Dietary supplementation of a yeast-whey preparation for weaned piglets

Abstract

Weaning is a stressful period for the piglets and the sow. Stress during weaning is related to the change of diet which can affect the physiology of the gastrointestinal tract, as well as the microbial and immunological status of the animals. In the experiment a yeast-whey preparation was used to decrease the transient growth depression related to reduction of feed intake by the piglets. The piglets were assigned to three treatments. In the control group (I) the animals obtained standard feed mixture used routinely at the farm. In the case of piglets from II and III treatment, the yeast-whey preparation was added in the quantity of 4 and 7%, respectively. Application of 7% yeast-whey preparation to the diet significantly increased the body weight of piglets (p<0.05) and in consequence the average daily body weight gain (p<0.01) in comparison with the control group of animals. Additionally, piglets which were fed the yeast-whey preparation diet had a higher feed intake (p<0.05) and better feed conversion ratio (p<0.05) than those fed a diet without the addition of this preparation. No significant differences were stated for most biological parameters (p>0.05), except for the blood urea level, which was significantly lower (p<0.05) in the treatments where the yeast-whey preparation was used. These results indicated that yeast-whey preparation efficiently suppressed post-weaning diarrhea and improved the performance of the animals.

Kod svinja, period zalučenja predstavlja stres kako za prasiće tako i za krmaču. Stres u tom periodu je povezan sa promenom ishrane koja može da utiče na fi ziologiju gastrointestinalnog trakta kao i mikrobiološki i imunski status životinja. U eksperimentu, preparat surutke je korišćen da bi se smanjilo zaostajanje u rastu koje je povezano sa smanjenjem unosa hraniva kod prasadi. Prasići su podeljeni u tri grupe u odnosu na tretman. U kontrolnoj grupi (I), životinje su dobijale standardnu smešu hraniva koja se rutinski koristila na farmi. U slučaju druge i treće grupe, odnosno tretmana II i III, dodati su preparati surutke tretirane kvascem u količini od 4 odnosno 7%. Dodavanje preparata surutke u hranivo u koncentraciji od 7%, značajno je povećala težinu telesne mase prasadi (p<0,05), a kao posledica uočeno je povećanje prosečnog prirasta (p<0,01) u poređenju sa kontrolnom grupom. Pored toga, prasad hranjena preparatom surutke tretirane kvascem, imali su veći unos hraniva (p<0,05) kao i bolji odnos konverzije hraniva (p<0,05) u poređenju sa životinjama koje su bile u kontrolnoj grupi, bez dodavanja preparata surutke. U studiji, nisu uočene razlike u odnosu na većinu bioloških parametara (p<0,05), sa izuzetkom koncentracije ureje u krvi koja je bila značajno manja (p<0,05) u grupama koje su primale preparat surutke. Ovi rezultati ukazuju da preparati surutke mogu efi kasno da suprimiraju dijareju koja je prisutna kod prasadi posle zalučenja kao i da poboljša ukupne performanse kod životinja.