A note on the incidence of udder abnormalities in West African Dwarf goat in South Western Nigeria

摘要

Atotalof589WestAfricanDwarf(WAD)goatswereusedforthisstudytodeterminethefrequencyofoccurrenceofudderabnormalitiesinSouthWesternNigeria.Goatswererearedextensivelybysmall-holderfarmerswhoarethemajorstakeholdersinrearingsmallruminantswithintheregion.Estimatesoffrequenciesofudderabnormalities(supernumeraryteatsandasymmetricaludder)weretaken.Theincidenceofsupernumeraryteatswere5.43%,1.19%and0.68%fordoeswiththree,fourandsixteatsrespectively,whilethenormaltwo-teatconditionhadthehighestfrequency(92.70%).Theobservationofdoeswith6-teatconditionisbeingreportedforthefirsttimeinthisstudy.Percentageofdoeswithasymmetricaludderwas4.92%while95.08%wasrecordedfordoeswithsymmetricaludder.nbsp;Itcanbeconcludedfromthisstudythatthefrequenciesofudderabnormalities(supernumeraryteatsandasymmetricaludder)werelow.Thereisneedforperiodicre-estimationasnewvariationsarebeingintroducedandpossibleevaluationoftheireffectsonreproductivepotentialofthedoe.