Food under film (1977)

Panorama of forests and meadows of central Russia.

Field of sown grass.

Clover.

Article in the newspaper "PRAVDA".

Harvesting grass and making haylage.

Alternating shots with different types of forage grass.

Crops that can be put into silage.

Silage is preserved by fermentation, haylage is preserved by dryness.

As a result, 1 kg of haylage contains 500 g of dry matter.

Silage contains half of this amount.

Haylage is fed to cows.

In other respects, haylage wins over silage and hay.

Due to juice leakage in silage, 15% of the dry matter of the feed is lost, and another 15% is wasted.

As a result of fermentation, silage loses another 30% of the dry matter.

Haymaking.

At the time of haymaking, 1 kg of hay contained up to 35 milligrams of carotene, 5 grams of calcium, 2 grams of phosphorus, and 70 grams of digestible protein.

Five months later, feed was taken from the stacks for analysis again.

There were 8 milligrams of carotene left in a kilogram of hay, calcium and phosphorus had completely disappeared, and no more than 35 grams of digestible protein remained.

The laboratory analyzes the haylage after 5 months.

Carotene was completely preserved.

Calcium and phosphorus were not lost, and protein was completely preserved.

A field with cereal grasses.

Legumes.

Harvesting these grasses.

One of the most important elements of the haylage laying technology is maintaining the optimal wilting regime.

It is necessary to ensure that there are no more than 5 kg of freshly mown grass on each meter of the swath, otherwise the swaths are not blown through, and the mass wilts poorly.

A field with mown swaths.

For quick wilting, the windrows should be turned every 2-4 hours.

The moisture content of the green mass is determined in the express laboratory of the state farm.

The wilted mass is picked up, crushed and loaded onto transport using pick-up crushers.

Harvesting and transport complex.

The most common method of storing towers and trenches.

The volume of the trench is calculated so that loading the trench lasts no more than 4 days.

The walls of the trench are lined with reinforced concrete slabs.

The joints between the slabs are hermetically sealed.

The haylage is transported to the trench.

Accounting for haylage.

Unloading.

The mass is carefully compacted in order to reduce air access to the preserved feed.

The laying of the wilted mass into the trench is completed when, after compaction, the haylage rises one meter above the upper edge of the trench.

When covering the feed with film, it is necessary to carefully ensure that the entire laid mass is tightly closed to prevent air access.

Then the trench is covered with a layer of earth.

Table with bookmark parameters.

Silage towers.

To preserve the nutritional properties of the feed, the tower must be loaded within 4-5 days.

Such periods can only be ensured by using modern technology.

A cartoon explaining the loading of a tower with a conveyor.

When the tower is filled, the mass is covered with polyethylene film.

After loading, the mass settles in the tower and, therefore, after 15-20 days, the film is removed and additional loading is carried out.

A cartoon telling about the final additional loading and conservation of silage in the tower.

A cartoon showing the unloading of silage.

Narrated by N. F. Lyskin, director of the Vorsino state farm.

Cows eat silage.

Panorama of the farm's barnyard.

Narrated by V. A. Chumakov, candidate of agricultural sciences.

Milking cows on the farm.

Milk after milking is taken to the plant.