Nutritional Value of Field Peas – Range of Digestible Energy content in 11 field pea varieties
Posted in: Production by admin on January 1, 2003 | No Comments
Recent research results indicate that locally grown feed ingredients express a high variability in nutritional value for growing – finishing pigs. The highest and lowest DE value differed 20% within twenty samples of barley collected from Alberta, Saskatchewan and Manitoba. Field peas are becoming an increasingly important protein and energy source for growing – finishing pigs in Western Canada. The range in nutritional value of field peas has been poorly assessed. Therefore, the objective of the present study was to characterize the DE content in samples of 11 field pea varieties. The DE ranged from 3098 to 3739 kcal/ kg; thus, the difference in DE between the highest and lowest value was 20%. Despite being grown under similar conditions, energy value for sample differed greatly among samples and variation in DE was greater than expected. Because nutritionists try to formulate diets within an accuracy of 1.5%, the issue of ingredient variability requires further study.
The Impact of Nutrition on Reducing the Impact of the Swine Industry on the environment
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Careful nutrient management planning is needed with increased intensity of the pork industry and with increased public concerns regarding nutrient excretion or odour emissions. Over-supplementation of diets with nutrients to ensure maximum pig performance resulted in excessive amounts of nutrients excreted in faeces and urine (Bake and Zublena, 1985). Successful nutrient management is key for sustainable pork production. Two principal nutrients of concern are nitrogen and phosphorus. Nitropgen is concern because of its impact on the inside and outside of the barn environment. Swine production has been recognized as a major source of ammonia, which is a noxious gas for humans and animals and contributes to bad odour and acidification of the environment. The main component of ammonia emission originates drom urea in urine, Fecal nitrogen is less volaltile than urinary nitrogen, because fecal nitrogen is bound with other proteins or compounds. Phosphorus is excreted in urine and faeces, and could have a major impact on the environment and the economy if not managed properly (Cromwell et al. 1993; Liu et al. 1998, NRC. 1998)
Solid Manure Handling and Application Systems
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Annual Report
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CHARACTERISTICS OF PHOTOTROPHIC AND NON–PHOTOTROPHIC LAGOONS FOR SWINE MANURE
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Denitrification in Constructed Wetlands Used for Treatment of Swine Wastewater
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