Reproductive Qualities of Romanov Sheep with Regard to the Paratypic Factors
V. I. Hodov1, D. Abylkasymov2, N. P. Sudarev, О. V. Abrampalskaya2, P. I. Migulev2

1V.I. Hodov, Federal State Budgetary Educational Institution of Higher Education “Tver State Agricultural Academy”, Tver, Russia.
2D. Abylkasymov, Federal State Budgetary Educational Institution of Higher Education “Tver State Agricultural Academy”, Tver, Russia.
3N.P. Sudarev, Federal State Budgetary Educational Institution of Higher Education “Tver State Agricultural Academy”, Tver, Russia.
4О.V. Abrampalskaya, Federal State Budgetary Educational Institution of Higher Education “Tver State Agricultural Academy”, Tver, Russia.
5P.I. Migulev, Federal State Budgetary Educational Institution of Higher Education “Tver State Agricultural Academy”, Tver, Russia.

Manuscript received on October 13, 2019. | Revised Manuscript received on 22 October, 2019. | Manuscript published on November 10, 2019. | PP: 3897-3901 | Volume-9 Issue-1, November 2019. | Retrieval Number: A4986119119/2019©BEIESP | DOI: 10.35940/ijitee.A3912.119119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The article discusses the results of own studies of the authors, the literature data, and the best practices of Romanov sheep breeding. The research was performed at the two Romanov sheep pedigree breeding units in the Tver region, LLC Rassvet and LLC PF Pokrov. This breed has several advantages, such as the possibility of insemination in any season, early maturing, multiparity, the quality of sheepskin, and the taste of the lamb meat. The authors studied the productivity and the reproductive ability of ewes depending on the season, the age of insemination, the live weight, the birth type of the lamb crop. More lambs are obtained in the lambings during the autumn and winter from the ewes after three and more lambings. The survival rate is higher in the winter and summer lambings. The optimal time of insemination is 12 – 13 months. At these farms, three lambings were obtained in two years.
Keywords: The Age at First Insemination, Birth Type, Ewes, Lamb Crop Survival Rate, Lambs’ Weaning, Lambing, Live Weight, Polyestricity, Reproductive Ability, Romanov sheep.
Scope of the Article: Healthcare Informatics