Naslov
How much methane does a cow actually produce?

Autori
Gantner, Vesna ; Kučević, Denis ; Gregić, Maja ; Brka, Muhamed

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
Agriculture in Nature and Environment Protection / - , 2018, 21-28

Skup
11. međunarodni znanstveno-stručni skup "Poljoprivreda u zaštiti prirode i okoliša"

Mjesto i datum
Vukovar, Hrvatska, 28.05.2018. - 30.05.2018

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
dairy cattle ; methane emission ; prediction methods

Sažetak
Climate change is indisputable. Furthermore, lt is a global issue and animal production supply chains are increasingly internatíonally connected. There is a common opinion that the global animal production sector, particularly cattle production systems, significantly contribute to an anthropogenic GHG emissions. But the question is How much methane does a cow actually produce? There are many methods for prediction of methane emissions that could be characterised as direct and indirect measures. The gold standard to measure CH4 and GHG emissions is the respiratory chamber. Since this technique is not easily applicable, because it is time consuming and costly, it cannot be the method of choice when a large number of measurements are needed (in the case of genetic evaluation). Short-term methods imply increase of production per animal and feeding optimization, while long-term methods imply genetic evaluation and selection based on methane emission Variation. Precondition for genetic evaluation for methane emission is selection of optimal indicators and models that are highly accurate and easy applicable in routine animal recording. Our current research indicates that methane emission varies significantly in accordance to used prediction equations. If we want the answer: "How much methane does a cow actually produce?”, it is necessary to define prediction models for body weight (BW), dry matter intake (DMI) and methane emission (CH4) based on parameters of dairy cattle population in Croatia. The stated will enable genetic evaluation of dairy cattle for methane emission as well as selection of cows with lower methane emission intensity. Finally, this will lead to environmentally sustainable milk production.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

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