20.500.12556/DKUM-71744 Vpliv sezone na sestavo mleka Influence of season on milk composition V okviru magistrskega dela smo vrednotili vpliv sezone glede na sestavo mleka z območij, ki jih analizira laboratorij za mleko na KGZS Zavodu Ptuj (Ptuj, Celje, Novo mesto). V raziskavo smo vključili analize, ki so bile opravljene v sklopu AT4-kontrole (kontrola prireje mleka) za obdobje desetih let (2004–2014). Obravnavali smo naslednje parametre: vsebnost maščob, beljakovin, laktoze, sečnine in število somatskih celic v mleku. Za analizo obravnavanih meritev smo uporabili opisno statistiko, linearno regresijo ter preverili korelacije med parametri. Vpliv sezone smo ugotavljali s stališča treh dejavnikov: prehranjevalnega režima (zimski, letni obrok), vpliva obdobja (pomlad, poletje, jesen, zima) in območja prireje. Rezultati so pokazali, da se posamezni parametri mleka spreminjajo glede na prehranjevalni režim, glede na letni čas in da med območji obstajajo razlike. Med obravnavanimi spremenljivkami se je na območju Novega Mesta pokazala pozitivna korelacija med maščobo in sečnino ter številom somatskih celic in leti v obravnavanem obdobju, medtem ko so bile na območju Celja in Ptuja izbrane spremenljivke monotono povezane. In the present work we evaluated the influence of the season on milk composition based on data obtained from The Ptuj Institute, which belongs to the laboratory network governed by The Slovenian Chamber of Agriculture and Forestry. Data were routinely collected within the AT4 control (milk production control) during a period of ten years (2004-2014) in the area of Ptuj, Celje and Novo Mesto. Data from milk analyses described by fat, protein, lactose, urea and somatic cell content were statistically evaluated. The influence on these parameters was analysed depending on the dietary regime (winter, summer feed), season (spring, summer, autumn, winter) and geographical regions. The results showed that milk parameters change according to the dietary regime as well as the season, and surprisingly, even between geographically close regions. A positive correlation between fat and urea content as well as the number of somatic cells over the years in the analysed period was determined in Novo Mesto, while these variables were monotonously correlated in Celje and Ptuj regions. mleko / maščobe / beljakovine / laktoza / sečnina/ somatske celice / analiza milk / fats / proteins / lactose / urea / somatic cells / analysis true true false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2018-08-29 07:16:36 2018-10-23 12:06:21 2022-08-01 21:23:36 2019-07-11 18:52:57 2018 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:EK9NX2JQ MAG_Stajner_Barbara_2018.pdf MAG_Stajner_Barbara_2018.pdf 1 73DB2BE0AA1B5CE153C14679333A3013 2841e32f0a8b56edc03493f4cc990becad850c171c8517685dadfccb4258ca4a 79e22e0c-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/4d99b1a0-2192-42be-8216-fd9d91cd8ba7 https://dk.um.si/Dokument.php?lang=slv&id=131079 Fakulteta za kmetijstvo in biosistemske vede 0 0 0