Evaluation of reproductive performance in sows of Prestice Black-Pied pig - Czech genetic resource

Abstract

The aim of the study was to evaluate reproductive performance in selected sows of Prestice Black-Pied pig included in Czech genetic resources and also to analyse losses of piglets and culling of sows according to parity order. The experimental work was conducted in a nucleic herd of sows registered in breeding book. A total of 88 sows were included in the observation. Findings indicate that productive parameters of Prestice Black-Pied sows are comparable to productive parameters of modern genotype sows. The results also showed that the highes conception rate after the first insemination was achieved after the second, the third and the fourth parity. Analysis of gestation length revealed that it was significantly influenced by the parity. Very highly significant difference (P<0.001) was found between the 1st and the 2nd parity and between the 1st and the 4th parity. Total numbers of piglets and numbers live-born, stillborn and reared piglets per litter increased significantly (P<0.001, P<0.01, P<0.05) up to the 4th parity, afterwards they continuously decreased. The number of stillborn piglets was the lowest at the 2nd parity, the highest at the 5th and the 6th parity (P<0.05). Length of interval was highly significantly different (P<0.01) between the 2nd and the 5th parity and significantly different (P<0.05) between the 4th and the 5th parity. Differences in the losses of piglets were not significant among parities. The most radical culling of sows was recorded after the 3rd and the 4th parity.

Combined Effect of Sow Parity and Terminal Boar on Losses of Piglets and Pre-Weaning Growth Intensity of Piglets

“…Our findings correspond to the results of Segura et al [ 17 ], who evaluated reproductive performance in F1 sows (Large White × Landrace) from the first to the sixth parity, which confirms that current hybrid sows are characterized by higher uniformity in reproductive parameters, regardless of parity. However, this trend was the opposite in pure breeds with significant differences in the number of live-born and reared piglets [ 5 , 18 , 19 ]. All the studies mentioned above are in accordance with our findings that the first parity sows had the lowest total numbers of piglets when compared to later parities.…”

Native Pig Breeds as a Source of Biodiversity—Breeding and Economic Aspects

“…The pigs of this breed have a black coat with a white saddle and lop ears [50]. They are characterized by longevity, strong body build, and good adaptability [112][113][114][115]. Black-Spotted Prestice sows have been shown to have moderate fertility (8.16 piglets born alive) [112], a very calm temperament, a high milk yield, and strong maternal instincts [116,117].…”