20.500.12556/DKUM-60079 Spremljanje kondicije krav molznic lisaste pasme med laktacijo Body condition monitoring of Simmental dairy cattle during lactation Namen diplomskega dela je spremljanje telesne kondicije krav molznic lisaste pasme in ugotoviti morebitne medsebojne povezave med proizvodnimi lastnostmi in telesno maso. V raziskavo, ki je trajala 6 mesecev, je bilo vključenih 31 molznic. Molznice se je enkrat mesečno tehtalo, ocenila se jim je telesna kondicija in spremljala količina in kakovost mleka. Ugotovili smo, da je ocena telesne kondicije bolj uporaben podatek kot podatek o telesni masi. Kondicija se najhitreje spreminja v prvih treh mesecih po porodu, saj takrat molznice izgubijo največ telesne mase, imajo pa v tem obdobju najvišjo povprečno dnevno mlečnost. Poleg spremljanja telesne kondicije je zelo pomembno tudi spremljanje vsebnosti maščob in beljakovin v mleku, saj nas lahko vsi ti podatki skupaj zgodaj opozorijo na morebitne presnovne motnje molznice. Manj produktivne molznice začno že v prvi polovici laktacije z nalaganjem telesnih maščob in imajo ob presušitvi previsoko oceno kondicije, kar vodi v presnovne težave v naslednji laktaciji. The purpose of the diploma paper is to monitor the body condition score of Simmental dairy cattle and find possible interactions between the production traits and body weight. The experiment, which included 31 dairy cows, lasted 6 months. The cows were weighted once per month, their body condition score and the quality and quantity of the milk was monitored. We established that the body condition score is a more useful data than the body weight information. The body condition changes most in the first three months of lactation. This is also the time when dairy cows loose most of their weight and have the highest average daily milk yield. Next to monitoring the body condition score, it is also very important to monitor the fat and protein content in the milk, since all this data together can warn us about possible metabolic issues of the cow. Less productive dairy cows start building up body fat already in the first half of lactation and have at dry-off a to high body condition score, which leads to metabolic issues at the next lactation. krave molznice telesna kondicija laktacija telesna masa dairy cow body condition score lactation body weight true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2016-06-08 09:22:04 2016-06-24 11:30:41 2022-06-22 03:05:54 2019-07-11 11:35:03 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:TFS4QUW8 UN_Lep_Danijel_2016.pdf UN_Lep_Danijel_2016.pdf 1 C3D4F6790A230EBE5CF5F7E9DA78048F c6118bb900f5dc8d2ad1d1c6bbb779d501b773cb8e7ef5acadac77b76efa8161 a7c68366-7c0c-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=93804 Fakulteta za kmetijstvo in biosistemske vede 0 0 0