000109638 001__ 109638 000109638 005__ 20230519145507.0 000109638 0247_ $$2doi$$a10.1016/j.animal.2021.100212 000109638 0248_ $$2sideral$$a126111 000109638 037__ $$aART-2021-126111 000109638 041__ $$aeng 000109638 100__ $$aSamperio, E$$uUniversidad de Zaragoza 000109638 245__ $$aLambs' live weight estimation using 3D images 000109638 260__ $$c2021 000109638 5060_ $$aAccess copy available to the general public$$fUnrestricted 000109638 5203_ $$aThe sheep sector has not suffered the technification that other livestock sectors have. The lack of technological knowledge of the farmers and the economic limitations of the sector have made this technification difficult. One of the most widely used technologies is Precision Livestock Farming (PLF). PLF has already been used in other livestock sectors to improve farming efficiency. In the light of the problem that sheep farmers have in weighing lambs and their low precision, this paper proposes a system for estimating weight by means of 3D image capture. Thus, zenithal images of 272 lambs have been recorded. They have been processed using the capture of the upper area and the average depth of the pixels of the lamb. This estimates the weight of the animal with an error of less than 6%. This technology has a low economic cost and is easy to operate, helping farmers to be more willing to use it. This method manages to reduce the duration of the process, the stress of the animal and to improve the overall accuracy in weight estimation. Thus, it will help to have a greater control of the weight of the animal and to improve the economic profitability that the farmer obtains for the lambs. (C) 2021 The Authors. Published by Elsevier B.V. on behalf of The Animal Consortium. 000109638 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000109638 590__ $$a3.73$$b2021 000109638 592__ $$a0.834$$b2021 000109638 594__ $$a5.7$$b2021 000109638 591__ $$aVETERINARY SCIENCES$$b10 / 145 = 0.069$$c2021$$dQ1$$eT1 000109638 593__ $$aAnimal Science and Zoology$$c2021$$dQ1 000109638 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b8 / 63 = 0.127$$c2021$$dQ1$$eT1 000109638 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000109638 700__ $$0(orcid)0000-0003-2558-982X$$aLidon, I$$uUniversidad de Zaragoza 000109638 700__ $$0(orcid)0000-0002-7891-609X$$aRebollar, R$$uUniversidad de Zaragoza 000109638 700__ $$aCastejon-Limas, M 000109638 700__ $$aAlvarez-Aparicio, C 000109638 7102_ $$15002$$2720$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Proyectos de Ingeniería 000109638 773__ $$g15, 5 (2021), 100212 [8 pp]$$pAnimal$$tANIMAL$$x1751-7311 000109638 8564_ $$s1169586$$uhttps://zaguan.unizar.es/record/109638/files/texto_completo.pdf$$yVersión publicada 000109638 8564_ $$s2830240$$uhttps://zaguan.unizar.es/record/109638/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000109638 909CO $$ooai:zaguan.unizar.es:109638$$particulos$$pdriver 000109638 951__ $$a2023-05-18-15:06:47 000109638 980__ $$aARTICLE