Publication Date
1997
Description
The objective of this trial was to investigate the effects of two levels of concentrate (5 and 10 kg) supplying the same amount of protein on feed intake, milk production and rumen fermentation in cows given two different grass silages. The silages were ensiled either with a formic acid based additive (F) or with a mixture of acids and lignosulphonates (L). Fermentation quality and digestibility were better in F silage than in L silage. There were no significant differences between the silages in feed intake, milk yield and milk composition. Feeding F silage increased rumen ammonia concentration and molar proportion of butyrate as compared with L silage. The increase in concentrate level decreased silage intake but increased total intake, milk yield, yield of milk constituents, dry matter digestibility, concentration of VFA and molar proportion of butyrate in the rumen. No significant interactions were observed between the main effects.
Citation
Khalili, H; Huhtanen, P; Rinne, K; and Suvitie, M, "The Effects of Two Levels of Concentrates Supplying the Same Amount of Protein on Silage Intake and Milk Production in Cows Given Two Grass Silages" (2024). IGC Proceedings (1993-2023). 3.
https://uknowledge.uky.edu/igc/1997/session17/3
Included in
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The Effects of Two Levels of Concentrates Supplying the Same Amount of Protein on Silage Intake and Milk Production in Cows Given Two Grass Silages
The objective of this trial was to investigate the effects of two levels of concentrate (5 and 10 kg) supplying the same amount of protein on feed intake, milk production and rumen fermentation in cows given two different grass silages. The silages were ensiled either with a formic acid based additive (F) or with a mixture of acids and lignosulphonates (L). Fermentation quality and digestibility were better in F silage than in L silage. There were no significant differences between the silages in feed intake, milk yield and milk composition. Feeding F silage increased rumen ammonia concentration and molar proportion of butyrate as compared with L silage. The increase in concentrate level decreased silage intake but increased total intake, milk yield, yield of milk constituents, dry matter digestibility, concentration of VFA and molar proportion of butyrate in the rumen. No significant interactions were observed between the main effects.
