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Replacing grass silage with pea-barley intercrop silage in the feeding of the dairy cow

Pursiainen, Pirjo and Tuori, Mikko (2006) Replacing grass silage with pea-barley intercrop silage in the feeding of the dairy cow. Agricultural and Food Science, 15 (3), pp. 235-251.

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Summary

The effect of replacing wilted grass silage (GS) with pea-barley intercrop silage (PBS) on feed intake, diet digestibility and milk production was studied with 8 multiparous Ayrshire-cows in a replicated 4 × 4 Latin square experiment. Proportion of PBS was 0 (PBS0), 33 (PBS33), 67 (PBS67) or 100 (PBS100) % of silage dry matter (DM). The DM content was 559 and 255 g kg-1 for GS and PBS. Crude protein content was 131 and 170 g kg-1 DM, respectively. Pea-barley silage was more extensively fermented than GS with total fermentation acid content of 120 vs. 12 g kg-1 DM. Silage was fed for ad libitum intake and supplemented with on the average 13 kg concentrate per day. Silage DM intake was 9.2 (PBS0), 9.7 (PBS33), 9.0 (PBS67) and 7.1 (PBS100) kg per day (Pquadr. < 0.05). The energy corrected milk yield [30.3 (PBS0), 29.8 (PBS33), 30.3 (PBS67), 31.3 (PBS100) kg per day] was not significantly affected by the treatment. Milk protein concentration decreased linearly (P < 0.05) in response to feeding PBS. It is concluded that PBS can replace up to two thirds of wilted, moderate quality GS in the feeding of dairy cows because in this experiment pure pea-barley silage reduced silage intake.


EPrint Type:Journal paper
Keywords:peas, barley, intercrops, whole crop silage, legumes, silage, dairy cows, feeding
Subjects: Animal husbandry > Feeding and growth
Research affiliation: Finland > Univ. Helsinki
ISSN:1795-1895
Deposited By: Koistinen, Riitta
ID Code:16816
Deposited On:08 Mar 2010 12:08
Last Modified:12 Apr 2010 07:43
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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