A note on supplements for dairy cows offered silage of high digestibility

Castle, M. E.; Retter, W. C.; Metcalfe, J. D.

doi:10.1017/s0003356100016810

Cited by 4 publications

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References 4 publications

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“…Silage intake was calculated from the density ofthe silage, 195 kg DM per m^ and the length of the silage in the clamp eaten each month, and was estimated to be 8-3 kg DM per cow per day. This value was identical to that found in another experiment with self-feed silage of high D-value (Castle et al, 1977), and suggests a silage of high intake characteristics. The effect of the concentrate treatments on the intake of silage is not known, but other evidence would suggest a higher intake on the barley-groundnut treatment than on barley alone (Castle and Watson, 1969;Laird et al, 1979).…”

Section: Resultssupporting

confidence: 87%

A comparison between supplements to silage of high digestibility offered to dairy cows

Adamson

Newell

Castle

1979

Grass and Forage Science

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Section: Resultssupporting

confidence: 87%

A comparison between supplements to silage of high digestibility offered to dairy cows

Adamson

Newell

Castle

1979

Grass and Forage Science

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The effects of concentrate supplements on the performance of dairy cows offered grass silage ad libitum

Laird¹,

Leaver²,

Moisey³

et al. 1981

Anim. Sci.

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Ninety-six lactating British Friesian cows were offered ad libitum two grass silages having the following analyses: 181 and 241 g dry matter per kg fresh weight, 108 and 96g digestible crude protein per kg dry matter and 617 and 619 g digestible organic matter per kg dry matter. In addition, four concentrate supplements were offered, containing either 360 g crude protein per kg on an air-dry basis and given at the rate of 015 kg/kg milk or 180 g crude protein per kg given at the rate of 030, 0375 and 0·45 kg/kg milk. Large and highly significant differences were recorded in silage intake, mil yield, milk composition, live weight and condition score during the winter feeding period. These differences in performance were associated more with differences in energy than in protein intake. During the post-experimental grazing period no significant differences between treatments were recorded in milk yield and composition, with the exception of fat concentration, and by midsummer no significant differences were apparent in live weight. The results of the experiment were appraised in economic terms and implications for commercial practice discussed.

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Silage and milk production: a comparison between soya, groundnut and single‐cell protein as silage supplements

Castle

Watson

1979

Grass and Forage Science

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Grass silage made in May from S24 perennial ryegrass was offered ad libitum to twelve Ayrshire cows in a 12-week feeding experiment. The silage had a DM concentration of 217 g kg ~', contained 147 g crude protein per kg DM and had a D-value of 64-6. In addition each cow consumed 1 kg hay per d plus concentrate supplements of dried sugar-beet pulp with (A) soya bean meal, (B) 'Pruteen', a single-cell protein (C) groundnut cake. The three concentrate supplements each contained 250 g crude protein per kg DM and were offered at the rate of 2-9 kg per 10 kg milk. The daily intakes of silage DM were 8-38, 7 94 and 7 49 kg on treatments A, B and C, respectively, with the extreme values being significantly different. The mean daily yields of milk on treatments A and B were both 16 2 kg per cow, and were significantly higher than the yield of 15 2 kg per cow on treatment C. The fat and lactose contents of the milk on the three treatments were not significantly different, but the CP content on treatment C was significantly lower than that on the other treatments. It is concluded that soya bean meal and 'Pruteen' were superior to groundnut cake as a protein supplement in a silage-based ration.

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A note on supplements for dairy cows offered silage of high digestibility

Abstract: 1977). A note on supplements for dairy cows offered silage of high digestibility.

Cited by 4 publications

References 4 publications

A comparison between supplements to silage of high digestibility offered to dairy cows

A comparison between supplements to silage of high digestibility offered to dairy cows

The effects of concentrate supplements on the performance of dairy cows offered grass silage ad libitum

Silage and milk production: a comparison between soya, groundnut and single‐cell protein as silage supplements

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