Vpliv mikroklime hleva na prirejo mleka in počutje krav molznic

Zore, Matija (avtor), Klopčič, Marija (mentor)

Na kmetijah, ki se ukvarjajo s tržno prirejo mleka, je zagotavljanje dobrega počutja in ustreznega zdravja krav molznic ključnega pomena za uspešno prirejo mleka. Zaradi velikih dnevnih nihanj temperature in vlage ter hitrih vremenskih sprememb, je živalim težko zagotoviti primerno mikroklimo v hlevu. Poleg vremenskih dejavnikov velik problem predstavljajo stari in prenatrpani hlevi za krave molznice. Zato so živali v takih pogojih še toliko bolj izpostavljene neugodni mikroklimi hleva in pojavnosti vročinskega stresa poleti, ki imajo za posledico manjšo mlečnost, slabšo vsebnost mleka, veliko slabšo koncepcijo ob osemenitvi, slabše počutje in zdravje živali. Vse to vodi v ekonomske izgube na kmetiji. V okviru mednarodnega projekta FreeWalk smo na kmetiji Zore v obdobju od leta 2018 do 2020, enkrat mesečno na 9 mestih v hlevu spremljali temperaturo zraka, relativno zračno vlago in hitrost pretoka zraka ter temperaturno vlažnostni indeks (THI). Poleg omenjenih meritev smo v hlevu z datalogerjem beležili temperaturo in vlago s polurnimi zamiki. S pomočjo rezultatov kontrole produktivnosti smo spremljali količino in vsebnosti v mleku v povezavi s parametri mikroklime hleva. Ugotovili smo, da se pri vrednosti THI nad 72, zmanjšajo predvsem vsebnosti maščob in beljakovin v mleku.

• Jezik: Slovenski jezik
• Ključne besede: govedo, krave molznice, prireja mleka, hlevi, mikro-klima, dobro počutje
• Vrsta gradiva: Diplomsko delo/naloga
• Organizacija: BF - Biotehniška fakulteta
• Leto izida: 2020
• PID: 20.500.12556/RUL-120646
• COBISS.SI-ID: 29876739
• Datum objave v RUL: 24.09.2020

ZORE, Matija, 2020, Vpliv mikroklime hleva na prirejo mleka in počutje krav molznic [na spletu]. Diplomsko delo. [Dostopano 21 april 2025]. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=120646

Sekundarni jezik

• Jezik: Angleški jezik
• Naslov: The impact of microclimate of the stables on the well-being and milk

Izvleček

On dairy farms, ensuring the well-being and proper health of dairy cows is crucial for successful milk production. Due to large daily fluctuations in temperature and humidity and rapid weather changes, it is difficult to provide animals with a suitable microclimate in the barn. In addition to weather factors, big problem for dairy cows are old and overcrowded stables. Therefore, animals in such conditions are even more exposed to the unfavourable microclimate of the barn and the occurrence of heat stress in summer, which results in lower milk yield, poorer milk content, much poorer conception at insemination, poorer animal welfare and health. All this leads to economic losses on the farm. As part of the international FreeWalk project, we monitored air temperature, relative humidity and air flow rate, and the temperature humidity index (THI) at 9 places in the barn of dairy cows at the farm Zore in the period from 2018 to 2020. In addition to the mentioned measurements, temperature and humidity were recorded in the barn with a data logger with half-hour intervals. Using the results of milk recording, we monitored the milk yield and milk content of dairy cows in relation to the microclimate parameters of the barn. We found that when the THI value is above 72, the fat and protein content in milk decreases.

• Ključne besede: cattle, dairy cows, milk production, barns, micro-climate, well-being