Boars breed influence on conception and fertility of pigs during a calendar year
1984
Tokovski, T. | Madzirov, Z. | Petkov, K. (Zemjodelski fakultet, Skopje (Yugoslavia))
Conception of sows of Swedish Landrace breed depends on the boar breed. Conception of sows of all groups declines during summer months. Its drop is more evident in a group of sows inseminated by the sperm of "Durok" boars (32, 42-42, 50) compared to those inseminated by the sperm from boars of Big Yorkshire and Swedish Landrace breed. (52, 38% - 61.72%). During the entire year the largest number of live born piglets had sows inseminated by a sperm from Big Yorkshire boar (9.95). Number of still born piglets fluctuates and is greater in a pig group inseminated by a sperm from boars of Swedish Landrace and Big Yorkshire breed.
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