Abdelhafid KELI

Dr. Abdelhafid KELI

orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 December 2008 in Livestock Science
Verified
Journal Article
Closed access
AKAbdelhafid KELI
Abdelhafid KELI
DAD. Andueza
D. Andueza
AVA. de Vega
A. de Vega
JGJ.A. Guada
J.A. Guada

13 January 2022 in Ruminants
Verified
Journal Article
Open access
PDF file
Youssef ChebliYoussef Chebli
Youssef Chebli
SOSamira El Otmani
Samira El Otmani
JHJean-Luc Hornick
Jean-Luc Hornick
AKAbdelhafid KELI
Abdelhafid KELI
JBJerôme Bindelle
Jerôme Bindelle
MCMouad Chentouf
Mouad Chentouf
The aim of this study was to evaluate the feeding behaviour of indigenous goats and the selection drivers of different plant species in a Mediterranean forest rangeland. To achieve this goal, the seasonal variations in terms of forage availability and quality of ingested plant species were studied during three grazing seasons. In the same period, eight indigenous goats of Beni Arouss breed were selected to explore the seasonal changes in their browsing behaviour. Forage quality was determined by the hand-plucking technique. The results showed a wide seasonal variation in forage availability and quality, and feeding behaviour. Woody species were more selected independently of the season (p < 0.001). The crude protein content varied from 53.3 g/kg of dry mater (DM) for Erica arborea in summer to 197 g/kg DM for Calicotome villosa in autumn (p < 0.001). Despite the high condensed tannins content in selected shrubs, they were highly consumed. In vitro organic matter digestibility (IVOMD) and metabolizable energy (ME) had recorded the highest contents in herbaceous during spring. Shrubs and trees contain the lowest levels of IVOMD (<500 g/kg) and ME (<7.2 MJ/kg) during autumn and summer. It is concluded that seasonal changes in forage availability and quality did not necessarily affect the indigenous goats’ preference. These findings could help goat herders to develop feeding and grazing systems while increasing the performance of goats in the Mediterranean silvopastoral system.
1

1 February 2011 in Livestock Science
Verified
Journal Article
Closed access
JMJ.A.S. Morais
J.A.S. Morais
TBT.T. Berchielli
T.T. Berchielli
AVA. de Vega
A. de Vega
MQM.F.S. Queiroz
M.F.S. Queiroz
AKAbdelhafid KELI
Abdelhafid KELI
SSS.F. Souza
S.F. Souza

1 June 2013 in Livestock Science
Verified
Journal Article
Closed access
AAA.R. Askar
A.R. Askar
TGT.A. Gipson
T.A. Gipson
RPRyszard Puchala
Ryszard Puchala
KTK. Tesfai
K. Tesfai
GDG.D Detweiler
G.D Detweiler
AGA.L. Goetsch
A.L. Goetsch

1 September 2011 in Livestock Science
Verified
Journal Article
Closed access
ITI. Tovar-Luna
I. Tovar-Luna
RPRyszard Puchala
Ryszard Puchala
TGT.A. Gipson
T.A. Gipson
GDG.D. Detweiler
G.D. Detweiler
LDL.J. Dawson
L.J. Dawson
AGA.L. Goetsch
A.L. Goetsch

20 January 2022 in Sensors
Verified
Journal Article
Open access
PDF file
Youssef ChebliYoussef Chebli
Youssef Chebli
SOSamira El Otmani
Samira El Otmani
JHJean-Luc Hornick
Jean-Luc Hornick
AKAbdelhafid KELI
Abdelhafid KELI
JBJerôme Bindelle
Jerôme Bindelle
JCJean-François Cabaraux
Jean-François Cabaraux
The Global Positioning System (GPS) and sensors technologies are increasingly used to study the grazing behavior of animals. This work was conducted to understand the grazing behavior and energy balance of goats browsing in forest rangeland using GPS and sensors technologies. Forage availability was estimated using the quadrat method during three grazing seasons. Simultaneously, eight indigenous goats were selected to explore their feeding behavior, grazing activities, and energy requirements. The experimental goats were fitted with GPS collars and leg sensors to monitor their grazing activities. At the same time, direct observation was used as a method to study their feeding behavior. Forage availability was higher during spring compared to the summer and autumn seasons. Goats recorded the highest biting rate during summer and autumn (about 22 bites/min). The highest intake rate was recorded during spring (5.6 g DM/min). During spring, goats spent most of their time on grazing (48%) in contrast to the summer and autumn (<31%; p < 0.001). They prolonged their lying down time in summer at the expense of standing duration. The time devoted exclusively to grazing (eating) was longer in spring. Walking time in summer and autumn was longer than in spring (p < 0.001). During summer and autumn, the energy balance of goats under grazing conditions was in deficit. Using GPS collars and leg sensors appears to be a useful and easily replicable method to explore and understand the seasonal changes in the grazing areas and activities of goats in a mountainous region. The results could help goat herders and managers to develop feeding and grazing systems while increasing the performance of goats in the Mediterranean forest rangeland.
1