Analysis of interbreeding and age-dependent indexes of reproductive ability of cows.

Irina  Bondarenko; Kristinа Velikodna

doi:10.32845/bsnau.vet.2020.2.7

Irina Bondarenko Sumy National Agrarian University https://orcid.org/0000-0002-1019-3446
Kristinа Velikodna Sumy National Agrarian University https://orcid.org/0000-0001-9205-891X

DOI: https://doi.org/10.32845/bsnau.vet.2020.2.7

Keywords: Key words: cows, heifers of mating age, number of hotels per year, anaphrodisia, fruitless inseminations.

Abstract

Comparative estimation of the periods sexual cycle under futile inseminations cortex and heifers sexual mature age in facilities Sumy region.

The profitability of dairy farming in the farms of Sumy region will remain an unresolved issue to this day, as the indicators of reproductive capacity of breeding cows and repair heifers need analysis and correction. Inadequate feeding and inadequate care of pregnant cows and parturients are often added to this. As a consequence of the above - the reproductive capacity inherent in this species of animals is not fully realized, most cows remain infertile, and farms are short of calves and milk. The percentage of barren animals can be calculated only at the end of the calendar year, taking into account the data of statistical reporting, while infertility must be fought daily. Detection of infertile animals is effective only in the case of regular obstetric and gynecological medical examinations on the farm. It is during this time that experts find out the causes and calculate the percentage of the main components of infertility, which includes anaphrodisia. The article presents the results of the study of the main folds of anaphrodisia of cows and repair heifers of the experimental farm of Sumy region. The results of obstetric and gynecological examination, indicators of reproductive capacity of cows and heifers of mating age, reflect the basis of technology used in the economy, the intensity of use of breeding stock, as well as determine the economic feasibility of livestock in general. The main indicators of reproductive capacity of cows in the conditions of livestock farms are: indicators of inseminations, fertility, number of hotels, indicators of fruitless inseminations, and also duration of the service period The aim of the research was to study and analyze the components of anaphrodisia of cows and repair heifers of the farm during the experimental years. The results obtained will be a criterion for assessing the state of reproductive function of the uterine population of cattle. The research was conducted at Kosivshchynska Agricultural Company, Sumy District, Sumy Region, on Holstein-Friesian cows during 2019-2020. The main indicators of reproduction of uterine cattle were studied on the basis of annual reports. The obtained digital material was processed by methods of variation statistics using Student's parametric t-test. It was found that a significant percentage of culled animals occurred due to functional disorders of reproductive ability, namely due to repeated and ineffective inseminations. It was found that in 2019, 19.3% showed a sexual cycle after calving in less than 30 days, in 2020 - 18.9%, in 31-60 days in 2019 - 27%, in 2020 - 26%, in 61 -90 days in 2020 - 52.7%, in 2019 - 51.8%, for 91-120 days in 2019 - 22.1%, in 2020 - 23.5%. There is a steady growth of the service period, which worsens the performance of the experimental economy. It was found that the largest percentage of culled cows and repair heifers were animals with anaphrodisia: in 2019 33.7% of the total number of culled animals, in 2020 - 51.10%. The number of inseminations during the experimental years decreased, and the insemination index increased : in 2019 it was equal to 60, and in 2020 -80. Studies in this area highlight the problem of infertility in cattle, which encourages the study of this issue, and the search for ways to solve this problem.

