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Effectiveness of zinc oxide in prophylaxy of post-weaning diarrhoea of pigs

100%

Pejsak Z. , Markowska-Daniel I. , Mokrzycka A. , Szkoda J. , Rutkowska-Pejsak B.

Polish Journal of Veterinary Sciences

1998

tom 01

nr 2

The efficacy of zinc application in the treatment and prevention of diarrhoea in the weaning period of piglets has been demonstrated. However, beside this positive effect some authors suggested the possibility of harmful effects of zinc oxide supplementation on the environment and public health. The aims of the study were to evaluate, in experimental and field conditions, the influence of different doses of ZnO on productivity, losses and body weight gain (b.w.g.) as well as the Zn level in different tissues of pigs. During the first stage of the study three groups of weaned piglets were fed high doses (2 500, 3 000 and 3 500 ppm) of ZnO for 7 days prior to and 14 days after weaning. The best results were observed in the group fed with highest doses of ZnO, in this group daily b.w.g. was 26 grams higher in comparison with the controls. Tissue samples from muscles and selected organs (liver, kidneys, pancreas, heart and brain) were taken from experimental pigs at slaughter after the animals had reached a body weight of about 100kg. The results of toxicological examination indicated that 14-days of treatment with high doses of ZnO have no influence on zinc concentration in tissues. Field experiments aimed at safety and evaluation of the usefulness of ZnO on the prophylaxy of post weaning diarrhoea, performed in 8 farms, demonstrated reduction of diarrhoea symptoms from about 48 to 15%. In summary, it may be concluded that short-term application of ZnO in prevention of post weaning diarrhoea is efficient for pigs and does not influence zinc concentration the fatteners tissues.

Okres poodsadzeniowy - jeden z trudniejszych w zyciu prosiecia

84%

Salach T.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

2002

nr 11

Results of piglet rearing and the length of the weaning-to-service interval in primiparous sows kept in different types of farrowing pens

67%

Bugnacka D.

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego

2009

tom 05

nr 4

Postepowanie z prosietami w okresie odsadzenia

59%

Mroczek J.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

2005

nr 04

13-14

Obserwacje nad wplywem kolejnego oproszenia, sezonu i liczby prosiat odsadzonych w miocie na dlugosc jalowienia u loch

51%

Falkowski J. , Groszkowska A.

Acta Academiae Agriculturae ac Technicae Olstenensis. Zootechnica

1994

tom 40

55-61

Analizą objęto 872 hodowlane lochy: 472 rasy polskiej białej zwisłouchej (pbz) - (użytkowane w latach 1981-1990) i 931 ich miotów oraz 400 rasy duroc - (użytkowanych w latach 1984 - 1991) i 958 pochodzących od nich miotów. Stwierdzono wpływ sezonu i kolejnego miotu na długość okresu jałowienia badanej populacji loch. Okres odpoczynku u loch rasy pbz był w sezonie letnim istotnie dłuższy w porównaniu z pozostałymi sezonami. Lochy rasy duroc jałowiły najkrócej w miesiącach od marca do maja, a najdłużej od września do listopada. Długość okresu jałowienia u loch obu badanych ras ulegała skróceniu do 3 miotu. Nie zaobserwowano wpływu liczby prosiąt odsadzonych w miocie na długość okresu zasuszenia.

872 sows were subject to an analysis: 472 ones of the Polish Landrace (used within the years 1981-1990) and their 931 litters, and 400 ones of the Duroc race (used within the years 1984-1991) and 958 litters delivered by them. The influence of the season and successive parturition on the weaning - conception interval of the examined population of sows was found out. The resting period for Polish Landrace sows was significantly longer in the summer season than it was in the other season The Duroc race sows were barren for the shortest period of time between March and May, am for the longest period of time between September and November. The weaning-conception interval in sows of both analized races was getting shorter till the 3rd litters. However, no influence of the number of weaned pigs in a litter on the length of the drying-off period m observed.