[Combination of rapeseed (Brassica napus) and barley in the feeding of broilers. I. Nutritional aspects].
A total of 160 chicks were distributed into three experimental and control groups. Each group had two blocks, males and females, and during their two growing periods of 0-40 and 41-70 days, the four groups received isocaloric and isoproteic diets. The metabolic energy of sorghum (2,000 kcal) in the control groups was replaced by the combination of rapeseed and barley, in the proportions of 34.0, 67.0 and 83.5%, respectively, in the experimental groups. The results obtained by the treatments did not show any significant difference (P less than or equal to 0.05) in weight gains, feed consumption and feed conversion during the whole growing period of the chickens. On the other hand, throughout the two development stages of the animals, there were differences (P less than or equal to 0.05 and P less than or equal to 0.01) in average weight gains between the male and female blocks in the experimental and control groups. The results of the present trial suggest that the association of rapeseed and barley may have a place as a satisfactory energy source in the formulation of broiler diets. Considering the constant increase of rapeseed production in the southern part of Chile, and the deficiency of energetic foods in chicken rations, rape has shown to be a good substitute and has been found to meet the basic requirements.
D000821:Animal Feed; D000818:Animals; D001937:Brassica; D002645:Chickens / Q000254:growth & development*; D002523:Edible Grain; D005260:Female; D001467:Hordeum; D008297:Male; D012737:Sex Factors
Combinación de semilla de colza (Raps) (Brassica napus) y cebada en la alimentación de pollos de engorde (broilers). I. Aspectos nutricionales.