In article there is a speech about carotene losses in hay at storage; the schedule of losses of this substance on months which will help to make a diet for any month of the winter and stall period is provided.
The reasons of loss of the content of carotene in hay
For normal development of animals such forages in which all are in the best way combined necessary for an organism of an animal food elements are necessary. Special attention it is necessary to give the organizations of winter feeding. It is necessary to mean that in storage of forages a significant amount of nutrients is lost.
In zimne – the stall period hay is one of the main sources of cellulose and carotene for cattle. The greatest complexity at preparation and storage of hay consists in safety of carotene – pro-vitamin A.
Quality of hay at its storage depends on many factors: humidity when laying on storage, technology of its preparation, the content of nutrients, density of laying, relative humidity of air. Besides, on the hay which is storing in ricks, an atmospheric precipitation, a sunlight, active aeration affect, especially at a strong wind. The main losses of carotene in hay occur in its storage.
Carotene losses in hay from the moment of its preparation till the end of the winter and stall period
The greatest speed of losses is caused by hay storage in ricks – as a result carotene quickly is oxidized. The big percent of losses in bean hay is connected with that in the course of its preparation many leaves and other gentle parts of plants are lost.
In a diet it is necessary to define the actual content of carotene taking into account its losses for every period of feeding of animals. For the purpose of diet enrichment by carotene it is necessary to use its such sources, as a grassy and coniferous flour, fodder carrots, and also preparations of "Trivit", "Tetravit", oil solution β-karotina, cod-liver oil, etc.
At impossibility to carry out frequent analyses for definition of the content of carotene it is offered to consider the schedule of losses of this substance on months which will help to make a diet for any month of the winter and stall period.
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