Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"pig production"”.
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Welfare issues in Italian heavy pig production
… and focuses on welfare issues in Italian pig production. This sector is characterized by animals (heavy pigs) slaughtered for dry-cured products at a minimum of nine months and 160 kg (compared to 110-115 kg of other EU systems). The first set of studies investigated the feasibility of …
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Improving worker safety and pig welfare in commercial pig production
DSpace SAF Submission Ingestion Package generated from Vireo submission #19360 on 2023-12-04 at 17:17:45
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The direct injection of CRISPR/Cas9 system into porcine zygotes for genetically modified pig production
The pig has similar features to the human in aspects such as physiology, immunology, and organ size. Because of these similarities, genetically modified pigs have been generated for xenotransplantation. Also, when using the pig as a model for human diseases (e.g. cystic fibrosis transmembrane …
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Evaluation of the impact of reproductive technologies on the genetic improvement and profit of pig production systems
… the productivity and profitability of the U.S. pig industry. The impact of artificial insemination technique, semen preparation, and selection for semen traits on profitability and complementary financial indicators was evaluated under a comprehensive range of productive and reproductive …
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Characteristics of pigs under communal production systems in resource-poor farming areas of Vhembe District in Limpopo Province
Although pig production systems have been characterized, there is inadequate information on the production status of indigenous pigs in the smallholder sector 'especially in South Africa. This study sought to address this problem through characterizing smallholder pig production systems in Limpopo …
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Corn responses to high levels of copper application as copper rich pig manure
The use of copper (Cu) in pig production to stimulate growth and improve feed efficiency is presently being questioned due to the potential environmental hazards associated with the repeated disposal of the resulting Cu rich manure in agricultural land. Results of field experiments conducted on …
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The effect of two levels of dietary ractopamine hydrochloride (Paylean®) supplementation on growth performance, feed efficiency and quantitative carcass traits in finisher gilts
… hydrochloride (RAC) has been used in the pig production industry for over 30 years. RAC is a beta-adrenergic agonist which is supplemented in the feed during the last 28 days prior to harvesting in finisher pigs to modify the pig's metabolism such that nutrients are redirected to favour …
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Tradeoffs and co-benefits among impacts of contrasting livestock systems
… externalities co-vary across contrasting production systems is limited. Research typically focuses on impacts in isolation, and the synergies or tradeoffs among them are assumed. To identify and promote the types of systems that best limit impacts or even carry co-benefits we need to …
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Alternative Feeding Resources of Mediterranean Origin to Improve Lamb Meat and Pork Quality
… are of Mediterranean origin used in lamb and pig production, on meat quality. In the first and second experiments, the lambs were grouped into three to receive different dietary treatments: a barley-based concentrate diet, or two different levels of dried citrus pulp (24% or 35%) to replace …
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Sustainability of intensified agricultural production in the Boyne catchment.
… of farm enterprises – dairying, beef, sheep and pigs. The motivation for this study was to examine the environmental sustainability of the Food Harvest 2020 targets. The study was carried out on the River Boyne catchment area. A wide-ranging environmental systems analysis was carried out to …
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Conservation genetics of traditional and commercial pig breeds, and evaluation of their crossbreeding potential for productivity improvement
… assurance of future global food security. Modern pig production has concentrated on a small number of commercialised breeds. This has significantly contributed to genetic erosion and loss of native breeds, deemed productively inefficient. It has been recommended to conserve the unique traits of …
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Agri-food system transformation : a case study of the effects on Cambodian pig value chain actors : a thesis presented in partial fulfilment of the requirements for the degree of Master of AgriCommerce, School of Agriculture and Environment, Massey University, Palmerston North, New Zealand
… enterprises of agri-food value chains. Pig production is a very important livestock sub-sector in Cambodia via both the provision of protein for the general population and critical employment and income stream not only for rural households but also all actors along the value chains. The …
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THE USE OF SALTY AND SUGARY FORMER FOOD PRODUCTS IN GROWING AND FINISHING PIG DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, BEHAVIOUR, GUT HEALTH, MEAT QUALITY AND FEED SAFETY
… whose availability is limited. Animal feed production is among the factors that contribute to worsen the food-feed competition. Thus, researchers in animal nutrition are looking for alternative feed sources to conventional ingredients. This thesis focused on the use of Former Food Products …
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Control and prevention of complicated Mycoplasma Hyopneumoniae among pigs reared in an age segregated production system
… of increasing economical importance in modem pig production which are excess death loss and excess numbers of substandard pigs, that is, pigs which do not reach the minimal weight to assure optimal revenue. In one farm system studied, the proportion of weaned pigs sold at full value was 21.4 …
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Technologies to Reduce Nutrient Excretion and Odor Production in Swine
… nitrogen and phosphorus, and also to reduce NH3 production and odor offensiveness from pig production, while producing environmentally friendly manure. The effect of reducing dietary crude protein (CP) in growing pigs was evaluated in two independent experiments, using either an adequate or a …
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Immune modulation mechanisms of porcine circovirus type 2
… a negative impact on the health and economics of pig production operations throughout the world. Porcine circovirus type 2 is the causative agent of PCVAD; however the presence of PCV2 alone is rarely enough to cause clinical disease. In order for the full development of PCVAD the presence of a …
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EPIDEMIOLOGY AND DISTRIBUTION OF PARASITES OF ANIMAL - SPECIFIC AND ZOONOTIC IMPORTANCE IN PIG FARMS IN NORTHERN ITALY.
In Italy pig production is traditionally based on intensive farming systems, predominantly confined indoors. In this context, parasitic diseases may often present a subclinical pattern resulting in less attention paid to them by farmers and veterinarians. Although oligosymptomatic trends …
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Immunomodulatory effects of whole yeast cells and capsicum in weanling pigs challenged with pathogenic escherichia coli
… causes of mortality and morbidity in commercial pig production. With recent global concern over antibiotic resistance, the development of nutritional technologies to support animal health during times of infection is more important than before. An experiment was conducted to evaluate the combined …
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Effectof feed rations on livestock performance and impact of effective microorganisms on litter odour and other gases emissions.
… gestation period as well as the high number of piglets renders pig production relatively viable, hence increasing the number of farms. Feedlot farming has increased this production but not without high waste and odour emission which may be hazardous to animals, workers and the surrounding …
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