| Registro completo |
| Provedor de dados: |
Sci. Agrar.Paran. / SAP
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| País: |
Brazil
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| Título: |
Implications of the use of glycerin on fed of finishing pigs: review
Implications of the use of glycerin on fed of finishing pigs: review
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| Autores: |
Corassa, Anderson
Leite, Rafaeli Gonçalves
Silva, Daniela Rocha da
Santos, Tatiane Izabel Silva dos
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| Data: |
2017-04-05
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| Ano: |
2017
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| Palavras-chave: |
Coproducts
Metabolism
Glycerol
Performance.
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| Resumo: |
Brazilian pig production has been highlighted worldwide, currently the country has occupied the fourth place both in production and export of pork. The the Brazilian governmen has required the addition of 7% biodiesel in fossil diesel, this requirement also increased the amount of glycerin which is a byproduct from production of biodiesel by transesterification. Glycerin has interesting nutritional characteristics for animal feed, and reduce the cost of diets to have energy value similar to corn. For each 90 m3 of biodiesel produced by transesterification of vegetable oils are generated 10 m3 of glycerin. Glycerol is a nutritional component of dietary fat (triglycerides) in the diet can be absorbed as monoglycerides constituent after a partial hydrolysis of triglycerides. In general metabolism, glycerol plays a vital role, with important structural component of triglycerides and phospholipids. The variability of the components of glycerin as glycerol and sodium content are parameters that are not considered may limit its use in animal feed. Studies of the use of glycerin in feeding finishing pigs indicate that the ingredient does not compromise the performance of animals nor carcass characteristics and meat quality, some studies showed improvement in meat water retention capacity. qualidade de carne, alguns estudos apresentou melhoria na capacidade de retenção de água da carne.
The objective was to review the production process, characterization, nutritional value, metabolism, limitations of glycerin use and its effects on performance and carcass and meat characteristics of pigs. The glycerol molecule appears as a viscous, colorless, odorless and hygroscopic liquid, with a sweet taste, soluble in water and alcohol. The chemical composition and glycerol content of glycerin depend on the type of raw material used and the efficiency of the biodiesel production process. Glycerol as a nutritional component of dietary fat is absorbed as a constituent of monoglycerides after partial hydrolysis of triglycerides; undergoes action of the enzyme glycerol kinase, converted to glycerol 3-phosphate that may follow the route of glycolysis when the animal is in energy deficit; or be destined to the deposition or excretion of fat when it is with excess of energy. Glycerin may exhibit high metabolizable energy content, being able to be a substitute of corn in pig diets. The effect of glycerin on the performance and characteristics of pig carcass and meat depends on the type, inclusion level and weight range of the animals, but in general their use in the diets does not reflect to the detriment. Concern about the use of glycerin in animal feed is related to the residual levels of biodiesel production affecting the composition of glycerin in sodium, potassium and methanol, as well as its cost in relation to corn. The use of glycerin in finishing pig feed is a viable alternative since its characteristics are respected.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Português
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| Identificador: |
http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14372
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| Editor: |
Scientia Agraria Paranaensis
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| Relação: |
http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14372/11219
http://e-revista.unioeste.br/index.php/scientiaagraria/article/downloadSuppFile/14372/2212
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| Formato: |
application/pdf
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| Fonte: |
Scientia Agraria Paranaensis; Vol. 16, No 1 (2017); 13-20
1983-1471
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