Abstract
Objective: The objective of the present study was to determine the effects of mangosteen peel and ginger rhizome on the performance and cholesterol levels of heat-stressed broiler chickens. Materials and Methods: One hundred unsexed day-old commercial broiler chicks were fed one of four experimental diets. Diet T1, the control treatment, contained neither mangosteen peel nor ginger rhizome, diets T2 and T3 contained 5% mangosteen peel and 5% ginger rhizome, respectively and diet T4 contained 2.5% of both mangosteen peel and ginger rhizome. Results: The results indicated that the consumption of diet T4 was significantly higher than that of the other three diets (p<0.05). The mean live weight of broilers fed diets T2 and T4 was significantly greater (p<0.05) than that of broilers fed the control diet. The abdominal fat ratios and cholesterol levels of broilers fed diets T3 and T4 were significantly higher (p<0.05) than that of broilers fed the control diet. Conclusion: The performance of broiler chickens can be enhanced by the addition of mangosteen peel or a combination of mangosteen peel and ginger rhizome to feed formulations. Key words: Cholesterol, mangosteen peel, ginger rhizome, performance, heat stress
Highlights
Metabolizable Energy (ME)Temperature is one of the main factor that negatively affect the performance of broilers and the resulting heat stress threatens broiler farming in tropical countries, such as Indonesia
In order to remedy the negative effects of heat-stress, feed additives, such as mangosteen peel and ginger rhizome have been used as a dietary approach
Diet T1, the control treatment, contained neither mangosteen peel nor ginger rhizome, diets T2 and T3 contained 5% mangosteen peel and 5% ginger rhizome, respectively and diet T4 contained 2.5% of both mangosteen peel and ginger rhizome (Table 1)
Summary
Temperature is one of the main factor that negatively affect the performance of broilers and the resulting heat stress threatens broiler farming in tropical countries, such as Indonesia. Heat-stress has several effects on the health and performance of broiler chickens, which are more susceptible to heat load than slower-growing domestic fowl[1,2]. Broiler chickens are intensively selected for high growth rates, supporting physiological systems have not been considered during selection[4,5]. Several studies have shown that heat-stress impacts the performance, physiology and productivity of chickens, resulting in death and economic losses[8,9,10,11,12]. In order to remedy the negative effects of heat-stress, feed additives, such as mangosteen peel and ginger rhizome have been used as a dietary approach. The objective of the present study was to investigate whether mangosteen peel and ginger rhizome could improve the performance and cholesterol levels of heat-stressed broiler chickens.
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