The substitution of grass silage by a straw and concentrate mixture for dairy cows

Roberts, David J.

doi:10.1016/0377-8401(88)90037-5

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…In Experiment 2, inclusion of mixtures containing MGBP in place of grass silage led to a higher total DM intake. Roberts (1988) reported a similar increase when a forage consisting of a straw mix and silage replaced silage in diets for dairy cows. In a partial storage feeding system, Aston et al (1987) fed a 1:1 mix of silage and brewers' grains and reported an increase of 2AE0 kg DM cow day )1 compared with cows fed silage overnight.…”

Section: Discussionmentioning

confidence: 79%

The value of malt distillers’ grains ensiled with molassed sugar beet pellets as a feed for dairy cows

McKendrick¹,

Roberts²,

Offer³

2003

Grass and Forage Science

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In one experiment twenty‐four Holstein Friesian cows, average 43 d post‐partum, were used in a changeover design experiment to evaluate the replacement of a cereal‐based concentrate supplement (C) by an ensiled mixture (MGBP) of malt distillers’ grains and molassed sugar beet pellets. The cows were offered grass silage ad libitum [dry matter (DM) content 170 g kg−1, crude protein (CP) concentration 160 g kg DM−1, metabolizable energy (ME) concentration 10·9 MJ kg DM−1] and either C or MGBP at one of three levels (3, 6, 9 kg DM d−1). The composition of C and MGBP were DM content: 853 and 296 g kg−1, CP concentration: 202 and 187 g kg DM−1, ME concentration: 12·6 and 10·8 MJ kg DM−1 respectively. The cows ate all the C supplement but the intakes of MGBP were 2·7, 4·9 and 6·4 kg DM d−1 for the 3, 6 and 9 kg DM d−1 levels of MGBP respectively. Total DM intakes (kg d−1) were 12·5, 15·6, 18·2 for treatments 3‐C, 6‐C and 9‐C and 13·1, 14·4 and 15·9 (s.e., 0·90) for treatments 3‐MGBP, 6‐MGBP and 9‐MGBP respectively. Milk yields (kg d−1) for treatments 3‐C, 6‐C and 9‐C were 19·9, 23·2 and 24·2, respectively, and for treatments 3‐MGBP, 6‐MGBP and 9‐MGBP were, 20·3, 21·3 and 23·0 respectively (s.e., 1·05). Milk fat contents (g kg−1) for treatments 3‐C, 6‐C and 9‐C were 42·8, 42·3, 43·5 respectively and for treatments 3‐MGBP, 6‐MGBP and 9‐MGBP were 39·5, 38·7 and 38·2 (s.e, 1·86), respectively, and milk protein contents (g kg−1) for treatments 3‐C, 6‐C and 9‐C were 30·5, 30·6, 31·8, respectively, and for 3‐MGBP, 6‐MGBP and 9‐MGBP were 30·0, 30·8 and 31·2 (s.e., 0·66) respectively. Milk yield and milk protein contents were significantly higher for the higher levels of supplementary feeding but there was no difference between the types of supplement. The milk fat contents were significantly lower on the MGBP than C supplements. In a second experiment fifteen Holstein Friesian cows, average 126 d post‐partum, were used in a changeover experiment to evaluate the replacement of all (treatment M) or half (treatment MS) of the grass silage (S) in their diet by a mixture of MGBP and straw. All cows received 5·1 kg DM d−1 of concentrate feed. Forage DM intakes were 8·3, 11·2 and 14·2 kg DM d−1 for the S, MS and M treatments respectively. Milk yields (kg d−1) for S, MS and M treatments were 17·0, 19·4 and 20·0 (s.e., 0·56) respectively. Corresponding contents of milk fat and protein (g kg−1) were 42·0, 41·4, 38·6 (s.e., 0·37) and 33·8, 34·1, 34·2 (s.e., 0·42). Ensiled mixtures of malt distillers’ grains and molassed sugar beet pellets can be used to replace some of the conventional concentrates or grass silage for dairy cows giving moderate yields without a loss of production.

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Section: Discussionmentioning

confidence: 79%

The value of malt distillers’ grains ensiled with molassed sugar beet pellets as a feed for dairy cows

McKendrick¹,

Roberts²,

Offer³

2003

Grass and Forage Science

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A comparison of buffer and partial storage feeding of a straw/concentrate mixture to grazing dairy cows

Roberts¹

1989

Grass and Forage Science

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experiment for cows offered the straw/concentrate mixture overnight. Over the whole experiment there were no differences in yield of milk solids. AbstractA straw/concentrate mixture was offered to setstocked dairy cows over a 24-week period. The cows were offered grazed herbage only (G), or grazed herbage with a straw/concentrate supplement offered either for 45 min after each milking (B), or overnight (P). The overnight treatment involved housing the cows between afternoon and morning milking. The straw/concentrate mixture contained 0-33 long barley straw, 0-28 barley, 0-12 soya bean meal, 0-25 molaferm and 0-02 minerals. During the first 8 weeks of the experiment an average of 2-25 kg of concentrate were fed, and from weeks 9-24, 2-0 kg of concentrate were fed.The feeding of the straw/concentrate mixture led to a decrease in estimated herbage dry matter (DM) intake, particularly for treatment P. Estimated total DM intakes were increased throughout the experiment by offering the straw/concentrate mixture. However, total metabolizable energy (ME) intakes were only increased in midand late season.Milk yield was higher in early season for treatment G; 28-1 kg d"' compared to 26 8 kg d*' and 25-5 kg d"' for treatments B and P respectively. In late season the cows in treatment G had lower milk yields; 13-3 kg d"' compared to 15-5 kg d-' and 16 8 kg d"' for treatments B and P respectively. Milk fat content was increased in early season in treatment P, and milk protein content tended to be reduced throughout the

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The substitution of grass silage by a straw and concentrate mixture for dairy cows

Cited by 2 publications

References 9 publications

The value of malt distillers’ grains ensiled with molassed sugar beet pellets as a feed for dairy cows

The value of malt distillers’ grains ensiled with molassed sugar beet pellets as a feed for dairy cows

A comparison of buffer and partial storage feeding of a straw/concentrate mixture to grazing dairy cows

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