The present experiment was conducted in semi-intensive management system to observe the effect of herbal additives amla (Emblica officinalis) and giloy (Tinospora cordifolia) either single or in combination on the physiological parameters of Magra lambs. Twenty eight Magra lambs of 3-4 months of age were selected for conducting the feeding trial in the semi-intensive system for 90 days. The lambs were randomly distributed into four experimental groups of seven lambs in each group in the semi-intensive system in a randomized block design (RBD) in such a manner that the initial body weights were remain similar in all the groups. Herbal feed additive Amla (Emblica officinalis) fruit powder with seed and Giloy (Tinospora cordifolia) stem powder were supplemented at level of 1.5g/kg body weight with concentrate as oral/feed supplemented in T1 and T2 group, respectively except control group and T3 in semi-intensive management system. Group T3 were supplemented with the combination of Amla (Emblica officinalis) fruit powder and Giloy (Tinospora cordifolia) stem powder at the level of 0.75g/kg body weight each with concentrate as oral/feed. At the end of experiment, no significant changes were found in rectal temperature and respiration rate though; they were within normal physiological range. At the end of experiment it appears that incorporation of 1.5g/kg body weight giloy stem powder can be used as a part of the strategy as it is effective to alleviate heat stress in lambs in the semi-intensive system of arid zone of Rajasthan.

Physiological parameters, Magra, Amla, Giloy

It could be concluded that supplementation of the herbal feed additives Amla (Emblica officinalis) and Giloy (Tinospora cordifolia) in the diets of Magra lambs had no adverse effect on physiological parameters in the semi-intensive management system.

Abhishek Joshi, Nirmala Saini, Arun Kumar Jhirwal, Umesh Kumar Prajapat and S.C. Goswami (2023). Effect of herbal additives amla (Emblica officinalis) and giloy (Tinospora cordifolia) on physiological parameters of Magra lambs under semi-intensive management system in the arid zone of Rajasthan. Biological Forum – An International Journal, 15(8): 215-218.