Dependence of milk production of dairy sheep on climate conditions

Article Details: Received: 2020-10-14 | Accepted: 2020-11-27 Available online: 2021-01-31 https://doi.org/10.15414/afz.2021.24.mi-prap.85-88 The aim of the study was to determine influence selected climatic characteristics on milk production ewes during lactation. Data from sheep farm Liptovska Teplicka located in moderate climate zone (latitude 48°57'50.3N, longitude 20°04'31.0E) were analysed. In period 2017 2019, following traits: total morning (TMPM), evening (TMPE), morning+evening (TMPM+E) and average daily per ewe (ADMP) measured a basis. Traditional (Carpatian) system applied: pasture machine milked twice day. Climate monitored 10-minute intervals by standard weather station (supplier: firm PHYSICUS), near farm. air temperature - T (°C), relative humidity RH (%), wind speed (m.s -1 ) precipitation (mm)recorded between 5 a.m. 4 p.m. April September traits Temperature-humidity index (THI) calculated according National Research formula. year, month interaction year x also Covariance analysis Pearson correlation coefficients using statistical programme SASv9.2 (procedures GLM CORR) employed. month, respectively, found (P 40.0 THI <= 68.0). Preliminary results suggest that dairy may be significantly influenced zone. Keywords:  sheep, thermal stress, yield, temperate References Al Dawood, A. 2017. Towards heat stress management small ruminants – a review. Ann. Anim. Sci., 17(1), 59-88. DOI: 10.1515/aoas-2016-0068 Finocchiaro, R., Van Kaam, J.B.C.H.M., Portolano, B., Misztal, I. 2005. Effect Mediterranean sheep. J. Dairy Sci. , 88, 1855-1864. Gauly, M., Ammer, S. 2020. Review: Challenges for cow systems arising changes. Animal,. 14:S1, s196-s203. doi:10.1017/S1751731119003239 Bollwein, H., Breves, G., Brugemann, K., Danicke, S., Das, Demeler, J., Hansen, Isselstein, Konig, Loholter, Martinshon, Meyer, U., Potthoff, Sanker, C., Schroder, Wrange, N., Meibaum, von Samson-Himmelstjerna, Stinshof, Wrenzycki, 2013. Future consequences challenges change Central Europe Animal, 7, 843-859. doi:10.1017/S1751731112002352 Ramon, Diaz, Perez-Guzman, M.D., Carabano, M.J. 2016. exposure adverse conditions Manchega 99 5764-5779. http://dx.doi.org/10.3168/jds.2016-10909 Hamzaoui, Salama, A.A.K., Albanell, E., Such, X., Caja, G. Physiological responses lactational performances late-lactation goats under conditions. 96, 6355-6365 . http://dx.doi.org/ 10.3168/jds.2013-6665 Council (NRC). 1971. A guide envronmental research animals. Washington, DC: Academy Science. Sanches-Molano, Kapsona, V.V., Ilska, J.J., Desire, Conington, Mucha, Banos., 2019. Genetic novel phenotypes animal resilience variability. BMC Genetics., 20-84. https://doi.org/10.1186/s12863-019-0787-z Silanikove, N. Koluman (Darcan). 2015. Impact industry zones: predications overall negative impact positive role adaptation earth warming. Small Rumin Res ., 123, 27-34. http://dx.doi.org/10.1016/j.smallrumres.2014.11.005