Losses in the Nutritive Value of Heavily‐wilted Herbage Ensiled in Evacuated and Non‐evacuated Polythene Containers

Jackson, N.

doi:10.1111/j.1365-2494.1969.tb01038.x

Cited by 7 publications

(1 citation statement)

References 11 publications

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“…Larabee and Sprague (13) and Jackson (11) also reported losses in the region of 5 to 10% for herbage enclosed in polythene. The larger loss in Experiment 2 described in this paper was probably due to the smaller amount of material ensiled compared to the large-scale experiments carried out by Brown and Kerr (7) and Jackson (11). The amount of surface wastage in Experiment 2 was thus a large proportion of the total weight of silage removed.…”

Section: The Conservation Of Grass In Sealed Meral and Plastic Contaimentioning

confidence: 65%

The Conservation of Grass in Sealed Metal and Plastic Containers, With and Without Ground Barley Meal

Anderson

Jackson

1970

Grass and Forage Science

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Two experiments are described in which ground harley meal was added to freshly-cut grass hefore ensiling it in small air-tight metal containers and polythene containers. The mean DM loss from the air-tight metal containers was 1 % and from the polythene containers 18-8%. The silages were all of satisfactory fermentation quality, as assessed hy pH, voladle acids, lactic-acid and Tolatile-hase content. The addition of the harley meal significantly improved the nutritive content of the ensiled material, and the resulting silage in the air-tight metal containers. Sheep were used to measure the voluntary intakes of the silages conserved in the polythene containers.

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Section: The Conservation Of Grass In Sealed Meral and Plastic Contaimentioning

confidence: 65%

The Conservation of Grass in Sealed Metal and Plastic Containers, With and Without Ground Barley Meal

Anderson

Jackson

1970

Grass and Forage Science

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Conservation of herbage of varying dry matter content in air‐tight metal containers with reference to the carbohydrate fraction

Anderson¹,

Jackson²

1970

J Sci Food Agric

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Herbage at four different dry matter levels, 19.8, 28.0, 37.5 and 45-0%, was ensiled in air-tight metal containers. There was no loss as inedible waste and this together with the low losses of constituents demonstrated the efficiency of this system of conservation. The mean dry matter loss from the silos was 6%. There was no discernible trend in the dry matter losses with increasing dryness of the ensiled material.The presence of butyric acid and the low levels of volatile nitrogen indicated a saccharolytic type of clostridial activity.Arabinose, galactose and xylose arising from the breakdown of hemicellulose were detected in the silages but the loss of the hemicellulose fraction was low.The presence of mannitol, which was most prevalent in the wilted-grass silages, indicated a substantial degree of a heterolacticfermentation of fructose. In the material of low dry matter concentration a homolactic fermentation was predominant.

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Conservation of wilted herbage ensiled in sealed plastic containers, with and without the addition of urea, and its intake by sheep

Jackson¹,

Anderson²

1970

J Sci Food Agric

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Timothy-meadow fescue grass was wilted to 27.7-33.9% dry matter content and two silos were filled with the wilted material alone and two with the wilted herbage to which urea, at a level of 1.38% of the dry matter ensiled, was added. The mean dry matter loss from the control silages was 16.7% and from the urea-treated silages 11.4%. No urea could be detected in the silage made from the urea-treated herbage. There was no evidence for any major differences in the fermentation pathways between the control and urea-treated silage. Voluntary intake of control and urea-treated silage by sheep was similar (1.7 times the maintenance metabolisable energy requirement) so that nitrogen intake was higher when the urea-silage was fed. No toxic effects of the treated silage were observed when assessed by blood urea and ammonia levels.

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Losses in the Nutritive Value of Heavily‐wilted Herbage Ensiled in Evacuated and Non‐evacuated Polythene Containers

Cited by 7 publications

References 11 publications

The Conservation of Grass in Sealed Metal and Plastic Containers, With and Without Ground Barley Meal

The Conservation of Grass in Sealed Metal and Plastic Containers, With and Without Ground Barley Meal

Conservation of herbage of varying dry matter content in air‐tight metal containers with reference to the carbohydrate fraction

Conservation of wilted herbage ensiled in sealed plastic containers, with and without the addition of urea, and its intake by sheep

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