Nutritional value of debranned wheat
Posted in: Prairie Swine Centre by admin on January 1, 2001 | No Comments
Description of the Pork Industry Interpretive Centre
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The pork industry interpretive centre and viewing gallery is a communications project initiated by the Centre to address a growing need to provide public access t pork production facilities. The industry interpretive Centre will provide factual information on all aspects of pork production; combined with the associated Viewing Gallery, the general public will be able to see the inner workings of a modern pork production facility and how livestock production works with other aspects of the rural economy.
CIBC Announces Contribution to Interpretive Centre
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Savaging of Piglets: A Puzzle of Maternal Behaviour
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Infanticide, a
Effects of nipple drinker height and flow rate on water wastage in grower and finisher pigs
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An experiment was conducted to study the effects of height and flow rate of nipple drinkers on water wastage in pigs. Results show water wastage in pigs. Results show water wastage can be reduced by up to 20% by adjusting nipple height. High flow rate resulted in higher water wastage.
http://prairieswine.com/rsc/pdf/1941.pdf
Determining the Threonine Requirements of the High-Producing Lactating Sow
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There are 2 steps in defining a feeding strategy. The first is to set reproductive targets including the amount of weight gain for sows during different parities and the number of piglets a sow should nurse during lactation. The second step is to set nutritional requirements to meet these specific targets. Models developed for sow nutrition requirements in gestation, attempt to partition nutrient requirements into three components: maintenance, growth of the conceptus and reproductive tissue. These models have led to the factorial approach to defining nutrient requirements in gestating sows.
PSC Elstow Feed Mill Opens
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Fibre and Enzymes
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Fibre content of cereal grains can be quite variable and are related to changes in digestible energy (DE) content. Because fibre content and DE are related, DE can be predicted using fibre analyses. Pigs, especially young pigs, have a limited capacity to digest fibre as they do not produce the proper enzymes. Therefore, pigs are entirely dependant on the large intestine for fibre digestion by intestinal bacteria. This process produces volatile fatty acids which are available for use as energy sources. This system is not nearly as efficient a use of energy compared to glucose absorption. Improvement of efficiency of overall energy utilization can be achieved through dietary enzyme supplementation. The supplemental enzymes are able to digest part of the fibre complex and may improve digestion of energy and amino acids for diets high in wheat or barley. A lack of response to these enzymes may be due to lower than average dietary fibre content. This study used two qualities of barely, low and high. Supplemental enzymes improved the low quality barley more than the high quality barley. However, the amount of energy digested by the small intestine was improved for both samples. It is essential that fibre analyses be apart of grain sample evaluation as the effect of enzyme supplementation depends on the sample. Overall, enzyme supplementation can be used to reduce the negative effects of fibre on nutrient digestibility.
Dietary particle size and nutrient supply affect nitrogen excretion
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Diets based on barley and peas ground to two particle sizes and with one of two diet formulations (either limiting in energy or amino acids) were fed to cannulated grower pigs. Energy digestibility was affected by particle size but not diet formulation. Total nitrogen excretion was affected by diet formulation, but not by particle size.
Digestibility of Energy and of High Oil Corn
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