Age-related changes in linear proportions of sheep axial skeleton bones

UDC 636.064.6

Gogaev O.K., Kesaev Kh.E., Demurova A.R., Bestaeva R.D., Dzeranova A.V., Kusova V.A.

Summary. Mating schemes were used with a large number of breeds and sheep breed groups, the offspring of which also requires integrated assessment of productivity and morphobiological features while creating crossbreeding of sheep. Issues of the formation of the skeletal system in the post-embryonic period of life are especially poorly studied. The aim of the study was to examine the linear dimensions of bones of the sheep axial skeleton of different origin. Two groups of rams were formed. Lambs, obtained from fine-coarse-wooled ewes and rams of the breed Romney marsh were included in the first group. The second control group consisted of lambs with fine wool obtained from the same ewes and rams of the Prekos breed. Slaughter of rams at birth and at the age of 4 months (5 heads from each group) was carried out to explore the skeletal system. Authors established that the origin and the age had a definite impact on linear growth of bones of axial skeleton of the experimental lambs. After birth the intensity of linear growth of Calvary was lower (growth coefficient - 1.93) than in the spine (growth coefficient - 2.49), as a result, the relative length of the first during suckling period decreased on average by 3.67% at the spine, on the contrary, increased by the same amount. The spine of experimental lambs in the embryonic period more intensively developed in length than in weight, as a result at birth the length of the spine grew by 37.1-43.1% to the length of the spine at the age of 4 months and weight by 11,0-12,2%. Fine wool young sheep at the age of 4 months had the best performance on precocity length Calvary and spine.

Keywords: skeleton, growth, development, young sheep, young crossbreds, fine wool, spine, Calvary, cervical division, lumbar division, caudal division.

References:

1. Kosilov V.I., Andrienko D.A., Shkilev P.N Osobennosti lineynogo rosta i razvitiya molodnyaka ovets stavropolskoy porody [Peculiarities of linear growth and development of young growth of sheep of Stavropol breed]. - Orenburg SAU. - Orenburg, 2009 (1 (21)). - pp. 88-90.

2. Kosilov V.I., Shkilev P.N., Nikonova E.A. Razvitie oporno-dvigatelnogo apparata molodnyaka ovets tsigayskoy, stavropolskoy i yuzhnouralskoy porod pod vliyaniem pola i vozrasta [Development of musculoskeletal system of young sheep of Tsigay, Stavropol and South Ural breed under influence of gender and age]. -Orenburg SAU. - Orenburg, 2013 (4 (42)). - pp. 132-136.

3. Kesaev Kh.E., Gogaev O.K., Bestaeva R.D., Demurova A.R. Rost i razvitie nekotorykh myshts osevogo skeleta molodnyaka ovets [Growth and development of some muscles of axial skeleton of young sheep]. - GSAU. - Vladikavkaz, 2011 (48). - pp. 68-70.

4. Kesaev Kh.E., Gogaev O.K., Kusova V.A. Zootekhnicheskaya kharakteristika ovets groznenskoy porody plemzavoda «Chervlenye Buruny» Respubliki Dagestan [Zootechnical characteristics of sheep of Grozny breed in breeding farm «Chervlenye Buruny» of the Republic of Dagestan]. - GSAU. - Vladikavkaz, 2013 (50 (1)). - pp. 134-138.

5. Kesaev Kh.E., Gogaev O.K., Bestaeva R.D., Kusova V.A. Zakonomernosti vesovogo rosta myshts perifericheskogo skeleta u molodnyaka ovets [Regularities of weight of the muscle of peripheral skeleton of young sheep]. - GSAU. - Vladikavkaz, 2013 (50 (4)). - pp. 53-57.

6. Kesaev Kh.E., Gogaev O.K., Bestaeva R.D., Demurova A.R. Rost i razvitie nekotorykh myshts osevogo skeleta molodnyaka ovets [Growth and development of some muscles of axial skeleton of young sheep]. - GSAU. - Vladikavkaz, 2011 (48 (2). - pp. 68-70.

