Two studies were conducted to assess the production environment and genetic potential for milk quality of Siquijor native cattle.

A survey was conducted to assess the socio-economic profile and production management systems of the smallholder farmers in Siquijor.  In a purposive sampling done, a total of 48 respondents were selected to participate in the study.  Results of the socio-economic survey revealed that farm size and tenurial status significantly affected the income level of the farmers.  Among the support services, marketing assistance significantly influenced the farmer’s income.  Under the management practices, cattle population was significantly associated with farmer’s income.

A total of 265 animals were screened for the k-casein gene.  Results showed that among the three genotypes AA, AB and BB, k-casein gene frequency was higher in AA genotype leading to higher frequency of allele A than allele B.  In general, genotype AA for k-casein was more common in Siquijor native cattle population.  Therefore, k-casein was found to be a useful marker for milk production traits on which Siquijor native cattle can be evaluated and selected for future breeding programs.