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Articles - Nutrition

Multiple distal rib fractures with callus formation (arrows).

Vitamin D deficiency syndromes in swine (I)

Vitamin D is normally produced following skin exposure to ultraviolet-B. Since most piglets (and humans too!) are raised in climate controlled housing and born year-round, direct access to sunshine is often limited, even in the summer. Fortunately, vitamin D can be added to diets to meet the animals' need for vitamin D.

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Overview of the simulation program linking a linear program for least-cost diet  formulation, a stochastic pig growth model and a genetic algorithm (GA) to findthe best feeding strategy (F) for a given objective function in a specific market situation

Computer simulation to find the best feeding strategy

Production of pig meat worldwide exceeds that of any other meat. Traditionally, linear programming is used to generate minimum cost diets that to meet the pig nutrient requirements. Of greater importance to the pig producer than least cost diets is the maximisation of gross margin (per pig place or per pig place per year).

Data sheets: raw materials and additives

Technical sheets of the main raw materials and additives used in swine feed. They include a comparison of nutritional values ​​from various sources, product

access

Ketosis syndrome in sows

It’s true that we have rarely considered the sow as a dairy animal. A sow can produce up to 10 liters of milk at its production peak. If we consider that the effort the sow makes per hour in order to produce milk is almost equal to that of a cow, why do we continue to apply a collective treatment when it comes to feeding the sow?

Glycerol and swine feeding

Glycerol is a byproduct of the industry of bio-diesel fuels, representing roughly 10% of the crude oil used for that purpose. Therefore, large quantities are expected to be available in the near future for the different markets that can have a potential interest for it.

Crude protein in piglet diets

To maximize piglet growth, it is recommended that levels of crude protein be at 20-23% in pre-starters and 18-20% in starters. However, part of that crude protein will not be digested at the end of the ileum, and it will enter the large intestine together with the endogenous waste.

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