MINERAL CONTENT OF THE LIVER OF MEAT BREED CHICKENS

  • V. Yefimov Dnipropetrovs’k State Agrarian and Economic University, Ukraine
  • V. Кibal’chenko Dnipropetrovs’k State Agrarian and Economic University, Ukraine
  • S. Zavrina Dnipropetrovs’k State Agrarian and Economic University, Ukraine
  • М. Spivak ТOV “Plemptakhocombinat “Zaporizkiy”
Keywords: poultry meat, chicken, minerals, liver

Abstract

Background. The liver is one of the major organs, which is deposited a number of minerals. Given that a period of intense development and egg-laying in the body increases mineral metabolism of poultry. The change mineral composition of the liver of meat chickens is not fully understood, there is a need for such studies.Objective. The aim was to study the mineral content in the liver of meat breed chickens.Methods. Liver samples were selected from 82-old-day chickens, 156 - and 312-day age (cross Cobb-500) and 254-day age (cross-Ross 308) from 5 each group. In liver determined the content of calcium, magnesium, copper, zinc, manganese, iron and cobalt by atomic absorption spectrophotometry and total phosphorus by photometric method. Results are expressed per dry weight.Results. The concentration of zinc in the liver of 82-old-day birds average was 207,17±21,85 mg/kg, while the 156-day poultry was lower and amounted to 105,46±11,20 mg/kg (p<0,05). In the 254-day chickens level of the zinc was 180,97±38,13 mg/kg, and 312-day – 179,92±55,57 mg/kg. The level of copper in the liver of 82-day bird was 10,52±0,55 mg/kg. With age, the level of copper storage in the organ were decreased: the concentration of copper in the liver was in the 156-day group was 5,89±0,50 mg/kg, 254-day group 5,79±0,79 mg/kg and 312-day – 7,06±0,28 mg/kg. The content of manganese and cobalt in the liver of chickens of various ages were not significantly different. The concentration of iron in the liver of chickens with age increased: in 82-old-day birds, it was 2 times lower than the 156-day age, while further significant change were not found. Magnesium level was the lowest in the liver 82- and 312-day birds and made 0,34-0,35 g/kg. Calcium concentrations in the liver of 82-day poultry was the highest and amounted to 0,69±0,07 g/kg, later decreased it to 156 - day poultry by 27,5% (p<0.05) and increased in 254- and 312-day birds. The level of phosphorus in the liver of 82-day poultry was the lowest –6,45±0,76 g/kg, the highest value content of element found in liver 156-, 254-day birds (respectively, 1.50 and 1.40 times more than the 82-day).Conclusion. The regularities content of macro- and microelements in the liver of meat breed chickens, namely: 1) reduced levels of calcium, copper and zinc at the beginning and peak of egg-laying;2) increasing of the iron by age of birds;3) increasing concentration of phosphorus that is involved in the formation of the yolk of eggs.

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Author Biographies

V. Yefimov, Dnipropetrovs’k State Agrarian and Economic University, Ukraine
к. вет. н.
V. Кibal’chenko, Dnipropetrovs’k State Agrarian and Economic University, Ukraine
студент
S. Zavrina, Dnipropetrovs’k State Agrarian and Economic University, Ukraine
науковий співробітник
М. Spivak, ТOV “Plemptakhocombinat “Zaporizkiy”
лікар ветеринарної медицини

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How to Cite
Yefimov, V., Кibal’chenkoV., Zavrina, S., & SpivakМ. (1). MINERAL CONTENT OF THE LIVER OF MEAT BREED CHICKENS. Theoretical and Applied Veterinary Medicine, 4(4), 22-28. Retrieved from https://bulletin-biosafety.com/index.php/journal/article/view/43