RESEARCH IN PIG BREEDING, 10, 2016 (2)
Rolinec M., Bíro D., Gálik B., Šimko M., Juráček M., Kanka T., Imrich I., Bučko O.
CHANGES IN THE AVERAGE CONCENTRATION OF AMINO ACIDS IN SOW’S COLOSTRUM
The concentrations of amino acids in sow’s colostrum were determined. Colostrum samples were milked by hand from 6 Large white sows. First colostrum sample were milked immediately after birth of first piglet, next samples were milked every hour for 12 hours. After lyophilisation, mineralized samples of colostrum were analyzed for amino-acids concentration. At the time of birth of first piglet leucine (54.97±6.66g.kg-1 of DM – dry matter) and lysine (43.32±5.09g.kg-1 of DM) were the essential amino acids with the highest content. The nonessential amino acids with the highest content in colostrum sample at the time of birth of first piglet were glutamic acid (85.80±9.66g.kg-1 of DM) and proline (57.62±6.41g.kg-1 of DM). During first hour from birth of first piglets the content of all amino acids increased in average by 6.71% (minimum 2.12% cysteine, maximum 10.44% valine). Than up to 12th hour after birth of first piglet the content of all amino acids decreased in average by -17.08% (minimum -11.48% proline, maximum -23.94% cysteine). At the 12th hour after birth of first piglet the essential amino acids with the highest content were leucine (46.19±13.06g.kg-1 of DM) and lysine (37.72±11.18g.kg-1 of DM) and the nonessential amino acids with the highest content were glutamic acid (75.77±18.36g.kg-1 of DM) and proline (51.00±10.43g.kg-1 of DM). In all sampling periods, methionine has the lowest concentration (time of birth of first piglet 11.45±0.43g.kg-1 of DM; 12th hour after birth of first piglet 10.04±1.90g.kg-1 of DM). These results confirm, that changes of amino acids in sow’s colostrum during first 12 hours of lactation are marked. We could say, that piglets born in different time after birth of first piglet ingest colostrum with different content and proportion of amino acids.
Key words: sow, colostrum, amino acids