RUDN Journal of Agronomy and Animal Industries (Dec 2017)

THE DYNAMICS OF THE LIVE WEIGHT THE SHAVER BROWN EGG-LAYING

  • V E Nikitchenko,
  • D V Nikitchenko,
  • M A Merkulov,
  • N V Semenov,
  • I A Shumilov

DOI
https://doi.org/10.22363/2312-797X-2017-12-3-243-252
Journal volume & issue
Vol. 12, no. 3
pp. 243 – 252

Abstract

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The dynamics of growth of the live weight, digestive canal, liver, pancreas in the hens of the Shaver-Brown cross in the egg direction of productivity were studied in postembryonic ontogenesis from 1 day to 476 days of age. It was established that the most intensive growth of the live weight of the bird occurs before the 28-day age. For the period from 1-day to 28-day-old live weight in chickens was increased in comparison with the weight of one-day chickens by 6.52 times, males - 7.61 times; from 1-day to 140-day (puberty period) - in chickens 34.98 times, in cocks - 45.43 times; for the entire postembryonic period (476 days) increased by 45, 93 times, roosters - 60.93 times, respectively. The weight of the ante-rior part of the intestine for the entire postembryonic period increased in 22.19 times, and the males - 27.54 times; the middle part of the intestine is 45.8 and 60.46 times; and the back of the intestine - 81.3 and 72.2 times, respectively. The weight of the liver for the entire postembryonic period in chickens in-creases 35.67 and in males it is 49.9 times. The weight of the pancreas in chickens is increased 70 times and in males it is 82 times.

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