20.500.12556/DKUM-66827 Techniques of measuring heart rate in cattle Tehnike mjerenja brzine otkucaja srca kod goveda The intensive animal breeding systems can cause severe environment degradation. However, the highly productive animals are extremely sensitive to the environmental changes. The animal welfare can be in direct contradiction with the need for highly intensive and economically successful milk production. The research is aimed at complementing the method of establishing the stress in calves, race heifers, fattened cattle and milk-cows with different body masses. Measuring of heart rate is one of painless measurements of physiological parameters of stress and, from the point of view of animals it has many advantages over the measurements including taking of blood samples. For measuring the heart rate of different categories of cattle without interference into their body we have tested the usefulness of special apparatuses used worldwide by top sportsmen during training for following up, measuring and monitoring the heart rate. These are Polar monitors of the heart rate, made by Finnish company Polar Electro Oy and working wirelessly with ECG precision. The receiver counts the heart rate on the basis of pulse-to-pulse time average algorithms in 5, 15 or 60-second intervals. The computer interface ensures magnetic transfer of measured and saved data on animals into a PC where the analysis of each collected data file follows. The used type of transmitter "Polar sport tester profi" having two electrodes in an air-tight sealed frame has enabled us to obtain a good signal on calves of up to 180 kg body mass. Periodic response in case of young cattle of up to 280 kg body mass has been registered only if electrolyte was added between the animal skin and the feeler. By further modifications and tests of the mentioned apparatuses the expected response has been reached also on adult animals. We found that use of these apparatuses on animals did not have any influence on special animal acting behaviour. The production of milk and meat in herds did not change during the test. Intenzivni životinjski rasplodni sustavi mogu prouzročiti žestoku degradaciju okoliša. Međutim, visoko produktivne životinje su ekstremno osjetljive na ekološke promjene. Životinjsko blagostanje može biti u direktnom proturječju s potrebom za visoko intenzivnom i ekonomski uspješnom proizvodnjom mlijeka. Istraživanje je usmjereno na kompletiranje metode utvrđivanja stresa kod teladi, sortnih junica, goveda za tov i mliječnih krava s drugačijim tjelesnim masama. Mjerenje brzine otkucaja srca je jedno od bezbolnih mjerenja fizioloških parametara stresa, i sa stajališta životinja ono ima mnoge prednosti u odnosu na mjerenja koja uključuju uzimanje krvnih uzoraka. Za mjerenje brzine otkucaja srca različitih kategorija goveda bez smetnji za njihovo tijelo testirana je korisnost posebnih uređaja koji se rabe u cijelom svijetu kod vrhunskih sportaša tijekom obuke zbog praćenja, mjerenja i nadgledanje brzine otkucaja srca. To su Polar monitori brzine otkucaja srca, koje je izradilo finsko poduzeće Polar Electro Oy i rade bežično s ECG točnosti. Prijemnik broji otkucaje srca na bazi prosječnog vremena bilo-prema-bilu u 5, 15 ili 60-sekundnim intervalima. Računalno sučelje osigurava magnetski prijenos izmjerenih i pohranjenih podataka na životinjama u PC gdje slijedi analiza svakog prikupljenog podatka. Korišteni tip odašiljača "Polar sport tester profi" s dvije elektrode u hermetički zapečaćenom okviru omogućio je dobivanje dobrog signala na teladima do 180 kg tjelesne mase. Periodičan odziv u slučaju mladih goveda do 280 kg tjelesne mase bio je bilježen samo ako je elektrolit bio dodan između životinjske kože i ticala. Kod daljnjih izmjena i testova spomenutog uređaja očekivani odziv je bio također dosegnut na odraslim životinjama. Otkriveno je da uporaba ovih uređaja na životinjama nije utjecala na posebno ponašanje životinja. Proizvodnja mlijeka i mesa u stadima se nije promijenila tijekom ispitivanja. Polar monitors modified apparatus heart rate cattle measuring monitorji Polar modificirani aparati srčni utrip govedo merjenje true false true Angleški jezik Hrvaški jezik Znanstveno delo 2017-07-12 09:44:09 2017-07-12 09:45:11 2022-08-01 13:13:04 2019-07-11 16:00:13 2006 0 0 str. 31-37 št. 1,2 Letn. 13 2006 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1330-3651 636.2:621.3.08:615.47:612.17 15346181 2421804 1330-3651 URN:SI:UM:DK:QPXYAV9H Tehnicki_vjesnik_2006_Janzekovic,_Mursec,_Janzekovic_Techniques_of_measuring_heart_rate_in_cattle.pdf Tehnicki_vjesnik_2006_Janzekovic,_Mursec,_Janzekovic_Techniques_of_measuring_heart_rate_in_cattle.pdf 1 93F1BF2894EA55142CC4B4C5D8DB1DDF de219209de69b31138b318d3d21b00d6218703fdb96a3fd4ae3d223bcb243cc5 66fa218e-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/60c3e5ce-1629-4518-ac3f-27e4f27ed15d https://dk.um.si/Dokument.php?lang=slv&id=114067 http://hrcak.srce.hr/8844 1 https://dk.um.si/Dokument.php?lang=slv&id=114066 Fakulteta za kmetijstvo in biosistemske vede 0 0 0