.05) and backfat thickness (P < 0.05) in Large White and with this last variable (P < 0.01) and selection index (P < 0.05) in Duroc pigs. Since these results had not been reported previously, turther studies are need to confirm these associations.

【 授权许可】

CC BY-NC