The effect of different levels of lentil by product on growth performance, carcass traits and egg yield in quail (Coturnix coturnix Japonica)

The subject of this study was to evaluate the effects of lentil byproduct (LP) on growth performance, carcass traits and egg yield of quail (Coturnix coturnix Japonica). To achieve this goal, a total of 600 0-day-old quail chicks were used. The birds were divided into 5 groups with 3 replicates. The 1st, 2nd, 3rd, 4th and 5th groups received 0, 5, 10, 15 and 20% lentil byproduct, respectively. All the diets were prepared as isonitrogenous and isocaloric. As a result of this study, the highest live body weights of quails as Laudadio mixed gender were observed in the 3rd (195.5 g) and 5th (195.3 g) groups at the end of the study, however the differences between the control and treatment groups were not significant (p>0.05). Similar results were observed in the carcass traits, as well. The best feed conversion ratio (FCR) was noted in both the 2nd and 3rd groups as 3.04 and it was significantly (p<0.05) different than in the control and other treatment groups. The least feed intake (FI) was observed in the 2nd group. The highest and the lowest egg yield percentages were in the 3rd (90.78 %) and 5th (66.57 %) groups, and differences were significant (p<0.01). Linear increments were observed in the yolk color when LP increased in the diet. As a result, it could be concluded that lentil by product could be added into quail diets up to 15% with no negative effect on live body weight (BW) and carcass traits and to get better yolk color.(AU)

The effect of different levels of lentil by product on growth performance, carcass traits and egg yield in quail (Coturnix coturnix Japonica)

The subject of this study was to evaluate the effects of lentil byproduct (LP) on growth performance, carcass traits and egg yield of quail (Coturnix coturnix Japonica). To achieve this goal, a total of 600 0-day-old quail chicks were used. The birds were divided into 5 groups with 3 replicates. The 1st, 2nd, 3rd, 4th and 5th groups received 0, 5, 10, 15 and 20% lentil byproduct, respectively. All the diets were prepared as isonitrogenous and isocaloric. As a result of this study, the highest live body weights of quails as Laudadio mixed gender were observed in the 3rd (195.5 g) and 5th (195.3 g) groups at the end of the study, however the differences between the control and treatment groups were not significant (p>0.05). Similar results were observed in the carcass traits, as well. The best feed conversion ratio (FCR) was noted in both the 2nd and 3rd groups as 3.04 and it was significantly (p<0.05) different than in the control and other treatment groups. The least feed intake (FI) was observed in the 2nd group. The highest and the lowest egg yield percentages were in the 3rd (90.78 %) and 5th (66.57 %) groups, and differences were significant (p<0.01). Linear increments were observed in the yolk color when LP increased in the diet. As a result, it could be concluded that lentil by product could be added into quail diets up to 15% with no negative effect on live body weight (BW) and carcass traits and to get better yolk color.

Effect of Transient Treatment with Propylthiouracil on Some Reproduction Traits and Live Weight of Japanese Quails

This study was conducted to investigate the effects of transient treatment with propylthiouracil (PTU) on some reproduction traits and live weight of quails. The trial lasted 8 weeks. To accomplish this goal, 700 1-day-old quail chicks were used, randomly divided into 8 groups. PTU was added to feed by 0.1% and 0.5% /wt. The first 4 groups had 0.5% PTU at the age of 2-4, 4-6, 6-8 and 2-8 wk., respectively. The 5 th, 6 th and 7 th groups had 0.1% PTU at the age of 2-4, 4-6 and 6-8 wk., respectively, and the 8 th group was the control with no PTU. Quails were bled at 60 days of age. Then right and left testes were taken out and weighed. At the end of the trail, least square means of the live weight of the treatment groups were higher than the control (p 0.05). Similar results (p 0.05) were observed for testis weight, testis diameter and fertility rate. As a result, it can be said that the inclusion of PTU in quail rations positively affects the live weight and reproduction traits of quails.(AU)

Effect of Transient Treatment with Propylthiouracil on Some Reproduction Traits and Live Weight of Japanese Quails

This study was conducted to investigate the effects of transient treatment with propylthiouracil (PTU) on some reproduction traits and live weight of quails. The trial lasted 8 weeks. To accomplish this goal, 700 1-day-old quail chicks were used, randomly divided into 8 groups. PTU was added to feed by 0.1% and 0.5% /wt. The first 4 groups had 0.5% PTU at the age of 2-4, 4-6, 6-8 and 2-8 wk., respectively. The 5 th, 6 th and 7 th groups had 0.1% PTU at the age of 2-4, 4-6 and 6-8 wk., respectively, and the 8 th group was the control with no PTU. Quails were bled at 60 days of age. Then right and left testes were taken out and weighed. At the end of the trail, least square means of the live weight of the treatment groups were higher than the control (p 0.05). Similar results (p 0.05) were observed for testis weight, testis diameter and fertility rate. As a result, it can be said that the inclusion of PTU in quail rations positively affects the live weight and reproduction traits of quails.

Analyzing growth curves of turkeys reared in different breeding systems (intensive and free-range) with some nonlinear models

The objective of this study was to identify the growth curve of live weight of turkeys reared in different systems (intensive and free- range) with the best mathematical model. To achieve this goal, the live weight of male and female turkeys (Large White) reared for 0-18 weeks were used. Logistic, Gompertz, Von Bertalanffy, and Gauss were used to determine the best model for the turkeys. In comparison of the models, values of Coefficient of Determination (R2), Mean Squares of Error (MSE) and Model Efficiency (ME) were used. In Von Bertalanffy model, the coefficient of determinations for males and females were found as 0.9974 and 0.99915 in intensive system and 0.9794 and 0.9804 in Free-Range system, respectively. As a result of this study, because the highest R2 and the lowest MSE were observed in Von Bertalanffy model, it was the best among the models to identify growth curve of the turkeys.(AU)

Analyzing growth curves of turkeys reared in different breeding systems (intensive and free-range) with some nonlinear models

The objective of this study was to identify the growth curve of live weight of turkeys reared in different systems (intensive and free- range) with the best mathematical model. To achieve this goal, the live weight of male and female turkeys (Large White) reared for 0-18 weeks were used. Logistic, Gompertz, Von Bertalanffy, and Gauss were used to determine the best model for the turkeys. In comparison of the models, values of Coefficient of Determination (R2), Mean Squares of Error (MSE) and Model Efficiency (ME) were used. In Von Bertalanffy model, the coefficient of determinations for males and females were found as 0.9974 and 0.99915 in intensive system and 0.9794 and 0.9804 in Free-Range system, respectively. As a result of this study, because the highest R2 and the lowest MSE were observed in Von Bertalanffy model, it was the best among the models to identify growth curve of the turkeys.