Minimum Distance Separation I (MDS I)

Posted in: Environment by admin on January 1, 1995 | No Comments

Implementation guidelines are presented for the determination of minimum distance separation between livestock production units or farms and other rural land use. The document is to be used when planning and development applications are realized or reviewed. The required separation distances between existing farm and new non-farm uses are provided considering the animal species, and the livestock units or potential livestock units. A data sheet can be directly uses to present the information regarding a farm and neighbouring land uses.

Wheat Phosphorus Availability : 2-In Vivo Study in Broilers and Pigs; Relationship with Endogenous Phytasic Activity and Phytic Phosphorus Content in Wheat

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In order to reduce the P concentration in manure, P availability in different plant feedstuffs should be determined. Wheat P availability has been studied by the digestive balance technique on broilers and pigs. Nineteen wheat samples were tested on broilers, giving a mean P retention of 57% (45-7070). P retention was observed to be linearly associated with the endogenous phytasic activity in wheats (r = 0-58; P < 0-05). This variability in P retention cannot be satisfactorily explained by the phytic P content of wheat. Four wheat samples were tested on pigs, giving a mean apparent P digestibility of 40%.

Treatment of Swine Wastes by High-Rate-Modified-Anaerobic-Proces (HRAMP).

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The technology discussed here is efficient for operating temperature of 25 to 30 C so it is more efficient in warm climates where the outside temperature stays always high.

Options for Managing Odor.

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In 1993 after the North Carolina General Assembly and the North Carolina State University recognized that swine odor problems had to be address in a specific way, the Swine Odor Task Force was formed. Two broad questions were to be answered and they are: “What are the primary sources and causes of odors from swine operations? and How can those odors be reduced or make less offensive?”. The swine production has doubled in North Carolina in the last four years with no real adjustment to environmental considerations and manure management and also increasing contacts between non-farming rural residents and farms. In many communities, odor complaints started making the news. The answer on the questions are presented in this report and information about the industry growth, public conflicts, odors, waste management, water quality are presented. Options for odor reduction are also presented for now and for the future. The main avenues toward odor reduction are related to overall better management thorough out the production.

This document covers well the situation of odour and the information is presented in order to be understood by a broad group of reader. However it is not possible to refer to the information sources used in order to write this report as the references are not given.

Cross Seasonal Studies of Airborne Microbial Populations and Environment in Swine Buildings: Implications for Worker and Animal Health

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Insulin growth factor 1 in weanling-growing pigs

Posted in: Prairie Swine Centre by admin on | No Comments

Insulin-like growth factor-1 (IGF-1) is a 70 amino acid, single chain polypeptide hormone and an important regulator of cell growth and differentiation. Most fetal and adult tissues synthesize IGF-1 although the liver is the major source of IGF-1 found in the circulation. During fetal like circulating IGF-1 levels are low, however, after birth, concentrations gradually increase. Considerable evidence supports a primary role for IGF-1 in regulation of postnatal growth.
Most IGF-1 occurring in plasma and other body fluids is bound to one of 6 identified IGF binding proteins (IGFBP). These binding proteins prolong the half-life of IGF-1 in plasma and may either potentate or inhibit IGF-1 effects on body tissues. The concentration of individual IGFBPs in body fluids therefore has a significant impact on the biological activity of circulating IGF-1.
Plasma concentration of IGF-1 is mediated by a complex interaction among nutrient quantity and quality as well as other factors such as stress and disease. These factors are also likely to influence the circulating concentration of IGFBP. Knowledge of the changes in blood levels of IGF-1 and IGFBP under current swine management conditions may provide a basis to determine the impact of various management practices on piglet growth and welfare.

A comparison of productivity and welfare of growing pigs in four intensive systems.

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Welfare of animals at slaughter – research and development. Part II.

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Effect of litter oiling and ventilation rate on air quality, health, and performance of turkeys.

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An experiment was conducted to study the effects of the application of rapeseed oil to litter, and ventilation rate, on the health status and growth performance of male heavy turkeys at 16 weeks of age. Litter oiling and increased ventilation rate significantly reduced the concentration of aerosol dust particles and the incidence of lung lesions.

Minimum Distance Separation II (MDS II)

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Implementation guidelines are presented for the determination of minimum distance separation between livestock production units or farms within rural areas. The document is to be used when planning and development applications are realized or reviewed. A data sheet can be directly uses to present the information regarding a farm about the farm and a calculation help determine the distances for the location of the building considering the barn odour potential for given animal species.