A farmer-friendly tool for estimation of weights of pigs kept by smallholder farmers in Uganda

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationMakerere Universityen
cg.contributor.crpLivestock
cg.contributor.donorCGIAR Trust Funden
cg.contributor.initiativeSustainable Animal Productivity
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2UG
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierKaren Marshall: 0000-0003-4197-1455en
cg.creator.identifierElizabeth Jane Poole: 0000-0002-8570-794Xen
cg.creator.identifierEmily Ouma: 0000-0002-3123-1376en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1007/s11250-023-03561-zen
cg.isijournalISI Journalen
cg.issn1573-7438en
cg.issue3en
cg.journalTropical Animal Health and Productionen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.ilriANIMAL PRODUCTIONen
cg.subject.ilriPIGSen
cg.subject.impactAreaPoverty reduction, livelihoods and jobs
cg.volume55en
dc.contributor.authorMarshall, Karenen
dc.contributor.authorPoole, Elizabeth J.en
dc.contributor.authorOyieng, Edwinen
dc.contributor.authorOuma, Emily A.en
dc.contributor.authorKugonza, Donald R.en
dc.date.accessioned2023-06-02T09:37:16Zen
dc.date.available2023-06-02T09:37:16Zen
dc.identifier.urihttps://hdl.handle.net/10568/130594
dc.titleA farmer-friendly tool for estimation of weights of pigs kept by smallholder farmers in Ugandaen
dcterms.abstractPig keeping is important to the livelihoods of many rural Ugandans. Pigs are typically sold based on live weight or a carcass weight derived from this; however this weight is commonly estimated due to the lack of access to scales. Here, we explore the development of a weigh band for more accurate weight determination and potentially increased farmer bargaining power on sale price. Pig weights and varied body measurements (heart girth, height, and length) were collected on 764 pigs of different ages, sex, and breed types, from 157 smallholder pig keeping households in Central and Western Uganda. Mixed-effects linear regression analyses, with household as a random effect and the varied body measurements as a fixed effect, were performed to determine the best single predictor for cube root of weight (transformation of weight for normality), for 749 pigs ranging between 0 and 125 kg. The most predictive single body measurement was heart girth, where weight in kg = (0.4011 + heart girth in cm × 0.0381)3. This model was found to be most suitable for pigs between 5 and 110 kg, notably more accurate than farmers’ estimates, but still with somewhat broad confidence intervals (for example, ±11.5 kg for pigs with a predicted weight of 51.3 kg). We intend to pilot test a weigh band based on this model before deciding on whether it is suitable for wider scaling.en
dcterms.accessRightsOpen Access
dcterms.audienceCGIARen
dcterms.audienceDonorsen
dcterms.audienceScientistsen
dcterms.available2023-05-23en
dcterms.bibliographicCitationMarshall, K., Poole, J., Oyieng, E., Ouma, E. and Kugonza, D.R. 2023. A farmer-friendly tool for estimation of weights of pigs kept by smallholder farmers in Uganda. Tropical Animal Health and Production 55:219.en
dcterms.issued2023-06en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringeren
dcterms.subjectswineen
dcterms.subjectanimal productionen
dcterms.typeJournal Article

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