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MAIN CAUSES OF MORTALITY AND REMOVAL OF TWO PIG IMPROVED BREEDS IN CUBA. ECONOMICAL ASPECTS

González, F., Empresa Nacional Genética Porcina. Avenida de Independencia, Rancho Boyeros. La Habana et al. [2005]

Data from a total of 9 070 pigs born between 1994 and 1997 in the genetic pig farm "Pedro Pablo Rivera" and from the Large White and L35 genotypes (5 611 and 3 459 animals respectively) were used. Both breeds were subjected to similar standard conditions of management and feeding. The aim of the study was the determination the main causes of mortality and removal in a pig farm used for the pro ...

SUBJECT: animal performance; performance animale; wastes; genotypes; exploitation agricole

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

EXPERIENCES OF PARTICIPATORY RESEARCH IN INDIGENOUS (MAYA) POPULATIONS IN MEXICO. EXTENSIONISM OR MEETING OF KNOWLEDGE?

Sanginés, L.G., Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán et al. [2005]

An extensionism activity conducted in indigenous areas from the Mexican South East, mainly in the States of Chiapas and Quintana Roo, has been based on the methodology of participatory approach research. The main factor of evaluation has been the meeting of knowledge, starting from the fact that producers do account for an important, informal knowledge, which is going to be enriched with forma ...

SUBJECT: investigacion participativa; sistema agropastoriles.; ruminant; porcin; ruminants

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

Agricultural extensionism in Cuba shows three characteristics which give it its fortress: it is not a unique system, there is a permanent education and post-grade of human resources, and at the same time, there is a high potential availability of these human resources. Among weakness of this agricultural extensionism, difficulties shown due to the same different forms and conditions of product ...

SUBJECT: agricultural extension; extension agricola; vulgarisation agricole; sistema de extensión agrario (sea); cuba

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

PIG FAECES AND PRODUCTION OF EARTHWORMS AND COMPOST

Méndez, M.N., Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo. Morelia, Michoacán et al. [2005]

A 2x2 factorial arrangement with five replications per treatment was utilized to study compost production from pig faeces as substrate, by using two types of earthworms: Californian Red (Eisenia foetida) and Local (Helodrillus foestidus) and two source of humectation: tap water and effluent from a biodigestor. There was not significant (P0.05) interaction for the earthworm specie x source of h ...

SUBJECT: farmyard manure; porcin; fumier; swine; oligochaeta

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

PHYSICO-CHEMICAL PROPERTIES OF TROPICAL TREE LEAVES MAY INFLUENCE ITS NUTRITIVE VALUE FOR MONOGASTRIC ANIMAL SPECIES

Samkol, P., Centre for Livestock and Agriculture Development, University of Tropical Agriculture Foundation, Kandal Village, Kandal et al. [2005]

Four representative samples of new and old leaves from six species of wild, uncultivated tropical trees were investigated for chemical composition, in vitro (pepsin/pancreatin) digestibility and physico-chemical characteristics as affected by leaf senescence (new, recently open at the top of branches and old, near to yellow color at the bottom of branches). The tree species investigated were m ...

SUBJECT: arboles; especies monogastricas; chemicophysical properties; feuille; arbre

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

AN APPROACH TO THE RELATIONSHIP BETWEEN N AND ENERGY IN URINE OF PIGS FED SUGAR CANE PRODUCTS

Ly, J., Instituto de Investigaciones Porcinas. Gaveta Postal No. 1, Punta Brava. La Habana [2005]

Data from a total of 17 trials for determining balance of N and energy using 78 female growing pigs (20-50 kg were used to determine the calorific value of urinary N. In all trials the sources of energy were sugar cane products, including sucrose, syrup off and molasses. All diets contained 16% crude protein (Nx6.25) and daily feed intake was 0.10 g DM/W0.75. It was found a highly significant ...

SUBJECT: energie; subproductos del azucar; urine; nitrogen; sugar byproducts

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

NUTRIENT DIGESTIBILITY IN PELON MEXICANO PIGS FED GRADED LEVELS OF COWPEA MEAL (Vigna unguiculata)

Echeverría, R.W.E, Facultad de Medicina Veterinaria y Zootecnia et al. [2005]

A 3x3 Latin square design was used for studying in three Pelón Mexicano pigs with an initial average live weight of 40.6 kg, nutrient digestibility of diets containing raw cowpea (Vigna unguiculata) meal. Treatments consisted on the inclusion of 0, 15 and 30% of unprocessed cowpea meal in diets prepared with sorghum and soybean meal. Daily feed intake was adjusted according to metabolizable en ...

SUBJECT: porcin; cowpeas; digestibilite; protein quality; vigna unguiculata

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

THE EFFECT OF AGE OF WEANING ON THE POST-WEANING PERFORMANCE OF PIGLETS UNDER A TROPICAL ENVIRONMENT

Segura, J.C., Faculty of Veterinary Medicine and Animal Science, Autonomous University of Yucatán, Mérida et al. [2005]

Two experiments were conducted to determine the effect of age at weaning on the performance of piglets. In each experiment 240 pigs were weaned at either 2 or 3 week of age ad their performance was measured up to 70 days of age. In experiment 1, there were not significant (P0.05) differences from weaning to 28 days of age in body weight gain or feed consumption for piglets weaned at 14 or 21 d ...

SUBJECT: piglets; porcelet; comportement animal; destete; composicion quimica

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

A COMPARISON OF DIFFERENT SYSTEMS OF IDENTIFICATION IN EXTENSIVE REARING OF IBERIAN PIGS

Valdelvira, J.J, Departamento de Producción Animal, Universidad de Lérida. Avenida Rovira Roure, 191, 25198. Lérida et al. [2005]

A total of 432 piglets from two Iberian pigs' extensive farms (A and B), were identified with different electronic identifiers and compared with conventional tag (CC). In farm A, after the first period of fattening, no tag losses were observed, and reading failures were only observed in CE HDX (5.3%); with respect to traceability, no statistical differences between the three types of identifie ...

SUBJECT: electronique; electronics; porcin; agricultural extension; identificacion

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]

TRACEABILITY IN INTENSIVE PIG PRODUCTION BY USING CONVENTIONAL AND ELECTRONIC SYSTEMS OF ANIMAL IDENTIFICATION

Babot, D., Departament de Producció Animal, Universitat de Lleida. 25191 Lleida et al. [2005]

A total of 1032 pigs, fattened and slaughtered in commercial conditions, were identified with five different identification devices: plastic button ear tags (CC), half-duplex (CH) and full-duplex B (CF) electronic button ear tag; and, half-duplex (IH, 32 mm) and full-duplex (IF, 34 mm) intraperitoneally injected transponders; button ear tags had different security systems (A: open, y C: closed ...

SUBJECT: swine; electronique; electronica; electronics; trazabilidad

POSTED TO: Revista Computadorizada de Producción Porcina (Cuba) [1026-9053]