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Adaptation strategies in small ruminants (sheep) to thermal stress through nutritional and environmental manipulations in Thar Desert

 

   

 

 

Monitoring of GHG emissions from pasturelands and different feeding systems of animals

A study was conducted at Chandan, Jaisalmer district, Rajasthan, maintaining sheep under continuous grazing system on sewan (Lasiurus scindicus) pasture as per the prescribed carrying capacity. Thirty six (36) growing sheep of Jaisalmeri breed consisting of 32 females and 4 males were divided into four groups, i.e., C1 (Control), and T1 (Treatment) having 6 animal each (5 female +1 male)/hectare as per the standard norm, and C2 (Control), T2 (Treatment) having double grazing pressure (overgrazing) with 12 animals each (11 female+1male) /hectare. Animals of C1 and C2 groups were provided balanced concentrate feed@ 200gms /animal, and health care as per requirements while in the corresponding set, T1 and T2 groups were not provided with any additional supplement.


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Assessment of adaptive capabilities of goat breeds

 


Studies on Sirohi, Jakhrana, Barbari and Jamunapari goat breeds under different climatic conditions in terms of average daily gain, physiological responses, rumen fermentation pattern.

 

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During 2015-2016, three types of pastures viz. natural pasture, improved pasture and sown pasture were established/maintained for execution of grazing or feeding system treatments. Maximum herbage yield was attained under natural pasture (5.65 t DM/ha), however, CP content of herbage mass was higher in sown pasture (8.67 %).


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Adaptive management of small ruminants under grazing conditions to climate change

 

A study is in progress to identify the physiological indicators of stress in grazing small ruminants and to develop consolidated adaptation strategies under grazing conditions. Thirty six Nellore ewes (22.8 ± 2.86 kg) were randomly divided into two comparable groups with eighteen animals in each group and exposed to heat stress during April to June by allowing for grazing for 6 hrs (0800-1200hrs and 1600-1800hrs).



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