References

References
1. Vasilenko, T.F. (2004). Alteration of estrus manifestation in postpartum cows by the application of food additives from cows placenta tissue. Proc. XIX Int. Congr. Zool. Chines Acad.Sci, 522 –525. (in Russian).
2. Vasylenko, T.F., Chermnыkh, N.A., Roshchevskyi T.F. (2007). Fyzyolohyia reproduktyvnoi funktsyy u samok dykykh y domashnykh zhvachnуkh zhyvotnуkh. KhKh Sezd Fyzyolohycheskoho obshchestva ymeny Y.P.Pavlova: Tezysы dokladov, 22. (in Russian).
3. Kharuta, H. & Vlasenko V. (2002). Efektyvnist stymuliatsii ta synkhronizatsii stadii zbudzhennia statevoho tsyklu u vysokoproduktyvnykh koriv. Veterynarna medytsyna Ukrainy, 11, 23-31. (in Ukrainian).
4. Bencharif, D., Tainturier, D., Slama H. (2000). Prostaglandins and postpartum period in the cow. Revuede-Medecine-Veterinaire, 151, 5, 401–408.
5. Bondarenko, I., Lazorenko, A., & Krajewsky, A. (2019). Structural and morphological changes of endometrium related to ovary cycle and condition of genital function of cows. Bulletin of Sumy National Agrarian University. The Series: Veterinary Medicine, (3 (46), 9-22. https://doi.org/10.32845/bsnau.vet.2019.3.2 (in Ukrainian).
6. Goral's'kij LP, Homich VT, Konons'kij OІ (2011). Osnovi gіstologіchnoї tekhnіki і morfofunkcіonal'nі metodi doslіdzhen' u normі ta pri patologії [Fundamentals of histological technique and morphofunctional methods of research in normal and pathology]. ZHitomir, Polіssya, 288 s. (in Ukrainian).
7. Boltovskaya, M.N. (2002). Rol' ehndometrial'nyh belkov i kletok – producentov v reprodukcii cheloveka. [The role of endometrial proteins and producing cells in human reproduction] Moskva, avtoreferat dissertacii na soiskanie uchenoj stepeni doktora biologicheskih nauk, 49 s. (іn Russian).
8. Bhutani K.K. (2004). Effect of Symplocos racemosa Roxb. on gonadotropin release in immature female rats and ovarian histology. Journal of Ethnopharmacology, 94(1), 197–200.
9. Brsikyan SG, (1990). Morfo-funkcional'nye izmeneniya v organah razmnozheniya u korov pri subinvolyucii matki i poslerodovom ehndometrite. [Морфо-функциональные изменения в органах размножения у коров при субинволюции матки и послеродовом эндометрите] Moskva, avtoreferat dissertacii na soiskanie uchenoj stepeni kandidata veterinarnyh nauk, 16 s. (іn Russian).
10. Gunin AG, Sharov AA, (1998). Role of mast cells in oestradiol effects in the uterus of ovariectomized rats. Journal of Reproduction and Fertility 113, 1, 61-68.
11. Ilyina O, Zadorozhna Т, Ilyin I, (2006). The endometrial pinopodes investigation in women with unexplained infertility. Virchows Archiv, 447, 2, 739.
12. Riordan, N. H., Morales, I., Fernández, G., Allen, N., Fearnot, N. E., Leckrone, M. E., et al. (2018). Clinical feasibility of umbilical cord tissue-derived mesenchymal stem cells in the treatment of multiple sclerosis. J. Transl. Med. 16:57. doi: 10.1186/s12967-018-1433-7.
13. Ren, H., Sang, Y., Zhang, F., Liu, Z., Qi, N., and Chen, Y. (2016). Comparative analysis of human mesenchymal stem cells from umbilical cord, dental pulp, and menstrual blood as sources for cell therapy. Stem Cells Int. 2016:3516574. doi: 10.1155/2016/3516574 (in English).
14. Kuchma MD, Kyryk VM, Svitina HM, Shablii YM, Lukash LL, Lobyntseva GS, Shablii VA, Kuchma MD. (2015). Cоmparative analysis of the hematopoietic progenitor cells from placenta, сord blood and fetal liver, based on their immunophenptype. BioMed Research International, 16, Article ID 418752, doi:10.1155/2015/418752.
15. Pittenger, M. F., Discher, D. E., Péault, B. M., Phinney, D. G., Hare, J. M., and Caplan, A. I. (2019). Mesenchymal stem cell perspective: cell biology to clinical progress. NPJ Regen. Med. 4, 1–15. doi: 10.1038/s41536-019-0083-6.
16. Korneeva IE, SHurshalina AV, Feosistov AA, (2005). Drugie patologicheskie izmeneniya matki i ehndometriya, kak prichina besplodiya. [Other pathological changes of the uterus and endometrium as a cause of infertility] Besplodnyj brak. Sovremennye podhody k diagnostike i lecheniyu. Moskva, GEHOTAR– Media, S. 616. (іn Russian).
17. Kostishin, Є.Є. (1999). Osoblivostі morfologіchnoї strukturi і trofіchnoї funkcії placenti korіv ta rozvitku ploda. [Features of morphological structure and trophic function of cow placenta and fetal development] L'vіv, avtoreferat disertacії na zdobuttya naukovogo stupenya kandidata veterinarnih nauk, 19 s. (in Ukrainian).
18. Leung, S.T. (2004). The effects of lipolysaecharide and interleukinsllalpha, 2 and-6 on oxytocin receptor expression and prostaglandin production in bovine endometrium. Journal of Endocrinology 44, 524.
19. Nikitina, LA, Sadekova, ON, Rashidov, TN, Voloschuk, IN, Bochkov, VN, Demidova, EM, Samokhodskaya, LM, & Tkachuk, VA. (2007). Reccurent early pregnancy loss endometrium is accompanied by decreased VEGF and increased PlFG gene expression. Abstract Book of 3d EMBIC Summer School., Jena, Germany. 6, 9-17.
20. Tomitova EA, (2011). Morfofunkcional'noe sostoyanie polovyh organov yachih pri razlichnyh fiziologicheskih sostoyaniyah. [Morphofunctional state of the genitalia of cells in various physiological states]. Materialy nauchno-prakticheskoj konferencii «Aktual'nye problemy veterinarnoj nauki i praktiki Sibiri, posvyashchennoj 85-letiyu Respublikanskogo gosudarstvennogo upravleniya veterinarii Buryatskoj respublikanskoj nauchno-proizvodstvennoj veterinarnoj laboratorii, Ulan-Udeh, S. 119-124. (іn Russian).
21. Vlasov, SA. (2000). Fetoplacentarnaya nedostatochnost' u korov. [Fetoplacental insufficiency in cows]. Voronezh, Voronezhskij gosudarstvennyj agrarnyj universitet, 221 s. (іn Russian).