Abstract:
The purpose of this study was to identify and verify the effectiveness of breeding sows management, intended
to optimize the economic performances and correcting negative factors that influence reproductive parameters of them.
The research was made in a farm from Mureş County . In this study were followed 100 animals from lines: Camborough,
Hypor Libra, Eurohyb, and PIC. The research was focused on several directions: detecting estrus in sows and gilts; the
organization of artificial insemination; pregnancy management; the management of parturition and newborn piglets;
pregnancy rate and the prolificacy. The animals were divided in 3 groups, depending on the age and number of previous
pregnancies. The average number of piglets born at the PIC line was 9.8, and the average number of weaned piglets was
9.5, with a range of 8.6 piglets (group III) and 10.2 piglets (group II). The average number of products produced by the
Camborough line was 9,75, with a minimum of 9,6 piglets (lot III) and a maximum of 9,9 piglets (group II). For weaned
piglets the average number was 8.75 with values between 8.3 piglets (group III) and 9.2 piglets (group II). For Hypor
Libra line the average number of piglets born was 12.35, with values between 12.3-12.4 piglets. The average number of
weaned piglets to this line was 11.75, with a minimum of 11.6 (lot II) and a maximum of 11.9 piglets (group III). The
average number of piglets born from the Eurohyb line was 9.55, with a minimum of 7.9 piglets (group I) and a maximum
of 11,2 piglets (lot III), and the average number of piglets weaned was 8.85 with a minimum of 7.5 piglets (group I) and
a maximum of 10.2 piglets (group III).
