Acta Univ. Agric. Silvic. Mendelianae Brun. 2018, 66, 647-653

https://doi.org/10.11118/actaun201866030647
Published online 2018-06-28

Impact of Feeding of Legume‑Cereal mixture Silages on Dairy Cow Milk Thermostability and Quality

Oto Hanuš1, Irena Němečková1, Jan Pozdíšek2, Igor Huňády3, Marcela Klimešová1, Antonín Ponížil3, Ondřej Elich1, Petr Roubal1, Radoslava Jedelská1, Jaroslav Kopecký1

1Dairy Research Institute, Ltd., Ke Dvoru 12a, 160 00 Prague 6, Czech Republic
2AgriResearch Rapotín Ltd., Rapotín, Výzkumníků 267, 788 13 Vikýřovice, Czech Republic
3Agritec Plant Research Ltd., Zemědělská 16, 787 01 Šumperk, Czech Republic

Current changes in climate (increasing drought) and the rise in prices of protein concentrate feed are the reasons for the increasing interest in growing and production and increasing silages from legume‑cereal mixtures (LCM) in rations for dairy cows. Another reason is to improve the soil fertility using LCM in crops rotation. The impact of feeding of dairy cows (Czech Fleckvieh and Holstein, 50 herds) on milk quality was monitored (for 3 years) when modifying the roughage feeding rations by additions of LCM silages. Bulk milk samples were tested (n = 641 (15 herds) LCM as experiment and 2,428 (35) as control). LCM was higher in crude protein, lactose, solids non‑fat and total microorganisms (from P ≤ 0.05 to P ≤ 0.001). The lower was LCM in the milk freezing point and the urea content (P < 0.05 and P < 0.001). The fat content and the somatic cell count were insignificantly different (P > 0.05). There was a significant effect of LCM on milk thermostability (18.85 < 20.9 minutes, P < 0.05). The residues of inhibitory substances in milk were not recorded in the LCM group. The LCM application is a risk‑free way of replacement of roughage component part of dairy cow feeding rations with regard to raw milk quality.

Funding

This contribution was created with the support of the projects NAZV KUS QJ1510312 and MZE RO 1418.

References

24 live references