Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165943
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSILVA, G. A. da
dc.contributor.authorSANTOS, S. A.
dc.contributor.authorMEIRELLES, P. R. de L.
dc.contributor.authorPINHEIRO, R. S. B.
dc.contributor.authorGÔLO, M. P. S.
dc.contributor.authorFRANCO, J. L.
dc.contributor.authorPERES, I. A. H. F. S.
dc.contributor.authorMOURA, L. F.
dc.contributor.authorCOSTA, C.
dc.date.accessioned2024-07-24T14:56:46Z-
dc.date.available2024-07-24T14:56:46Z-
dc.date.created2024-07-24
dc.date.issued2024
dc.identifier.citationAgriculture, v.14, n.7, 1154, 2024.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1165943-
dc.descriptionThe Pantanal has been facing consecutive years of extreme drought, with an impact on the quantity and quality of available pasture. However, little is known about how locally adapted breeds respond to the distribution of forage resources in this extreme drought scenario. This study aimed to evaluate the movement of free-grazing Pantaneiro sheep using a low-cost GPS to assess the main grazing sites, measure the daily distance traveled, and determine the energy requirements for walking with body weight monitoring. In a herd of 100 animals, 31 were selected for weighing, and six ewes were outfitted with GPS collars. GPS data collected on these animals every 10 m from August 2020 to May 2021 was analyzed using the Python programming language. The traveled distance and activity energy requirements (ACT) for horizontal walking (Mcal/d of NEm) were determined. The 31 ewes were weighed at the beginning and end of each season. The available dry matter (DM) and floristic composition of the grazing sites were estimated at the peak of the drought. DM was predicted using power regression with NDVI (normalized difference vegetation index) (R2 = 0.94). DM estimates averaged 450 kg/ha, ranging from traces to 3830 kg/ha, indicating overall very low values. Individual variation in the frequency of use of grazing sites was observed (p < 0.05), reflecting the distances traveled and the energetic cost of the activity. The range of distances traveled by the animals varied from 3.3 to 17.7 km/d, with an average of 5.9 km/d, indicating low energy for walking. However, the traveled distance and ACT remained consistent over time; there were no significant differences observed between seasons (p > 0.05). On average, the ewes’ initial weight did not differ from the weight at the drought peak (p > 0.05), indicating that they maintained their initial weight, which is important for locally adapted breeds as it confers robustness and resilience. This study also highlighted the importance of the breed’s biodiverse diet during extreme drought, which enabled the selection of forage for energy and nutrient supplementation. The results demonstrated that precision tools such as GPS and satellite imagery enabled the study of animals in extensive systems, thereby contributing to decision-making within the production system.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectAdaptação da raça
dc.subjectOvino pantaneiro
dc.titleTracking free-ranging Pantaneiro sheep during extreme drought in the Pantanal through precision technologies.
dc.typeArtigo de periódico
dc.subject.thesagroOvino
dc.subject.thesagroHabito Alimentar
dc.subject.thesagroHabitat
dc.subject.nalthesaurusSheep
dc.subject.nalthesaurusMonitoring
riaa.ainfo.id1165943
riaa.ainfo.lastupdate2024-07-24
dc.identifier.doihttps://doi.org/10.3390/agriculture14071154
dc.contributor.institutionGIANNI AGUIAR DA SILVA, UNIVERISIDADE ESTADUAL PAULISTA; SANDRA APARECIDA SANTOS, CPPSE; PAULO ROBERTO DE LIMA MEIRELLES, UNIVERISIDADE ESTADUAL PAULISTA; RAFAEL SILVIO BONILHA PINHEIRO, UNIVERISIDADE ESTADUAL PAULISTA; MARCOS PAULO SILVA GÔLO, UNIVERSIDADE DE SAO PAULO; JORGE LUIZ FRANCO, UNIVERSIDADE DE SAO PAULO; IGOR ALEXANDRE HANY FUZETA S PERES, CPAP; LAYSA FONTES MOURA, UNIVERSIDADE ESTADUAL PAULISTA; CINIRO COSTA, UNIVERSIDADE DE SAO PAULO.
Appears in Collections:Artigo em periódico indexado (CPAP)

Files in This Item:
File Description SizeFormat 
agriculture-14-01154-ovinos-Pantanal.pdf2.01 MBAdobe PDFThumbnail
View/Open
Show simple item record

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace