05. Realization of genetic potential of productivity of cows of Ukrainian black-motley dairy breed depending on season of calving in conditions of Steppe zone

https://doi.org/10.31073/agrovisnyk201707-05
Kozyr V. S.
Pages: 27-30.

Full article: 
Abstract
The purpose. To investigate influence of season of calving of cows upon realization of genetic potential of their productivity. Methods. Analysis of variance of attributes of milk yield, correlative interaction of breed with amount of lactations. Results. Implementation of genetic potential of productivity of cows of Ukrainian black-motley dairy breed in conditions of steppe zone of Ukraine with optimum toughness and stability of lactation depends on season of their calving. These indexes can be used also as criterion of conformity of ecological conditions to that genotype, and divergence specifies an opportunity of the subsequent selection operation. Conclusions. In steppe zone of Ukraine the genetic potential of productivity with optimum toughness and stability of lactation is more full manifested at calving cows of Ukrainian black-motley dairy breed in I and IV quarters of year.

Key words: breed, season, calving, potential, productivity.

References
  1. Bapabash B.Y. Celektsyia c ychetom byoehepretycheckoj otsehky kopob//Zootexhyia. — 2000. — №4.— C. 20-24.
  2. Bacobckyj H.Z. Bzaymodejctbye rehotyna co cpedoj b nonyliatsyiax molochhoro ckota//Bichyk arpaphoi hayky. — 1997. — №12. — C. 40-44
  3. Jefimehko M.Ja., Podoba B.Je., Ahtohehko B.I., Dzitsiuk B.B. Gehetychhyj mohitopyhr npy kohcolidatsii nopid molochhoi xydoby//Pozbedehhia i rehetyka tbapyh. — K.: Arpapha hayka. — 1999. — Byn. 31-32. — C. 75-77.
  4. Zybetsb M.B., Bypkat B.P., Jefimehko M.Ja., Polynah Ju.P., Kpyrliak A.P. Ppaktychha pezylbtatybhictb hobithix teopij ta metodolorij celektsii//Bichyk arpaphoi hayky. — 2000. — № 12. — C. 73-78.
  5. Melbhyk Ju.F., Mykytac P.Je. Ydockohalehhia modeliubahhia i nporhozybahhia molochhoi npodyktybhocti b ckotapctbi//Tabpijcbkyj haykobyj bichyk. — Xepcoh: Ajlaht. — 2002. — Byn. 3. — C. 86-98.
  6. Hyzhhyk O.M. Ppodobolbcha bezneka b Ykpaihi: ctah ta npoblemy bypishehhia//Ctpateriia ekohomichhoro pozbytky Ykpaihy: Hayk.zb.- K.: KHEY. 2001. — byn. 4. — C. 163-173.
  7. Petpehko Y.P., Byhhychyk D.T. Podbop zhybothblx y kachectbo notomctba//Bichyk arpaphoi hayky.— 1995. — №6. — C. 14-19.
  8. Pybah C.Ju. Cyctema komnlekchoi otsihky belykoi poratoi xydoby//Bichyk arpaphoi hayky. — 2001. — №3. — C. 40-47.
  9. Ejchep F.F. Gehetycheckye ochobbl kpynhomacshtabhoj celektsyy molochhoro ckota//Pobblshehye rehetycheckoro notehtsyala molochhoro ckota. — M.: Arponpomyzdat, 1986. — C. 9-18.