Article (Scientific journals)
Estimation of Grazing Activity of Dairy Goats Using Accelerometers and Global Positioning System
Chebli, Youssef; El Otmani, Samira; Hornick, Jean-Luc et al.
2022In Sensors, 22 (15), p. 5629
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Keywords :
Electrical and Electronic Engineering; Biochemistry; Instrumentation; Atomic and Molecular Physics, and Optics; Analytical Chemistry
Abstract :
[en] The recent development of advanced electronic sensors to monitor and record animal grazing activity provides a real opportunity to facilitate understanding of their behavioral responses. This study aimed to characterize the grazing activity and protein–energy requirements of grazing dairy goats in a Mediterranean woodland in northern Morocco by combining two sensors, the Global Positioning System (GPS) and three axis accelerometers. An experiment was conducted in a representative woodland with eight dairy goats. Measurements were undertaken during the three main grazing seasons (spring, summer, and autumn) for two consecutive and contrasting years. Grazing activity parameters were assessed using GPS collars and leg position sensors. The results showed that grazing time was higher in spring (57% and 59%) than in summer (39% and 36%) and autumn (41% and 45%), respectively, for the dry and wet years (p < 0.001). During the two studied years, the daily horizontal distance traveled by the goats increased from spring (about 4.5 km) to summer (about 6.5 km) and autumn (about 7.4 km), while greater daily vertical distances were recorded over similar distances during summer–autumn. Several protein–energy intakes that were insufficient to cover the requirements of the grazing goats were recorded, especially in summer. The combination of GPS collars and accelerometers contributed to a better understanding of the grazing activities of dairy goats in the studied Mediterranean woodland. These findings provide useful data on the protein–energy balances of dairy goats and offer additional information that could be useful for herders and managers to enhance goat-feeding strategies and guarantee high-performance in the semi-extensive traditional goat farming system.
Disciplines :
Animal production & animal husbandry
Environmental sciences & ecology
Veterinary medicine & animal health
Author, co-author :
Chebli, Youssef  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH)
El Otmani, Samira 
Hornick, Jean-Luc  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Productions animales durables
Bindelle, Jérôme  ;  Université de Liège - ULiège > Département GxABT > Ingénierie des productions animales et nutrition
Cabaraux, Jean-François  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Productions animales durables
Chentouf, Mouad 
Language :
English
Title :
Estimation of Grazing Activity of Dairy Goats Using Accelerometers and Global Positioning System
Publication date :
2022
Journal title :
Sensors
ISSN :
1424-8220
eISSN :
1424-3210
Publisher :
MDPI AG
Volume :
22
Issue :
15
Pages :
5629
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ARES CCD - Academy for Research and Higher Education. Development Cooperation Committee [BE]
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since 30 July 2022

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