PSA Nutrition: Amino Acids, Feed Ingredients, and Feed Processing

To determinate the effect of chromium-methionine level in diet on hatchability of Japanese quail in dry tropic weather under temperaturecontrolled in summer season, a completely randomized design experiment was conducted. Thousand two hundred eighty Japanese quail (960 females and 320 males), they were divided in 160 groups of eight (six females and two males), and were allocated in wire cages (25 x 30 cm); groups of four cages (32 quails) formed an observation. The avian were randomized assigned to consume diets (21% CP; 2.9 Mcal DE/kg), in that consist the treatments, containing one of four levels (0, 100, 200 and 400 ppb) of supplemental chromium from chromium-methionine (MicroplexTMZinpro,CO.MN). Chromium 100 ppb increased (P<0.05) the average daily feed intake with relation of the remainder treatments (36.9 vs 36.3 g/day). The hatching was not affect (P>0.20)by treatments (mean value = 78%); egg hatching was similar (P>0.20) across treatments (66%). Supplementation with level of 100 ppb of Cr increased (P>0.05) in 19% the number of newly born quails by day (81 vs 68), and hatchability in 22% (55 vs 67.5%) with respect to control (Cr 0 ppb). Levels of 200 and 400 ppb tended (P=0.11) to decrease in 18% the number of newly born quails by day (68 vs 56) respect to control. Chromium 200 and 400 ppb had similar (P>0.20) hatchability than control (55 vs 46%). It is concluded, that 100 ppb of supplemental Cr from Cr-Met, improve hatchability and newly born quails by day of Japanese quail in dry tropic weather under temperature-controlled in summer season.