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The Effect Of Grower Diet Energy Level On The Performance And Some Slaughtering Characteristics Of Sex-Separated And Mixed-Sex Broilers, Veysel Ayhan, Mehmet Bozkurt
The Effect Of Grower Diet Energy Level On The Performance And Some Slaughtering Characteristics Of Sex-Separated And Mixed-Sex Broilers, Veysel Ayhan, Mehmet Bozkurt
Turkish Journal of Veterinary & Animal Sciences
This study examined 936 Ross-308 sex-separated broilers (468 males and 468 females) at 22 days of age. The chicks were fed with standard broiler starter diet for the first 21 days. Isonitrogenic grower diets (3045 versus 3222 kcal/kg M.E.) were offered to broilers housed in sex-separated and mixed-sex pens from days 22 to 43 during the experimental period. The final body weight of sex-separated chicks (1739.91 g) was greater than that of mixed-sex chicks (1714.81 g) at 43 days of age (P < 0.05). Neither growing method nor diet energy level had a significant effect on the body weight (except at 43 days of age) or body weight gain of broilers. However, effects of sex was significant (P < 0.01) on the body weight and body weight gain of broilers throughout the trial period. Sex-separated males were heavier than mixed-sex males at 36 and 43 days of age (P < 0.05). However, the diet energy level and growing method had no significant effect on feed consumption or the feed conversion rate (P > 0.05). Broilers consumed a high energy diet had a higher carcass yield and breast rate (%), but diet …
The Effect Of Dietary Phytase Supplementation On The Fattening Performance And Mineral Balance Of Broilers, Mustafa Mi̇di̇lli̇, Ö. Hakan Muğlali, Müjdat Alp, Neşe Kocabağli, M. Ali̇ Tanör, Gülçi̇n S. Toklu
The Effect Of Dietary Phytase Supplementation On The Fattening Performance And Mineral Balance Of Broilers, Mustafa Mi̇di̇lli̇, Ö. Hakan Muğlali, Müjdat Alp, Neşe Kocabağli, M. Ali̇ Tanör, Gülçi̇n S. Toklu
Turkish Journal of Veterinary & Animal Sciences
This study was carried out to determine the effect of the supplementation of microbial phytase in broiler feeds based on corn and soybean meal, to investigate its effect on broiler performance, dressing percentage and bone mineralization. In this experiment, 2000 1-day-old Ross 308 broiler chicks were used in five groups, each consisting of 400 chicks. Two of the groups were chosen as control groups (positive and negative), and the others were used as experimental groups. Each treatment group was divided into four replicates of 100 chicks. The first control group was fed a diet containing inorganic phosphorous but not phytase; …