Abstract
In recent years, the aim of dairy cattle breeding was to increase milk productivity traits. However, there is an observed decrease of fertility traits of cows, and, as a result, early culling of animals. This is due to the fact that causes of decreased reproduction are sometimes impossible to determine and its signs are difficult to estimate. One of the causes for decreasing fertility of cows is the decline in the quality of oocytes capable of fertilization. Therefore, a study into the ratio between the number and quality of oocytes capable of fertilization and the level of milk productivity in cows, as well as association with polymorphic variants of the GH, PRL, and Pit-1 genes, is of scientific interest. The aim of this study was to determine the dependence of the quality and quantity of cow COC obtained post mortem on the level of milk productivity and genetic profile for the genes GH, PRL, and Pit-1. There was high frequency of allele L of the GH gene, 0.942; allele A of the PRL gene, 0.889; and allele B of the Pit-1 gene, 0.710. High average content of COC per ovary was obtained in a group of animals with LL genotype of the GH gene (LL to LV +7.54 units, p ≤ 0.05), and a significant portion of them were viable (LL to LV +4.5 units, p ≤ 0.05). In individuals with the AA genotype of the PRL gene, the average number of isolated viable COC per ovary was higher than in those with the AB genotype (+4.84 units, p ≤ 0.05). Analysis of the association of polymorphic variants of the Pit-1 gene with the quantity and quality of COC did not reveal significant differences in the studied group of individuals. Assessment for the relationship of polymorphic variants of the studied genes with the breeding value (BV) indices of milk productivity, milk fat, and protein content showed that only animals with the LV genotype exceeded their peers with the LL genotype of the GH gene in milk fat and protein content by 8.3 kg (p ≤ 0.05) and 6.0 kg (p ≤ 0.01), respectively. Average calculated breeding value based on quantity of COC of individuals in the studied groups revealed no significant difference.
Similar content being viewed by others
REFERENCES
Jonas, E. and Koning, D.J., Genomic selection needs to be carefully assessed to meet specific requirements in livestock breeding programs, Front. Genet., 2015, vol. 6, p. 49. https://doi.org/10.3389/fgene.2015.00049
LeBlanc, S., Assessing the association of the level of milk production with reproductive performance in dairy cattle, Reprod. Develop., 2010, vol. 56, no. S, pp. S1–S7. https://doi.org/10.1262/jrd.1056S01
Yakovlev, A.F. and Plemjashov, K.V., Molecular markers in the increase of dairy cattle reproduction, Anim. Genet. Breed., 2017, no. 4, pp. 3–11.
Yudin, N.S. and Voevoda, M.I., Molecular genetic markers of economically important traits in dairy cattle, Russ. J. Genet., 2015, vol. 51, no. 5, pp. 600–612. https://doi.org/10.7868/S0016675815050082
Grin, N., Staut, U., and Taylor, D., Biologiya, Moscow, 1990.
Shimizu, T., Murayama, C, Sudo, N., Kawashima, C, Tetsuka, M., and Miyamoto, A., Involvement of insulin and growth hormone (GH) during follicular development in the bovine ovary, Anim. Reprod. Sci., 2008, vol. 106, nos. 1–2, pp. 143–152. https://doi.org/10.1016/j.anireprosci.2007.04.005
Ola, S.I., Ai, J.S., and Liu, J.H., Effects of gonadotropins, growth hormone, and activin on enzymatically isolated follicle growth, oocyte chromatin organization, and steroid secretion, Mol. Reprod. Dev., 2008, vol. 75, pp. 89–96. https://doi.org/10.1002/mrd.20762
McNeilly, A.S., Glasier, A., Jonassen, J., and Howie, P.W., Evidence for direct inhibition of ovarian function by prolactin, Reprod. Fert. Dev., 1982, vol. 65, no. 2, pp. 559–569. https://doi.org/10.1530/jrf.0.0650559
Khatib, H., Huang, W., and Wang, X., Single gene and gene interaction effects on fertilization and embryonic survival rates in cattle, Dairy Sci., 2009, vol. 92, no. 5, pp. 2238–2247. https://doi.org/10.3168/jds
Lonergan, P., Fair, T., Forde, N., and Rizos, D., Embryo development in dairy cattle, Theriogenology, 2016, vol. 86, no. 1, pp. 270–277. https://doi.org/10.1016/j.theriogenology.2016.04.040
Moore, S.G., Cummins, S.B., Mamo, S., Lonergan, P., Fair, T., and Butler, S.T., Genetic merit for fertility traits in Holstein cows: VI. Oocyte developmental competence and embryo development, J. Dairy Sci., 2019, vol. 102, no. 5, pp. 4651–4661.https://doi.org/10.3168/jds.2018-15813
Schlee, P., Graml, R., and Schallemberger, E., Growth hormone and insulin-like growth factor-I concentrations in bulls of various growth hormone genotypes, Theor. Appl. Genet., 1994, vol. 88, nos. 3–4, pp. 497–500. https://doi.org/10.1007/BF00223667
Mitra, A., Schelee, P., and Balakrishnan, C.R., Polymorphisms at growth-hormone and prolactin loci in Indian cattle and Buffalo, J. Anim. Breed. Genet., 1995, vol. 112, no. 1–6, pp. 71–74. https://doi.org/10.1111/j.1439-0388.1995.tb00543.x
Woollard, J., Schmitz, C.B., and Freeman, A.E., Rapid communication: HinfI polymorphism at the bovine Pit-1 locus, Anim. Sci., 1994, vol. 72, no. 12, p. 3267.
