Abstract

Background: Philippine native pigs (Sus scrofa domesticus L.) are valuable animal genetic resources because of their adaptability to low input farming systems, yet localized phenotypic data in Isabela Province remain limited. Methods: A survey of 209 native pigs (boars, sows, and gilts) was carried out in six municipalities in Isabela Province. Pigs were randomly selected from farms. Researchers recorded physical traits like coat color, ear type, and tail type, as well as body measurements such as body length and heart girth, following FAO guidelines. Results: Most native pigs showed uniform phenotypic traits, including absence of prominent tusks, straight snout and head profiles, erect forward-facing ears, black coat color, straight hair, smooth skin, and straight backlines. Curly tails were more frequent in males, while females more commonly had straight tails. Morphometric measurements were relatively consistent, with females generally exhibiting larger body dimensions than males. Conclusion: The phenotypic characteristics observed are consistent with other Philippine native pig populations and recognized strains reported by DOST-PCAARRD such as ISUbela®, Bohol and Romblon. These findings provide baseline improvement, and sustainable utilization of native pig genetic resources in Isabela Province.

Keywords Native Philippine native pigs, Phenotype, Morphometry, Province of Isabela

ANA 24022026 Download