Abstract
Received: 2018-05-18 | Accepted: 2018-05-22 | Available online: 2018-11-26 https://doi.org/10.15414/afz.2018.21.04.166-168 The aim of study was to evaluate the impact of genetic and non-genetic factors on somatic cells count in Slovak Simmental dairy cows in period 2009 to 2013. We observed subsequent results in dairy cows of 55 822 Slovak Simmental cattle. Data were analysed using the SAS and linear model with fixed effects of herd, years and months controls, sire, breeding type. The results of somatic cells count during the years 2009 and 2013 were as follows: the highest number of samples was analysed during 2010 (n = 288 215), where the average count was 560.48*10 3 · ml -1 . The lowest average value of somatic cells count was of amount of 535.93*10 3 · ml -1 (n = 280 732) in 2009.The linear model represents coefficient determination R 2 = 0.038296 % (P<0.001) for SCC with all fixed effects. According to the analyses by the effects on SCC the highest effect was the effect of herd R 2 = 0.021625, then effect of sire R 2 = 0.015075. These effects were highly statistically significant (P<0.001). Correlation coefficients among milk in kg, fat, protein in % with somatic cells count were r = -0.12918, r = 0.04166 and r = 0.11423. These coefficients were highly statistically significant (P<0.001). Keywords: dairy cows, milk production, Slovak Simmental cattle, somatic cells count and coefficient of determination References Alhussien M.N., Dang A.K. (2018) Milk somatic cells, factors influencing their release, future prospects, and practical utility in dairy animals: An overview. Veterinary World, 11 (5), 562-577. DOI: https://dx.doi.org/10.14202/vetworld.2018.562-577 Boro, P., Naha, B., Prakash, Ch., Madkar, A., Kumar, N., Kumari, A., Prakash Channa, G. (2016) Genetic and non-genetic factors affecting milk composition in dairy cows. International Journal of Advanced Biological Research, 6 (2), 170-174. Ceron-Munoz, M., Tonhati, H., Duarte, J., Oliveira, J., Munoz-Berrocal, M., Jurado-Gamez, H. (2002) Factors affecting somatic cell counts and their relations with milk and milk constituent yield in buffaloes. Journal of dairy science, 85 (11), 2885-2889 https://www.journalofdairyscience.org/article/S0022-0302(02)74376-2/pdf de Freitas, J. A., da Silva, J., FroesGarcezNeto, A., Machado dos Santos, T. (2017) Somatic cell count and milk yield on physicochemical components of milk from free-stall housed cows. Semina: CienciasAgrarias, 38 (2). DOI: https://dx.doi.org/10.5433/1679-0359.2017v38n2p909 Jadhav, P.V., Tarate, S.B., Bhuvana, M., Das, D.N., Shome, B.R. (2016) Somatic cell count as a monitoring system for hygienic milk production in India: A review. Asian J. Dairy & Food Res., 35, 270-277. Japertienė, R., Anskienė, L., Japertas, S. (2016) Evaluation of the milk production and somatic cell count of Lithuanian purebred and crossbred dairy cows. VeterinarijairZootechnika, 73 (95) Supplement, 51-57. Jattawa, D., Koonawootrittriron, S., Elzo, M. A., Suwanasopee, T. (2012) Somatic cells count and its genetic association with milk yield in dairy cattle raised under Thai tropical environmental conditions. Asian-Australasian journal of animal sciences, 25 (9), 1216. DOI: https://dx.doi.org/10.5713/ajas.2012.12159 Oudah, E. Z. M. (2009) Non-genetic factors affecting somatic cell count, milk urea content, test-day milk yield and milk protein percent in dairy cattle of the Czech Republic using individual test-day records. Livestock Research for Rural Development, 21 . Rhone, J. A., Koonawootrittriron, S., Elzo M.A. (2008) Factorsaffecting milk yield, milk fat, bacterial score, and bulk tank somatic cell count of dairy farms in the central region of Thailand. In Tropical animal health and production, 40 (2), 147-153. Saravanan, R., Das, D. N., De, S., Panneerselvam, S. (2015) Effect of season and parity on somatic cell count across zebu and crossbred cattle population. Indian J. Anim. Res., 49, 383-387. DOI: https://dx.doi.org/10.5958/0976-0555.2015.00127.2 SAS User’s Guide 2002-2003. Version 9.3 (TS1M3). SAS Institute. Inc., Carry. NC. USA. Savic, N. R., Mikulec, D. P., Radovanovic, R. S. (2017) Somatic Cell Counts in Bulk Milk and their Importance for Milk Processing. In: IOP Conference Series: Earth and Environmental Science, 85, p012085. Sharif, A., Muhammad, G. (2008) Somatic cell count as an indicator of udder health status under Modern dairy production: a review. Pakistan Vet. J., 28 (4), 194-200. Souza, G. N., Brito, Jose R. F., Brito, Maria A. V. P., Moreira, Elvio C., da Silva, Marcos V. G. B.(2005) Factors affecting somatic cell counts (SCC) in Brazilian dairy cows. In: Animals and environment. Vol.1: Proceedings of the XII-th ISAH Congress on Animal Hygiene, Warsaw, Poland, 4-8 September 2005, BEL Studio sp. zoo., 237-240. Tancin, V., Miklas, S., Macuhova, L. (2018) Possible physiological and environmental factors affecting milk production and udder health of dairy cows: a review. Slovak J. Anim. Sci., 51 (1), 32–40. The Breeding Service of the Slovak Republic. S.E., (B.S. SR, S.E.) (2014) Results of dairy herd milk recording in Slovak Republic at control years 2009 to 2013.
Highlights
The somatic cells count (SCC) of milk is widely used to monitor udder health and the milk quality (Sharif, Muhammad, 2008; Jadhav et al, 2016).The composition of milk from dairy cows is of major interest to milk producers, processors and consumers because of its health related issues and market demand
Milk composition can be affected by a wide array of factors: breed, season, age, stage of lactation and diet of the animal (Savić et al, 2017; Tančin et al, 2018).Factors affecting on somatic cells count shows in publications others authors as Cerón-Muñoz et al, 2002; Souza et al, 2005; Rhone et al, 2008; Oudah, 2009; Saravanan et al, 2015 and Alhussien, Dang, 2018
We according to divided dairy cows a breedtype S0 – cows with genetic proportion of pure Slovak Simmental blood, S1 – cows with genetic proportion of pure Slovak Simmental blood, S2 – cows with genetic proportion of pure Slovak Simmental blood
Summary
The somatic cells count (SCC) of milk is widely used to monitor udder health and the milk quality (Sharif, Muhammad, 2008; Jadhav et al, 2016).The composition of milk from dairy cows is of major interest to milk producers, processors and consumers because of its health related issues and market demand. It directly affects the economy of milk production as well as economic condition of these dairy farmers (Boro et al, 2016). The aim of study was to evaluate the impact of genetics and non-genetics factors on somatic cells count in Slovak Simmental dairy cows
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