Kudinov, A., Juga, J., Mäntysaari, E.A., Stranden, I., Saksa, E.I., Smaragdov, M.G., and Uimari, P., Developing a genetic evaluation system for milk traits in Russian black and white dairy cattle, Agric. Food Sci., 2018, vol. 27, pp. 85–95.https://doi.org/10.23986/afsci.69772
MiX99 Development Team (2015). MiX99: A software package for solving large mixed model equations. Release VIII/2015. Natural Resources Institute Finland (Luke), Jokioinen, Finland. URL: http://www.luke.fi/mix99
RStudio Team. RStudio: Integrated Development for R. RStudio, Inc., Boston, MA. 2015. https://www. rstudio.com/. Accessed July 27, 2018.
Merkur’eva, E.K., Genetic Basics of Breeding in Cattle-Breeding, Moscow, 1977.
Letkevitch, L.L., Gandzha, A.I., Kostikova, I.V., and Rakovitch, E.D., Condition of oocyte–cumuli complexes of culled cows and their in vitro fertilization ability, Zootechn. Sci. Belarus, 2008, vol. 43, no. 1, pp. 81–87.
Xiang, R., MacLeod, I.M., Bolormaa, S., and Goddard, M.E., Genome-wide comparative analyses of correlated and uncorrelated phenotypes identify major pleiotropic variants in dairy cattle, Sci. Rep., 2017, vol. 7, no. 1, p. 9248. https://doi.org/10.1038/s41598-017-09788-9
Metin Kiyici, J., Arslan, K., Akyuz, B., Kaliber, M., Aksel, E.G., and Cinar, M.U., Relationships between polymorphisms of growth hormone, leptin and myogenic factor 5 genes with some milk yield traits in Holstein dairy cows, Int. J. Dairy Technol., 2018, vol. 8, pp. 1–7. https://doi.org/10.1111/1471-0307.12539
Pozovnikova, M.V., Serdjuk, G.N., Pogorelskiy, I.A., and Tulinova, O.V., Genetic structure of milk cows in relation to DNA-markers and influence of their genotypes on lactation performance, Dairy Beef Cattle Breed., 2016, no. 2, pp. 8–13.
Pozovnikova, M.V. and Serdjuk, G.N., The relationship of gene polymorphism of Pit-1 with the productive characteristics of holsteinized black-motley cattle, Anim. Genet. Breed., 2017, no. 4, pp. 37–41.
Balogh, O., Szepes, O., Kovacs, K., Kulcsar, M., Reiczigel, J., Alcazar, J.A., Keresztes, M., Febel, H., Bartyik, J., Fekete, S.G., Fesus, L., and Huszenicza, G., Interrelationships of growth hormone AluI polymorphism, insulin resistance, milk production and reproductive performance in Holstein–Friesian cows, Vet. Med., 2008, vol. 53, no. 11, pp. 604–616.
Baruselli, P.S., Vieira, L.M., SaFilho, M.F., Mingoti, R.D., Ferreira, R.M., Chiaratti, M.R., Oliveira, L.H., Sales, J.N., and Sartori, R., Associations of insulin resistance later in lactation on fertility of dairy cows, Theriogenology, 2016, vol. 86, pp. 263–269.https://doi.org/10.1016/j.theriogenology.2016.04.039
Rachkova, E.N., Associations of genes associated with dairy productivity’s and resistance to mastitis in cattle, Cand. Sci. (Biol.) Dissertation, Kazan, 2017.
Yasemin, Ö.N.E.R., Yilmaz, O., Hayrettin, O.K.U.T., Nezih, A.T.A., Yilmazbaş-Mecitoğlu, G., and Keskin A., Associations between GH, PRL, STAT5A, OPN, PIT-1, LEP and FGF2 polymorphisms and fertility in Holstein-Friesian heifers, Kafkas Universitesi Veteriner Fakultesi Dergisi, 2017, vol. 23, no. 4, pp. 527–534. https://doi.org/10.9775/kvfd.2016.17192
Grossi, D., Buzanskas, M.E., Grupioni, N.V., de Paz, C.C.P., de Almeida Regitano, L.C., de Alencar, M.M., and Munari, D.P., Effect of IGF1, GH, and PIT1 markers on the genetic parameters of growth and reproduction traits in Canchim cattle, Mol. Biol. Rep., 2015, vol. 42, no. 1, pp. 245–251. https://doi.org/10.1007/s11033-014-3767-4
Funding
The study was conducted in accordance with the topic of the Ministry of Education and Science of the Russian Federation, state registration number AAAA-A18-118021590138-1.
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
Conflict of interest. The authors declare that they have no conflict of interest.
Statement on the welfare of animals. All applicable international, national, and/or institutional principles of care and use of animals were followed.
Additional information
Translated by A. Lisenkova
About this article
Cite this article
Pozovnikova, M.V., Rotar, L.N., Kudinov, A.A. et al. The Linkage of Polymorphic Variants of Genes Gh, Prl, and Pit-1 and Milk Productivity of Cows with Morphology of Cumulus-Oocyte Complex Sampled Post Mortem. Cytol. Genet. 54, 212–219 (2020). https://doi.org/10.3103/S0095452720030111
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S0095452720030111