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Segregation of primiparous sows and their progeny as a procedure to optimise productivity, the quality and the feed

The project is to design strategies related to the total segregation of primiparous sows and their progeny, in order to improve general performance, quality and food safety.

The objective of the project is to design strategies related to the total segregation of primiparous sows and their progeny, in order to improve general performance, quality (more homogeneity) and food safety (less risk of antibiotic residues). The primiparous sow's progeny receive less defences and less milk during the pregnancy and lactation periods, and usually present many more problems during the fattening period. If these animals are reared independently, the final results will probably be much better in both these animals and the multiparous offspring, since the first will then not be a source of pathogens to the latter. At the same time, the primiparous sows are animals very different to those that are multiparous (lower weight, less sexual development, lower reserves, greater need to grow during pregnancy and lactation), and reproductive and performance results could probably be much better if they are reared independently from multiparous sows. Therefore, the objective will cover different aspects of: - Nutrition: * Nutritional requirements of piglets and fattening pigs depending on parity number of sow; * Influence of feeding on differences in growth and carcass composition of fattening pigs depending on the parity number of sows; * Interest of specific raw materials (egg meal with immunoglobulin's, porcine plasma, digestive peptides, etc) in specific diets for piglets from primiparous sows; * Specific nutritional programmes for primiparous sows, to optimise the skeleton, reproductive and muscular systems; * Differences in insulin resistance at the end of gestation between primi- and multiparous sows; * Differences in amino acid needs at the end of gestation between primi- and multiparous sows; * Influence of feeding on differences in milk-production between primi- and multiparous sows; * Influence of feeding on differences in milk-composition (with special attention paid to immunoglobulins) between primi- and multiparous sows; * Development of new concepts in piglet diets in accordance with the parity number of the piglet mother. - Facility requirements (including feeders, identification systems), depending on size, age and parity number of the sow. - Reproductive management of primiparous versus multiparous sows * Artificial insemination systems. - Performance and economics. * Performance in piglets and fattening pigs depending on parity number of sow; * Development of immunity of piglets depending on parity number of sow; * Profitability in piglets and fattening pigs depending on parity number of sow. - Quality and safety * Medication needs depending on type of animals; * Homogeneity in segregated farms versus in not segregated farms. The project will take place over 3 years (2008-2010). Keywords: primiparous sows, segregation, pig production.
Acronym: 
GILT_SEGREGATION
Project ID: 
4 138
Start date: 
01-01-2008
Project Duration: 
36months
Project costs: 
3 180 000.00€
Technological Area: 
Food Microbiology / Toxicology / Quality Control
Market Area: 
Animal Husbandry

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