Lehmade üleminekupiimast eraldatud IgG söödalisandi kasutamise mõju võõrdepõrsaste massi-iibele
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Kuupäev
2025
Kättesaadav alates
05.09.2025
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Magistritöö on osa laiemast uurimisprojektist, mille eesmärgiks oli hinnata
immunoglobuliinirikka (IgG-rikka) söödalisandi mõju võõrdepõrsaste ööpäevasele massiiibele.
Põrsaste võõrutamine on seafarmide jaoks üks kriitilisemaid perioode, mis mõjutab
oluliselt loomade tervist, heaolu ja jõudlusnäitajaid. Võõrutamisega kaasnevad mitmed
stressifaktorid, nagu eemaldamine emisest, üleminek kuivsöödale ja järsult muutunud
keskkond, mis võivad põhjustada stressi ja omakorda soodustada seedehäirete tekkimist,
kasvu pidurdumist ja suurendada vastuvõtlikkust haigustele. Seetõttu otsitakse pidevalt
uusi lahendusi, mis aitaksid leevendada võõrutusjärgset stressi ja toetada põrsaste arengut.
Käesoleva magistritöö eesmärk oli uurida lehmade üleminekupiimast eraldatud IgG-rikka
söödalisandi mõju võõrdepõrsaste ööpäevasele massi-iibele. Töö raames viidi läbi
kontrollitud söötmiskatse, kuhu kaasati 40 juhuslikult valitud emise pesakonda. Katsesse
kaasati igast pesakonnast 5 juhuslikult valitud võõrdepõrsast. Kokku moodustati kolm
rühma: IgG rühm, kontrollrühm (vadak) ja võrdlusrühm (ilma lisandita). Tulemused
näitasid, et põrsaste ööpäevane mässi-iive oli enim mõjutatud kindlate perioodiliste ja
individuaalsete tegurite kaudu. Kuigi antud uuringus leiti, et IgG-lisand ei avaldanud
märkimisväärset mõju võõrdepõrsaste juurdekasvule, võib IgG-rikaste söödalisandite
kasutamine anda uusi perspektiive võõrutusjärgse stressi leevendamiseks.
The master's thesis is part of a broader research project that aimed to evaluate the effect of immunoglobulin-rich (IgG-rich) feed additive on the daily mass increase of weanpiglets. Weaning piglets is one of the most critical periods for pig farms, which has a significant impact on animal health, welfare and performance indicators. Weaning is accompanied by a number of stress factors, such as removal from the sow, switching to dry feed and a sharply changed environment, which can cause stress and in turn promote the development of digestive disorders, growth retardation and increased susceptibility to diseases. Therefore, new solutions are constantly being sought to help alleviate postweaning stress and support the development of piglets. The aim of this master's thesis was to investigate the effect of an IgG-rich feed additive extracted from cows' transitional milk on the daily mass gain of weaning piglets. As part of the work, a controlled feeding experiment was carried out, involving 40 randomly selected sow litters. 5 randomly selected weaned piglets from each litter were included in the experiment. A total of three groups were formed: the IgG group, the control group (whey) and the control group (without supplementation). The results showed that the daily increase in piglets was most affected by certain periodic and individual factors. Although this study found that IgG supplementation did not have a significant effect on weaning piglet gain, the use of IgGrich feed additives may provide new perspectives for relieving post-weaning stress.
The master's thesis is part of a broader research project that aimed to evaluate the effect of immunoglobulin-rich (IgG-rich) feed additive on the daily mass increase of weanpiglets. Weaning piglets is one of the most critical periods for pig farms, which has a significant impact on animal health, welfare and performance indicators. Weaning is accompanied by a number of stress factors, such as removal from the sow, switching to dry feed and a sharply changed environment, which can cause stress and in turn promote the development of digestive disorders, growth retardation and increased susceptibility to diseases. Therefore, new solutions are constantly being sought to help alleviate postweaning stress and support the development of piglets. The aim of this master's thesis was to investigate the effect of an IgG-rich feed additive extracted from cows' transitional milk on the daily mass gain of weaning piglets. As part of the work, a controlled feeding experiment was carried out, involving 40 randomly selected sow litters. 5 randomly selected weaned piglets from each litter were included in the experiment. A total of three groups were formed: the IgG group, the control group (whey) and the control group (without supplementation). The results showed that the daily increase in piglets was most affected by certain periodic and individual factors. Although this study found that IgG supplementation did not have a significant effect on weaning piglet gain, the use of IgGrich feed additives may provide new perspectives for relieving post-weaning stress.
Kirjeldus
Magistritöö
Loomakasvatuse õppekaval
Märksõnad
magistritööd, IgG, põrsaste kasv, üleminekupiim