A pótlólagos tejkiegészítés hatása a malacok testtömeg-gyarapodására és az alomkiegyenlítettségre a fiaztatóban

Abstract

SUMMARY Sow milk production is the major factor limiting pig growth to weaning. Genetic and environmental changes during the last few decades have resulted in higher milk production of lactating sows, however, many environmental factors affect the actual performances. The supplemental milk replacer can be an appropriate solution to ward off uncertainties and try to equalize the available milk quantity to the piglets, according to their appetite, to enlarge the weight of pigs at weaning, ultimately. The aim of the present study was to investigate the effects of liquid milk supplement on weight development and litter performance of the piglets during the suckling period. Data were collected from 90 farrowing, the weight of 965 piglets in a total were measured at birth, 14 days old and at weaning (28 days), respectively. In the control group (n = 319) the piglets were suckled and got prestarter feed from day 10. In the experimental group 1 (n = 330) the piglets had got liquid milk replacer in 10,7 weight percentage solution and in the experimental group 2 (n = 319) in 14,5 weight percentage solution, respectively from day 10 after birth together with suckling and prestarter feed, as well. Based on the Duncan's new multiple range tests, there were no significant differences in birth weight between the control and experimental groups but significant differences were found between the 14 days weight and weaning weight, subsequently. Based on the CV% of weight the experimental group became more homogeny, in contrary with the weight of control group at the end of suckling period.