Effects of initial consolidation on silage

Lancaster, Robert; McNaughton, Mary

doi:10.1080/00288233.1961.10431608

Cited by 13 publications

(2 citation statements)

References 4 publications

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“…Although sufficient air to allow the temperature to rise to 40° or so in the very early stages of ensiling could be advantageous in hastening cell breakdown, aeration is generally regarded as detrimental (6,7,8). Conditions calculated to bring about the depletion of oxygen in the silage as rapidly as possible favour an early and adequate fermentation and a well-preserved silage.…”

Section: Effect Of Temperature and Air Infiltrationmentioning

confidence: 99%

Plant Juices in Relation to Silage Fermentation

Greenhill¹

1964

Grass and Forage Science

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The release of the plant‐cell juices is a prerequisite for a lactic‐acid fermentation in silage. Investigations with plant material at different moisture contents have indicated that above about 2 g water per g dry matter sufficient juice is released from properly ensiled material to permit the onset of fermentation; below this moisture content lactic‐acid production is delayed, if not prevented. When material of suitable moisture content is ensiled at a temperature of 25°C, the onset of fermentation is somewhat slower than at 40°C. However, within these limits, the temperature is not critical, provided that the silage is completely sealed to exclude air. The infiltration of even small amounts of fresh air delays the release of the juices and, especially at the lower temperatures, often results in an undesirable fermentation. A number of miscellaneous treatments, designed to hasten the release of the juices, failed to show any advantages in small‐scale tests.

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Section: Effect Of Temperature and Air Infiltrationmentioning

confidence: 99%

Plant Juices in Relation to Silage Fermentation

Greenhill¹

1964

Grass and Forage Science

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“…1958), shears (McDonald et at. 1960), or a mincing machine (Lancaster & McNaughton 1961). The first two methods are slow, and the degree of comminution achieved is determined by the skill and patience of the operator.…”

Section: Introductionmentioning

confidence: 99%

Comparison of methods of preparing grass and silage samples for laboratory analysis

Lancaster¹,

Wilson²,

Jury³

et al. 1977

New Zealand Journal of Agricultural Research

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The effects on the estimated chemical composition of grass and silage of various methods of preparing samples for analysis were studied. The methods used for grass were: (1) oven drying and grinding, (2) freeze drying and grinding, (3) coring, (4) mincing, and (5) freezing and sawing; and for silages: (1) freezing and sawing, (2) mincing, (3) slicing with a bacon ,,~icer once or twice, and (4) chopping with a hand guillotine. Oven drying of grasses gave lowest values for dry matter (DM), soluble carbohydrate, and total N, but method of preparation had no effect on ash % or fibre %. DM and fibre contents of silages were highest in minced and frozen-sawn samples, but method of preparation had no significant effect on values for VFA, lactic acid, and ammonia.

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The influence of oxygen on ensilage. I. Laboratory studies

Ruxton

McDonald

1974

J Sci Food Agric

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Grass was ensiled in laboratory silos in three separate experiments. In the first two of them, different oxygen treatment levels were achieved by ensiling different weights of herbage in the fixed volume of the laboratory silo. In the third experiment, the quantity of grass ensiled was kept constant, the oxygen level being varied by evacuation and injection of gas.Fermentation changes were followed during the period of ensilage. In all cases, when compared with the controls, oxygen treatments resulted in silages of lower lactate content, higher acetate content, higher pH and volatile N values. Butyrate was present in appreciable amounts in the high oxygen treated silages in Experiments 1 and 3. It was concluded that oxygen trapped in unconsolidated herbage had an adverse effect on fermentation resulting from not only oxidation of sugar but also from a direct effect on the activities of the microflora.

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Effects of initial consolidation on silage

Cited by 13 publications

References 4 publications

Plant Juices in Relation to Silage Fermentation

Plant Juices in Relation to Silage Fermentation

Comparison of methods of preparing grass and silage samples for laboratory analysis

The influence of oxygen on ensilage. I. Laboratory studies

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