THE INFLUENCE OF AN LIVE WEIGHT OF THE PIGLETS AT BIRTH ON THEIR GROWTH, DEVELOPMENT AND THE FEED QUALITIES

Abstract

The investigation was carried out in the “Rossiya” LLC in Mozhginsky district of Udmurt Republic. For research three groups of piglets of large white breed at the age of 30 days after weaning from sows were formed according to live weight at birth. The live weight of hogs at birth were determined by their weighing individually. The first group consists of the pigs whit an average live weight at birth 1.25 kg in the amount of 18 heads and the second and third – pigs whit an average live weight under birth 1.45 and 1.71 kg in the amount 14 and 11 heads, respectively. The animals were kept in the group pens. Their feeding was executed fodder of the own production. The conditions of the animals feed and kept in the groups were the same. The aim of the research was to study of a growth, development, and the feed qualities of the hogs in the dependence on theirs of a live weight at birth. The growth and development study of the hogs was carried out by weighing them in 30 days, in 3 months, in 5 months, in 7 months. The study of the feed qualities was carried out taking into account an average daily gain, the expenses of fodder on 1 kg gain and a thickness of the fat over thoracic vertebrae. The obtained experimental data were processed with use of a tabular editor Microsoft Excel – 2010. The reliability of the difference arithmetic means was determined with use of a Student’s -test. Studies have shown that the piglets of the II and III groups surpassed their peers in the I in live weight in 30 days. – by 1.22-2.64 kg, 3 months – 4.56-9.52 kg, 5 months – 11.36-15.17 kg, 7 months – 15.30-15.89 kg (P> 0.999). In terms of average daily gain, fodder costs and fat thickness, the boars of the II and III groups surpassed their peers in the I by: 51.81-91.31 g, 0.29-1.67 fodder. units and 5.78-11.56 mm (P> 0.999), respectively.