Poultry growth intensity and breed differences in the exchange of phosphorum compound

Abstract

: The article presents the results of studying the age-related dynamics of the content of phosphorus compounds in tissues. The age-related dynamics of adenine nucleotides in the liver of animals shows that in the liver of chickens of both breeds, the content of adenine dinucleotides increases with age, reaching the maximum level in the Plymouth breed up to three months, and in New Hampshire up to six months. In the first, the content of adenine nucleotides at the early stages of ontogenesis was significantly higher, but in the following age periods, the indicators by breed converged. The level of NF in the liver of Plymouth chickens at the early stages of ontogenesis was significantly higher than that of New Hampshire chickens. Until the age of two years, the content of NF in the liver of chickens of both breeds was determined at approximately the same level. The content of KrF increased with age to a greater extent in the tissues of fast-growing chickens. The exceptions, as before, were Plymouth chickens, in which, despite relatively slow growth, the content of KrF in muscles was determined at approximately the same level as in white Plymouth chickens, which had the most intensive growth. The total content of phosphorus compounds (FPK+ATP+ADP+CrF+NF) was the highest, as expected, in the muscles of intensively growing animals. The conducted studies showed that in most cases there is a direct relationship between the intensity of growth and the level of energy-rich phosphorus compounds in the tissues - intensive growth correlates with a high level of macroergy. These processes in body tissues are integrated and condition each other.