عنوان مقاله [English]
The frog larva is animal that exist abundantly in lakes and ponds. Iran has a good potential for fosterage and expansion of frog larva, that this is due to warm and dry and humid climate qualification (especially in the north and south of country) and desert areas and abundance lakes. The aim of this research was studied a new food material from animal origin in the name of frog larvae powder use possible for nutrition poultry. For this purpose experiments conducted in two stages. First stage, the samples which needed, were collected from ponds and lakes and after drying and grinding for approximate analysis and determine amount of minerals, was chemical analyzed by method of AOAC (1990). Also, powder metabolism energy from frog larvae by mature young cock, were determined by method of Sibbald (1982). Second stage, impact of the frog larvae powder, was studied in the diet of broiler chickens at levels of 0, 2.5 and 5 percent. Body weight gain, feed intake, feed conversion at the end of growth periods, and the final total period, were analyzed and evaluated. At the end of period from any iteration in each treatment, two chickens were killed to determine the weight of breasts, thighs, abdominal fat, liver, gizzard, heart and intestines. The frog larvae powder in 5 percent level in comparison with other treatments caused significantly a lower feed conversion ratio (P<0.05). The level of control treatment and level of 5 percent in comparison with level 2.5 percent of larvae powder were caused significantly more increase of weight (P<0.05). In terms of DMI, there was not significant difference between control and treatment level of 5 percent, but there was a significant difference between treatment and control levels 2.5 percent of larvae (P<0.05). Also different levels of frog larvae did not creation significantly effect on the components of corpse.