Põrsaste vahelduva imetamise ja võõrutuseelse sotsialiseerumise mõju võõrutusjärgse kõhulahtisuse esinemisele ning emise vabaperioodi pikkusele ja pesakonna suurusele
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Kuupäev
2025
Kättesaadav alates
04.09.2025
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Põrsaste võõrutusjärgne kõhulahtisus on seakasvatuses oluline probleem, mis mõjutab põrsaste tervist ja heaolu. Käesolev uurimistöö keskendub meetodile, mis aitab vähendada võõrutusjärgset kõhulahtisust võõrdepõrsaste hulgas. Uuringus kasutati 130 emist, keda jagati kahte rühma: katserühm (65 emist ja nende pesakonnad) ja kontrollrühm (65 emist ja nende pesakond). Katserühma põrsaid eraldati emisest viis päeva järjest enne võõrutust, ajavahemikus 8.00st 16.00ni ja grupeerides neid vastavalt võõrutusjärgse rühmade moodustamisel. Sellega takistati päevasel ajal põrsaste imetamist, suurendati soodumust tahke toidu söömisele ning teostati võõrutuseelse sotsialiseerumise eesmärgiga vähendada võõrutusjärgset ümbergrupeerumisega ja emisest eraldumisega kaasnevat stressi. Pesakondi kaaluti nädalaste vahedega ja fikseeriti võõrtusjärgsesse kõhulahtisuse esinemine kolme võõrutusjärgse nädala jooksul. Samuti koguti andmeid emiste võõrutusele järgneva vaba perioodi pikkuse ning järgneva pesakonna suuruse kohta. Tulemused näitasid, et vahelduv imetamine suurendas põrsaste starteri tarbimist, kuid mõju kaalutõusule puudus. Katserühma põrsastel esines rohkem võõrutusjärgset kõhulahtisust. Katses osalenud emiste võõrutusjärgne vaba perioodi pikkus, rühmade vahel ei erinenud, kuid katserühma emiste järgmine pesakond oli kontroll rühma omadest suurem.
Post-weaning diarrhea in piglets is a significant issue in pig production, affecting the health and welfare of piglets. The present study focuses on a method aimed at reducing post-weaning diarrhea among weaned piglets. A total of 130 sows were included in the study and divided into two groups: a treatment group (65 sows and their litters) and a control group (65 sows and their litters). In the treatment group, piglets were separated from the sow for five consecutive days prior to weaning, daily from 8:00 to 16:00, and were grouped according to the post-weaning grouping arrangement. This approach restricted suckling during the daytime, promoted solid feed intake, and aimed to facilitate pre-weaning socialization to reduce the stress associated with regrouping and separation from the sow after weaning. Litters were weighed weekly, and the occurrence of post-weaning diarrhea was recorded over the three weeks following weaning. Additionally, data were collected on the length of the sows’ post-weaning non-productive interval and the size of their subsequent litters. The results showed that intermittent suckling increased piglet starter feed intake but had no effect on weight gain. Piglets in the treatment group experienced more post-weaning diarrhea. The duration of the post-weaning non-productive interval did not differ between groups; however, the subsequent litter size of the sows in the treatment group was larger than that of the control group.
Post-weaning diarrhea in piglets is a significant issue in pig production, affecting the health and welfare of piglets. The present study focuses on a method aimed at reducing post-weaning diarrhea among weaned piglets. A total of 130 sows were included in the study and divided into two groups: a treatment group (65 sows and their litters) and a control group (65 sows and their litters). In the treatment group, piglets were separated from the sow for five consecutive days prior to weaning, daily from 8:00 to 16:00, and were grouped according to the post-weaning grouping arrangement. This approach restricted suckling during the daytime, promoted solid feed intake, and aimed to facilitate pre-weaning socialization to reduce the stress associated with regrouping and separation from the sow after weaning. Litters were weighed weekly, and the occurrence of post-weaning diarrhea was recorded over the three weeks following weaning. Additionally, data were collected on the length of the sows’ post-weaning non-productive interval and the size of their subsequent litters. The results showed that intermittent suckling increased piglet starter feed intake but had no effect on weight gain. Piglets in the treatment group experienced more post-weaning diarrhea. The duration of the post-weaning non-productive interval did not differ between groups; however, the subsequent litter size of the sows in the treatment group was larger than that of the control group.
Kirjeldus
Lõputöö
Veterinaarmeditsiini õppekaval
Märksõnad
magistritööd, Escherichia coli, katkendlik imetamine, inna tsükkel, juurdekasv, haigestumine, vaba periood, stress