title: A longitudinal study of growing pigs raised by smallholder farmers in the Philippines.
abstract: We conducted a longitudinal study to obtain baseline information about the health and growth of growing pigs raised by smallholder pig raisers in the Philippines, and to test constraints and opportunities to smallholder growing pig production that had been identified in a cross-sectional study [More, S.J., Lee, J.-A.L.M., Lañada, E.B., Taveros, A.A., Cotiw-an, B.S., 1999. Weight-for-age of growing pigs raised by smallholder farmers in the Philippines. Prev. Vet. Med. 41, 151-169]. Using monthly on-farm visits over 12-18 months at two sites, we collected data about 824 growing pigs raised in 115 separate herds. Weight-for-age (median value of 4.8 kg/month) was clustered strongly at the herd level, and the daily ration to growing pigs was substantially deficient (particularly in protein). Using repeated-measures and time-to-event analyses, we identified a range of animal- and herd-level variables associated with increased growth and health. These results confirm results from our earlier study, and suggest that improved nutrition and targeted extension on a range of management issues could be useful.
authors.affiliation: School of Veterinary Science, The University of Queensland, PO Box 125, Kenmore 4069, Australia. jennyt@camden.usyd.edu.au
authors.forename: Jenny-Ann L M
authors.initials: JA
authors.lastname: Lee
authors.forename: Eugene B
authors.initials: EB
authors.lastname: Lañada
authors.forename: Simon J
authors.initials: SJ
authors.lastname: More
authors.forename: Basito S
authors.initials: BS
authors.lastname: Cotiw-an
authors.forename: Alberto A
authors.initials: AA
authors.lastname: Taveros
mesh_terms: D000821:Animal Feed; D000822:Animal Husbandry; D000818:Animals; D001835:Body Weight; D005260:Female; D008137:Longitudinal Studies; D008297:Male; D010679:Philippines; D013552:Swine / Q000254:growth & development*; D013553:Swine Diseases / Q000453:epidemiology; D013997:Time Factors