Evaluation of pre-slaughter and slaughter data from lechon-size black tiaong and kalinga native pigs (Organic farm) and landrace, large white and their F1 crosses (conventional farm)

Abstract

© 2017, Department of Science and Technology. All rights reserved. This study aimed to compare pre-slaughter and slaughter data from 40 lechon-size pigs belonging to native breeds (i.e., Black Tiaong and Kalinga) raised in an organic production system and commercial breeds (i.e., Landrace, Large White, and their F1 crosses) obtained from a conventional swine breeding farm. Native breeds had significantly (p<0.01) longer head and snout, shorter ears and body length, wider shoulders but narrower rump width, lower rump height, and larger neck circumference than commercial breeds. Native breeds had significantly lower live weight (p<0.05) but were older at slaughter (p<0.01) than commercial breeds. Hot carcass weight including the head, hot dressing percentage, and % chilled carcass yield were lower in native breeds. Weight of head, stomach, female reproductive organs, and blood were significantly heavier (p<0.01) in native breeds than commercial breeds. Weight of liver, kidneys, spleen, and small intestines were however, significantly heavier (p<0.01) in commercial breeds. The % edible internal organs and body parts in native breeds was significantly higher in terms of head, ears, stomach, visceral fats, and female reproductive organs but significantly lower (p<0.05) in terms of the liver, kidneys, and small intestines compared to commercial breeds. The slaughter parameters above may have direct implications on production targets of those involved in our country’s lechon value chain. No significant differences (p>0.05) were found between types of production system in terms of weight loss during transit, tail length, wither height, heart girth, midriff girth, and flank girth, chilled carcass weight and drip loss percentage, and weight of ears, tail, heart, lungs, large intestines, and visceral fats.

Source or Periodical Title

Philippine Journal of Science

ISSN

317683

Page

411-423

Document Type

Article

Subject

Lechon-size pigs, Native/commercial breeds, Organic/conventional pig production systems, Slaughter data

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