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Behaviour of sheep freely grazed on Gökçeada Island (Turkey) rangeland reclaimed by different methods

Published online by Cambridge University Press:  20 March 2017

C. TÖLÜ Open the ORCID record for C. TÖLÜ [Opens in a new window] ,
F. ALATÜRK ,
A. ÖZASLAN PARLAK  and
A. GÖKKUŞ
C. TÖLÜ*
Affiliation:
Department of Animal Science, Faculty of Agriculture, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
F. ALATÜRK
Affiliation:
Department of Crop Science, Faculty of Agriculture, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
A. ÖZASLAN PARLAK
Affiliation:
Department of Crop Science, Faculty of Agriculture, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
A. GÖKKUŞ
Affiliation:
Department of Crop Science, Faculty of Agriculture, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
*
*To whom all correspondence should be addressed. Email: cemiltolu@comu.edu.tr
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Summary

Extensive sheep and goat farming is common in the rangelands of Gökçeada Island, NW Turkey. The aim of the current study was to investigate the behaviour of indigenous Gökçeada sheep over these rangelands and factors influencing their behavioural characteristics. Grubbing (with chisel ploughing to a depth of 20 cm), burning (the entire top part of plants) and cutting (10–15 cm stalk on the surface of the soil) were carried out on selected rangeland to reduce prickly burnet (Sarcopoterium spinosum (L.) Spach) from the vegetative covering, then forage crop seeds were sown to improve plant cover. Forty head of Gökçeada-bred sheep were placed in eight fenced plots (half seeded, half unseeded) on reclaimed and natural rangeland for 2 years. Sheep behaviour was observed for a period of 1 year. Each plot was arranged with a stocking rate of 2·67 sheep/ha and contained five sheep that grazed freely within each plot. Sheep behaviour was observed diurnally through direct observation by time sampling (10 min) and continuous sampling methods. During the period of 1 year, the observed sheep spent an average of 0·53 of their time grazing in daylight, 0·30 of their time in rangelands on other activities and 0·17 in the paddocks. Significant differences were observed in the time of grazing, resting, locomotion and rumination by season. The highest grazing ratio was noticed in spring while the lowest was in summer. Sheep exhibited walking behaviour 10·6 times/day. The sheep mostly (0·66) grazed on prickly burnet throughout the year although, when available, they tended to prefer herbaceous plants. The behaviour of sheep in the two natural (unreclaimed) plots was significantly different from those placed in other plots, mainly due to the mass of prickly burnet shrub found in the natural plots.

Type
Animal Research Papers
Information
The Journal of Agricultural Science , Volume 155 , Issue 6 , August 2017 , pp. 993 - 1004
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Copyright
Copyright © Cambridge University Press 2017 

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