Primary Evaluation on Growth Performances of Stress Negative Piétrain Pigs Raised in Hai Phong Province of Vietnam

Abstract

The present study was carried out on 19 stress negative Piétrain pigs (Pietrain ReHal), consisting
of 13 gilts and 6 young boars imported from Belgium, raised in the livestock farm of Dong Hiep (Hai
Phong)  in order to  evaluate  growth performances and their adaptability in the North of Vietnam.
Results showed that the average body weight of the whole herd at 2, 4, 5.5, and 8.5 months old was
19.05, 51.05, 85.82, and 119.47 kg, respectively. During the growing periods, except the first stage, the
male grew faster than the female and the pigs of the CT genotype grew faster than those of CC
genotype although the difference was not significant (P>0.05). The average daily gain (ADG) was 528.56
grams for the whole herd. The ADG was higher for the male (546.48 grams) than for the female (520.29
grams), and its was higher for the CT than the CC, but the difference was not statistically significant
(P>0.05). The feed conversion ratio (FCR) was 2.69 kg. The estimated lean percentage at 8.5 months old
was 64.08%. The results indicate that Piétrain stress negative pigs could develop well on the farm
conditions in Hai Phong, Vietnam.