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Résultats de la recherche

Showing items 1 through 9 of 14.
  1. Library Resource
    Documents et rapports de conférence
    décembre, 2011
    Espagne

    The Celta pig breed was the most important in Galicia (northwest of Spain) until beginning of the 20th century, suffering from this moment a continuous decrease caused by the introduction of improved breeds and their crosses. For this study 19 Celta pig breed from Santiaguesa genotype and 15 from Carballina genotype were used. Animals were weighted once at month during 12 months. To Santiaguesa genotype not significant differences (P>0.05) were observed until 198 days but it has been detected significant differences (P0.05) in any growth curve between gender.

  2. Library Resource
    Documents et rapports de conférence
    décembre, 2011

    Animal tissue composition is determinant in the quality of animal products and is influenced by several factors including diet, genetic type, age and sex. Diet effect on Iberian pig's tissue composition is a relevant issue with productive and economic implications, not well understood to date. In this work we evaluated the effect of the diet fatty acid composition of fattening Iberian pigs, with respect to different tissues FA composition and transcription of three key genes coding for lipid metabolism enzymes (SCD, ME1 and FASN).

  3. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    8 flocks of Ojinegra ewes (n=5634) were studied during a productive cycle (2007-2008) in Teruel (Spain), a low-mountain dry and harsh area. Ojinegra ewes belong to a local breed, of small-medium size, reared under a semi-extensive system of management. Throughout three seasons (autumn, winter and spring) weight and BCS of 5634 ewes at lambing and weaning were recorded and 5786 lambs were weighed fortnightly form birth to weaning. Season had a significant (p>0.01) effect on weight and BCS of ewes and on lambs average daily gain.

  4. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    In dairy goat breeds, kids are a subproduct, hence they were weaned as soon as possible. The aim of the present work was to study the influence of lactation system on carcass quality of the two main dairy Spanish goat breeds. Present work is part of a large Project whose objective is the characterisation of the carcass and meat from 7 Spanish goat breeds. Thirty kids, 15 per breed, were slaughtered at 4,5 kg, including head and offal. Half of them were fed with natural milk, the other half with artificial milk.

  5. Library Resource
    Documents et rapports de conférence
    décembre, 2011
    Espagne

    The aim of this study was to analyze the effect of the farm geographical location and of the theoretical time distance between the farm and the insemination center on the fertility after cervical AI. Data from 18,528 AI in Rasa Aragonesa ewes belonging to the UPRA selection scheme were recorded. An average fertility of 54.3% was observed, with significant differences among the three provinces studied (Huesca: 58.6%; Zaragoza: 55.6%; Teruel: 44.3%; p

  6. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    At present the Race Burguete is regarded as Breed in danger of extinction. The products marketed can be classified in Lechal (the colt once weaned enters the fattener) and Quinceno (foals that once weaned remain several months at grazing and around 15 months of age are fattening). The aim of this work is to characterize both systems of production and to obtain data on the behaviour of the race in order to advise farmers belonging to the association. A total of 22 Burguete colts, 12 lechales and 10 quincenos, were slaughtered. Both cases included males and females.

  7. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    Among the autochthonous breeds in Spain, the Ripollesa sheep breed is the most common in Catalonia. It is rustic, with a convex profile, white wood of entrefine type and a characteristic pigmentation. Following the recommendations of the FAO, the morphologic characterization of the Ripollesa ewe has been carried out, as well as the analysis of its variability. A quantitative study from twelve zoometric measures and weight was carried out in a total of 224 females.

  8. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    MESMIS methodology (Ridaura et al., 2002) has been tested to assess sustainability of two different commercial flocks within the breeding scheme of the Latxa sheep in the Basque Country. The evaluation is based on technical, economical, environmental and social indicators derived from a SWOT analysis of the system. The assessment has been made by the comparison of two commercial flocks managed under different environmental conditions by means of specific nutrition and reproduction practices.

  9. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    A survey that gathered information about farm structure, grazing system, feeding and reproductive management was conducted in 181 farms. Parda de Montaña is the main breed regarding cows (92.4%), heifers (95,3%) and calves (84,1%). Bulls belong to Parda de Montaña (65%) breed but also Limusine, Charolaise and Blonde d'Aquitaine. Farms had an average size of 53.6 cows. Feeding depends largely on grazing in different forage resources, from June to October in high mountain ranges, in spring and autumn in natural meadows and forage crops.

  10. Library Resource
    Documents et rapports de conférence
    décembre, 2009
    Espagne

    Surveys were conducted to 141 farmers registered in the FERPAM at Asturias (A), Cantabria (C) and Castilla and Leon (CL) regions, with the aim to know animal production system characteristics. Racial diversity was high (57.4% of the cows are "Parda de Montaña" (PM) and the 25.2% are cross with other breeds) and only 24.1% of farms have PM pure-breed animals. The average herd size was 32.1 cows in A, 35.3 in C and 64.6 in CL. The 95% of farms are located in mountain areas. The animals are kept indoors 3.7 months/year, as average. The average age of calves weaning was 5.8 months.

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