Utilisation of Large White × Mong Cai crossbred sows and Duroc and stress negative Piétrain boars for the production of fattening pigs under household conditions in northern Vietnam
Luc, D. D. | Clinquart, A. | Ton, V. D. | Binh, D. V. | Leroy, P. | Farnir, F.
The objective of this study was to compare the effects of Duroc (DU) and stress-negative Piétrain (PI) as terminal sires mated to F1(Large White × Mong Cai) sows (F1) on productivity, carcass characteristics, meat quality, and meat chemical composition under household conditions in Hai Duong province, Vietnam. The reproduction performances were based on 74 litters of 42 F1 sows from 12 households and the semen from 11 Duroc and 10 Piétrain boars. Data on production and carcass traits were collected from 76 DU × F1 and 67 PI × F1 crossbred fattening pigs. Longissimus dorsi samples from 55 DU × F1 and 37 PI × F1 were analysed to determine meat quality and meat chemical composition. The results show that household affected production, carcass, and meat quality traits (P < 0.05) as well as reproduction (weights at birth and weaning, P < 0.01). In contrast, boar breed did not influence (P > 0.06) reproduction traits (except individual weight of pigs born alive and weaned pigs, P < 0.01), production traits, meat chemical composition, or meat quality (except pH at 4 days post mortem, P < 0.05). Lean meat percentage of Piétrain-sired pigs was higher than that of Duroc-sired pigs (P < 0.05). The use of Piétrain boars does not affect reproduction performance, growth rate, or meat quality but does improve lean meat percentage compared with Duroc boars. This suggests that the use of stress-negative Piétrain boars as terminal sires would improve lean meat percentage under household conditions in North Vietnam.
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