7. Gogaev O.K. Ispolzovanie vostochno-frizskikh baranov dlya uluchsheniya ovets v Severnoy Osetii-Alanii [Use of East Friesian sheep for improvement of sheep in the Republic of North Ossetia-Alania]. - Zootekhniya. - Moscow, 2001 (9). - pp. 9-11.

8. Gogaev O.K. Produktivnye kachestva i morfobiologicheskie osobennosti krossbrednykh ovets raznogo proiskhozhdeniya v usloviyakh otgonno-gornogo soderzhaniya Severnogo Kavkaza [Productive qualities and morphological features of crossbreeding sheep of different origin in distant-mountain maintenance of the North Caucasus]. - Vladikavkaz, 2003. - 49 p.

9. Ismailov I.S., Gogaev O.K. Myasnaya produktivnost pomesey raznogo proiskhozhdeniya [Meat productivity of hybrids of different origin]. - Sheep, goats and wool production. - Moscow, 2003 (1). - pp. 19-20.

10. Gogaev O.K., Kesaev Kh.E., Demurova A.R. Zakonomernosti formirovaniya kozhi i sherstnogo pokrova krossbrednykh ovets v usloviyakh Tsentralnogo Predkavkazya [Regularities of skin and wool formation of crossbreeding sheep in conditions of the Central Caucasus]. - GSAU. - Vladikavkaz, 2012 (49 (3)). - pp. 100-113.

11. Gogaev O.K., Kesaev Kh.E., Gattsiev U.S., Demurova A.R. Nagul molodnyaka ovets romanovskoy porody v usloviyakh predgornoy zony Severnogo Kavkaza [Graziery of young sheep of Romanov breed in the conditions of a foothill zone of the North Caucasus]. - GSAU. - Vladikavkaz, 2015 (52 (4)). - pp. 93-98.

12. Kesaev Kh.E. Gattsiev U.S., Demurova A.R., Gogaev O.K. Rost molodnyaka ovets romanovskoy porody v usloviyakh predgornoy zony Severnogo Kavkaza [Growth of the young sheep of the Romanov breed in the conditions of a foothill zone of the North Caucasus]. - GSAU. - Vladikavkaz, 2015 (52 (4)). - pp. 98-103. 13-16. Vide supra.

Author affiliation:

Kesaev Khetag E., D.Sc. in Agriculture, professor of the department of technology of production, storage and processing of livestock products of the Gorsky State Agrarian University; 37, Kirova st., Vladikavkaz, 362040; e-mail: texmen2@mail.ru.

Demurova Albina R., Ph.D. in Agriculture, docent of the department of private private zootechny of the Gorsky State Agrarian University; 37, Kirova st., Vladikavkaz, 362040; e-mail: texmen2@mail.ru.

Bestaeva Rita D., Ph.D. in Agriculture, docent of the department of private private zootechny of the Gorsky State Agrarian University; 37, Kirova st., Vladikavkaz, 362040; e-mail: texmen2@mail.ru.

Dzeranova Alyona V., Ph.D. in Agriculture, docent of the department of private private zootechny of the Gorsky State Agrarian University; 37, Kirova st., Vladikavkaz, 362040; e-mail: texmen2@mail.ru.

Kusova Valentina A., Ph.D. in Agriculture, docent of the department of private private zootechny of the Gorsky State Agrarian University; 37, Kirova st., Vladikavkaz, 362040; e-mail: texmen2@mail.ru.

Responsible for correspondence with the editorial Board: Gogaev Oleg K., D.Sc. in Agriculture, professor, head of the department of technology of production, storage and processing of livestock products of the Gorsky State Agrarian University; 37, Kirova st., Vladikavkaz, 362040; phone: 8-918-828-97-60; e-mail: texmen2@mail.ru.