REPRODUCTIVE BIOLOGY INDICATORS OF THE FIRST TIME MA-TURED RAINBOW TROUT FEMALES IN THE CONDITIONS OF THE FOOTHILL ZONE OF UZBEKISTAN

Authors

  • Sulaimonov Sh.Kh Tashkent State Agrarian University, Tashkent, Uzbekistan,
  • Kim S.I Tashkent State Agrarian University, Tashkent, Uzbekistan,
  • Alimova A.T Tashkent State Agrarian University, Tashkent, Uzbekistan
  • Kamilov B.G Tashkent State Agrarian University, Tashkent, Uzbekistan

Keywords:

Rainbow trout, Oncorhynchus mykiss, oocytes, Uzbekistan

Abstract

 

 The parameters of the reproductive biology of rainbow trout female (Oncorhynchus mykiss), grown from imported fertilized eggs in the conditions of the Tashkent region of Uzbekistan were studied. Females of the studied generation reached their first sexual maturity at the age of 3 when they reached a total body length of 40-66 (55.2) cm, a total body weight of 1370 - 5450 (2963.6) g. Mass of gonads at stage IV in fish sampled for incubation campaign was 300 - 900 (532.4) g. The absolute fecundity was 2520 - 15660 (5981.4) eggs. The sizes of individual eggs varied in the females of the herd 3.6 - 6.0 mm, the average indi-vidual sizes of mature eggs were on average 4.43 - 5 (4.86) mm in the herd

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Published

2021-11-26

Issue

2021: ICHES-2021

Section

Articles

How to Cite

REPRODUCTIVE BIOLOGY INDICATORS OF THE FIRST TIME MA-TURED RAINBOW TROUT FEMALES IN THE CONDITIONS OF THE FOOTHILL ZONE OF UZBEKISTAN. (2021). Conference Zone, 30-32. https://conferencezone.org/index.php/cz/article/view/14