Metabolism Energy and Viscosity in Response to Cold and Tropical Cereals Area in Leghorn Pullets

Abstract

Environmental aspects could influence metabolism energy and viscosity of cereal in poultry nutrition. Four cereals seeds includes Alvand wheat, Makoie barley (as a cold cereals area), Chamran wheat and Karoun barely (as a tropical cereals area) in Iran were tested for measuring metabolize energy and viscosity. First experiment was arranged by 25 mature rooster using Sibbled methods to examine the metabolize energy. In the second experiment different percentage of cereals in 9 treatments (20 and 40% of Alvand and Makoie wheat and barley respectively) and (20 and 40% Chamran and Karoun, wheat and barley respectively) were used with control diets. The digesta of small intestine viscosity was recorded in the end of this experiment. No significant differences (P>0.05) was observed in gross energy (GE). Apparent metabolism energy (AME), apparent metabolism energy corrected by nitrogen (AMEn) True metabolism energy (TME) and TMEn were significantly higher in wheat than both types of barley. Significant increased (P<0.05) was found in this reflection in AME of Alvand and chamran wheat than both type of barley. In contrast, similar reaction was shown in AMEn, TME and TMEn of Chamran wheat compared with Karoun barley. The lowest significant value (P<0.05) was found in Makoie barley in this respect. There were no significant differences (P<0.05) between feed intake (FI) and feed conversation ratio (FCR) for all treatments. Corresponding with high level of fiber in karoun and Makoie barley, significantly higher (P<0.05) viscosity was observed in karoun barley than other seed. The result of this study has shown that there was a significantly lower (P<0.05) metabolism energy in Makoie barley as a cold cereal area as well as higher viscosity compared with other examined cereals. This was corresponding with high significant (P<0.05) viscosity and high fiber content of cereal.