African Journal of Pig Farming

African Journal of Pig Farming ISSN 2375-0731 Vol. 8 (1), pp. 001-006, January, 2020. © International Scholars Journals

Full Length Research Paper

The influence of the different content of protein fractions in sows’ milk in piglet rearing

Ewa Skrzypczak1*, Karolina Szulc1, Monika Demkowicz2, Damian Knecht3, Anna Jankowska-Mąkosa3 , Janusz T. Buczyński1 and Marek Babicz4

1Department of Pig Breeding and Production, Poznań University of Life Sciences, ul. Wołyńska 33, 60-637 Poznań, Poland.

2Department of Cattle Breeding and Milk Production, The Institute of Animal Breeding, Wrocław University of

Environmental and Life Sciences, ul. J. Chełmońskiego 38C, 51-630 Wrocław, Poland.

3Department of Pig Breeding, The Institute of Animal Breeding, Wrocław University of Environmental and Life Sciences, ul. J. Chełmońskiego 38C, 51-630 Wrocław, Poland.

4Department of Breeding and Technology of Pig Production, University of Life Sciences in Lublin, ul. Akademicka 13, 20950 Lublin, Poland.

Accepted 15 June, 2019

Abstract

The aim of this study was to investigate the influence of the percentage content of protein fractions in total protein of sow`s colostrums and milk and their influence on the traits related with piglet rearing. The animal specimens were 20 sows of the native Złotnicka White breed. Złotnicka pigs were subjected to the National Genetic Resources Conservation Programme. Colostrum and milk were collected between the 20th and 24th h after parturition and on the 2nd, 3rd, 7th, 14th and 21st day of lactation. A total of 120 samples (60 colostrum samples and 60 milk samples) were collected from all active mammary glands. Individual fractions of total protein were separated by means of electrophoresis on polyacrylamide gel in the presence of sodium dodecyl sulphate (SDS). The piglets’ body weights average daily gains and mortality were checked consecutively after 24 hours after parturition and on the day 7th, 14th, and 21st of lactation. 207 piglets were examined. A highly significant correlation between the number of piglets, daily growths and protein fractions was observed. The most favourable rearing results were obtained at the highest level (III) of individual fractions. The study also proved most of the piglets are lost from the litters when the level of fractions is the lowest (I).

Key words: Sows, milk, protein fractions, Złotnicka White, piglet rearing.