Two experiments were conducted to evaluate the protein requirement of adult bobwhite quail. Flight-type quail were used in one experiment and meat-type quail in the other. Corn and soybean meal diets containing 12, 15, 18, 21, and 24% protein were fed. Increasing the protein level of the diet from 12 to 15% significantly increased egg production with the flight-type bird. However, only a nonsignificant increase in egg production was obtained with the meat-type birds when the protein level was increased to 15%. Higher levels of protein did not result in further increases in egg production in either strain. Increasing the protein from 12 to 18% (flight) or 21% (meat) resulted in increased egg weight. Egg mass of flight-type hens receiving 18 and 21% protein was significantly greater than egg mass from hens receiving 12 and 15% protein. Hatch of fertile eggs, hatch of total eggs, chick weight, or weight of adult birds were not affected by protein level. Feeding the 12% protein diet resulted in significantly reduced fertility in the flight-type birds but not in the meat-type birds.

A5×2 factorial design experiment, included five levels of dried distillers grains by soluble, DDGS, (0, 7.5, 15, 22.5 and 30% in the diet) and two levels of enzyme supplementation (without and 0.5 g enzyme/kg diet) through 1-9 weeks of the age. A total number of 300 Saso broiler chicks one week old were randomly divided into 10 treatment groups each of 30 chicks, with three replicates each of 10 chicks. Each experiment group was allotted on one of the experimental diets to study the effect of DDGS in the diet with or without Avizyme supplementation on growth performance (live body weight, body weight gain, feed consumption and feed conversion) of Saso broiler. The results indicated that no significant effects of DDGS levels were detected on body weight (BW) at all studied ages (1, 5 and 9 weeks of age). Body weight gain (BWG) was significantly (P<0.05) affected due to DDGS levels only at the period of 5-9 weeks of age. It is worth noting that, the best BWG was found in 22.5% DDGS group (29.20 g/day), followed by that of 30% DDGS (27.67 g/day) compared with the control and the other DDGS levels. Chicks fed the 30% DDGS diet consumed more feed compared with the control and other DDGS levels. During the period of 1-5 weeks of age, the best feed conservation ratio (FCR) (1.75) was found in 7.5% DDGS group. While, the group of 22.5% DDGS gave the best FCR value (3.15) during 5-9 weeks of age. Results noticed that chicks fed diets supplemented with Avizyme gained more weight compared to those fed unsupplemented diet. Results showed that, feed intake was insignificantly effected during all experimental periods studied, while feed conversion was significantly (P<0.05) improved due to Avizyme supplementation during 5-9 and 1-9 weeks of age compared to the control. The interaction between DDGS levels and enzyme supplementation was significant (P<0.05) on BW at 5 weeks of age, BWG and FC at the first period (1-5 weeks of age). Chicks fed diet contained 22.5% DDGS supplemented with enzyme improved values of live body weight at 9 weeks of age, body weight gain and FC during all the experimental periods. In conclusion it could be concluded that, DDGS could be used in Saso broiler diets up to 22.5% with enzyme supplementation (0.5 g/kg diet) without adverse effect on their growth performance.

Twenty New Zealand white (NZW) rabbits doe of 6 months of age were randomly divided into four groups (5 does in each group). The first group was fed on the basal diet as control, while the other three groups were fed on diets containing either 15, 20 or 25% Leucaena leaf meal (LLM),respectively. Chemical composition, digestibility coefficients, productive and reproductive performance were studied. Results obtained could be summarized as follows :Number of total kits born and number of kits born alive gradually decreased with increasing LLM in the diets from 0-25%.Body weight change in does during gestation period due to incorporated LLM in the diets was tended to be in positive balance. While does body weight change during suckling period were tended to be in negative balance. Feed intake which includes feed consumption by pups before weaning, increased with increasing the level of LLM in their diets.Milk yield on feeding levels 0,15 and20% (2.42,2.20 and2.26 kg/doe) was not significantly different, but milk yield of does feeding levels 25%LLM(1.91kg/doe)were significant (P<0.05)lower than other treatments or the control group.Litter size, litter weight and litter weight gain at birth,21days and weaning age were generally tended to be lower (P<0.05) with increasing LLM in the diets. Feed conversion ratio tended to be higher (P<0.05)by doe rabbits fed LLM diets compared with the control diet.Increasing the dietary LLM resulted significant decrease in digestibility coefficients of DM,OM,CP,CF,NFE and feeding values expressed as DCP,TDN% and DE(Kcal/Kg).On the other hand EE digestibility was not affected by LLM addition.Does fed a diet contained 20%LLM decreased the cost of feed relatively to the selling price of total weaned pups and increased considerably the economical efficiency in comparison to the control and other treatment.From the nutritional and economical efficiency points of view, the leucana leaf meal could be used up to 20% in pregnant and lactating rabbit does without deleterious effect on their performance.

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