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Reproductive Failure in Goats in Norway: An Investigation in 24 Herds
Reproduksjonstap hos geit i Norge. En undersøkelse i 24 besetninger
Acta Veterinaria Scandinavica volume 32, pages 535–541 (1991)
Abstract
Twenty-four flocks comprising 2370 breeding goats were examined. Threehundred-and-sixty-nine (15.6 %) of the goats either aborted or delivered dead kids at full term, or were barren. In 23 of the herds the rate of reproductive loss ranged from 2 % to 36 %, whereas in one herd all of 54 mated goats had live kids. A loss of ≥ 20 % was found in 9 herds comprising 799 goats. In 11 herds comprising 946 goats the rate of reproductive failure was ≤ 10 %. The incidence of reproductive failure was higher in older goats than in those in their first or second pregnancy. The causes were identified in only about 3 % of the goats that aborted. It is concluded that reproductive failure in many flocks probably is associated with non-infectious causes such as nutritional and environmental factors.
Sammendrag
Undersøkelsen ble foretatt i den vestlige del av Norge i 24 besetninger med i alt 2370 geiter. Av disse var det 369 (15.6%) som enten aborterte eller fødte dode kje, eller som var tomme. I 23 av besetningene varierte tapsprosenten meilom 2 og 36, mens i en besetning fikk alle geitene levende kje. I 9 besetninger med totalt 799 geiter var det minst 20 % som ikke fikk levedyktige kje. I 11 besetninger med 946 geiter var tapet på grunn av drektighetsforstyrrelser ≤ 10%. Abort forekom med storre hyppighet hos eldre geiter enn hos geiter som kjeet for første eller anden gang. Årsaken ble påvist i bare ca. 3 % av tilfellene. Konklusjonen er at reproduksjonsproblemet i mange flokker sannsynligvis har samband med ikke-infeksiøse faktorer som ernæring og miljø.
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Waideland, H., Loken, T. Reproductive Failure in Goats in Norway: An Investigation in 24 Herds. Acta Vet Scand 32, 535–541 (1991). https://doi.org/10.1186/BF03546955
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DOI: https://doi.org/10.1186/BF03546955