The question of whether the adaptability and production performance in goats may be enhanced using a crossbreeding program between bucks of a native and heat-tolerant breed and does of an exotic and dual-purpose breed was approached and examined herein by comparing purebred Aardi and Damascus goats and their crossbred lines (i.e., 1/2 Aardi 1/2 Damascus (½A½D) and 1/4 Aardi 3/4 Damascus (¼A¾D)) reared in a region characterized by dry and hot
bioclimatic conditions. Twenty-four male 6-month-old kids randomly segregated into four groups (six replicates/group)

Camels arewell adapted to hot arid environments and can contribute significantly to the economy of developing
countries in arid regions of the world. Full understanding of the physiology of camels requires understanding of
the internal temporal order of the body, as reflected in daily or circadian rhythms. In the current study,we investigated
the daily rhythmicity of 20 physiological variables in camels exposed to natural oscillations of ambient
temperature in a desert environment and compared the daily temporal courses of the variables. We also studied

Ten animals from two goat breeds (Aradi and Damascus) raised under heat stress conditions in Saudi Arabia were used in this study to compare the sequence of Heat Shock Proteins-70 gene (HSP70-1) between Aradi and Damascus goats with the reported one of Yunnan black goat (Capra hircus). From the sequence of the above mentioned three breeds Aradi, Damascus and Yunnan, it could be identify that, Damascus goats are more mutant to HSP70-1 gene sequence than other breeds.

A Comparative study on feeding value of Moringa leaves diet (MOD) as a partial replacement for alfalfa hay diet
(AHD) in ewes and goats was carried out. Twenty animals from each group were used in a 6-week experiment.
Each group of the animals was divided into two groups with 10 animals in each group and arranged in a
replicated 2×2 crossover design. Differences in MOD value vs. AHD were analysed by using Student's t-tests.
MOD had significantly (p≤0.05) higher ash, fat, nitrogen-free extracts, metabolizable energy, total phenolic