Francesch A.,Center Mas Of Bover |
Cartana M.,Center Mas Of Bover
British Poultry Science | Year: 2015
Abstract: 1. Effect of a diet with 5% grape seed inclusion, substituting for maize compared to a standard diet, was studied in the Penedes chicken. 2. A total of 128 chickens were used, half from each sex. Individual weights and feed intake were controlled weekly from the first d to 5th week and fortnightly until the 15th week. On the 16th week, chemical analyses of meat from 16 thighs from each diet and sex were carried out, as well as a sensory analysis of meat from 24 thighs. Differences between diet and sex were analysed using live body weight, feed intake, feed conversion rate (FCR), chemical composition and sensory attributes of the meat. 3. At the end of the experiment, no significant differences were observed on live body weight, feed intake and FCR due to diet. 4. Meat showed no differences due to diet in the percentages of protein, lipid and ash. 5. Meat from the grape seed diet showed a higher percentage of unsaturated fatty acids due to linoleic acid. It also showed a more nutty smell, a more metallic flavour and more stringiness. There was, also, less of a pork crackling odour and flavour, a less sweet flavour and less of a broiler meat flavour. © 2015 British Poultry Science Ltd.
Mendez Y.,Patronat per a la Recuperacio i Defensa de les Races Autoctones de les Illes Balears PRAIB |
Pons A.,Institute de Biologia Animal deles Illes Balears S.A. IBABSA |
Francesch A.,Center Mas Of Bover
Archivos de Zootecnia | Year: 2011
A total of 26 head and body measurements and 8 indexes have been taken in 42 hens of each Balearian breed: Ibizan, Minorca and Majorcan. These hens have been bred in standard conditions. The results have shown that Ibizan has been the heaviest one, and the one which has scored the longest cranium and keel of sternum too. Furthermore it has also reported a higher tarsus diameter. Minorca has achieved the highest eye and wattle length and the biggest comb and ear lobes, the longest neck, back, tail, folding wing and thigh and the biggest ornithological measure and wingspan. Majorcan is the lightest one and it has scored minor values. Ibizan hen has obtained a higher cranium and ear lobe index. Minorca has scored the higher value for the wattle index and Majorcan has achieved a bigger comb index. Majorcan hen showed the lower chest index.
Cartana M.,Center Mas Of Bover |
Francesch A.,Center Mas Of Bover
Archivos de Zootecnia | Year: 2011
In 2008 the herd books of Catalan chicken breeds were created and their management is conducted by IRTA. We present two different management systems which are being used depending on breeders associations; both allow us a strict control of the pedigree, it is well known that is difficult in birds. The adults registered in the Foundational, Definitive or Auxiliary Registers, at the moment of the reproduction, they were housed on individual cages. IRTA designed the matings and reproduced the selected birds by artificial insemination. In Prat breed Association, the partners are situated in the origin zone and the breeders are in the farms since the birth day. At the moment of the reproduction, the partners collected the numbered eggs and they were transported to IRTA where the birth, the identification and the register of the newborns in the Birth Register took place. The rearing and the selection were carrying out in the breeder's farms. In that moment there are 175 males and 461 females registered. In Penedesenca and Empordanesa breed Associations, the partners are widely dispersed. In this case rearing, selection and reproduction were carrying out in IRTA. When selected birds were reproduced, they were provided to the breeders who continued with the conservation. At present, in Penedesenca breed herd book there are 204 males and 420 females and in Empordanesa breed herd book there are 229 males and 527 females.
Francesch M.,Center Mas Of Bover |
Perez-Vendrell A.M.,Center Mas Of Bover |
Broz J.,DSM Nutritional Products Ltd
British Poultry Science | Year: 2012
1. Two trials were conducted to evaluate the effects of a mono-component thermostable endo-1,4-β-xylanase derived from Thermomyces lanuginosus on the nutritive value of wheat-based broiler diets. In a 5-week growth trial, the efficacy of xylanase supplementation at 0, 100, 150, 200, 400 and 4000 FXU/kg diet was evaluated. A short-term balance trial was carried out according to a 4 × 2 factorial arrangement of treatments, involving 4 wheat cultivars and endo-xylanase at 0 or 200 FXU/kg.2. In the growth trial, enzyme supplementation from 0 to 400 FXU/kg reduced feed intake and improved feed conversion linearly. Digesta viscosity was significantly reduced by all enzyme inclusion levels by 49·6-56·9%, in a quadratic manner.3. In the balance trial, xylanase supplementation resulted in a significant improvement of protein, lipid and dry matter apparent digestibility coefficients of diets, accompanied by improved dietary AMEN values. There was a significant wheat × enzyme interaction on AMEN and lipid digestibility. There was a significant effect of wheat cultivar on dry matter digestibility. © 2012 Copyright Taylor and Francis Group, LLC.
Martin I.,Center Mas Of Bover |
Rovira M.,Center Mas Of Bover
Acta Horticulturae | Year: 2011
The importance of type of pollination (self or cross), and its possible influence on fruit characters of two self-compatible almond cultivars 'Francolí' and 'Guara' growing in commercial orchards, was observed during two years (2006 and 2007). Nearly 800 fruits from 'Francolí' and 600 from 'Guara' were collected and characterized by their weight, length, width, and thickness then germinated. Molecular markers (isozymes and SSR s) were applied to the seedlings in order to determine the pollen source of each almond. Self-pollination was high in both cultivars: 86.6% self-pollination in 'Francolí' and 69.3% in 'Guara' while crosspollination was low at 13.4% in 'Francolí' and 30.7% in 'Guara'. So far, the results for both cultivars show that the type of pollination does not affect the nut characteristics studied.
Morales-Lopez R.,Center Mas Of Bover |
Auclair E.,Lesaffre Feed Additives |
Van Immerseel F.,Ghent University |
Ducatelle R.,Ghent University |
And 2 more authors.
British Poultry Science | Year: 2010
1. Three experiments were carried out to study the effects of two experimental yeast cell wall (YCW) supplements, one from the yeast extract industry and the other from the brewery industry, added to maize or wheat based-diets, on performance and intestinal parameters of broiler chickens (Ross 308). 2. In the first and second experiments, a completely randomised block design with 4 experimental treatments was used: T-1) Negative control, no additives T-2) Positive control, avilamycin group (10mg/kg feed), T-3) Yeast extract-YCW (500 mg/kg), and T-4) Brewery-YCW (500 mg/kg feed). There were 6 replicates of 20 (experiment 1) and 22 (experiment 2) chicks per treatment. 3. In experiment 1 (wheat based diets), yeast extract-YCW increased BW and daily feed intake (42 d). The effects were comparable to those of avilamycin. In experiment 2 (maize based diet), avilamycin, yeast extract-YCW and brewery-YCW treatments improved the feed conversion ratio with respect to the negative control group (0 to 14 d). 4. At 24 d, in both experiments, the ileal nutrient digestibility and ileal bacterial counts were not affected by any experimental treatment. In maize diets, lower intestinal viscosity was obtained with avilamycin, yeast extract-YCW and brewery-YCW than with the negative control. In wheat diets, yeast extract-YCW and brewery-YCW reduced intestinal viscosity. 5. A third experiment was conducted to study the effect of yeast extract-YCW on animal performance, intestinal mucosa morphology and intestinal viscosity. A 2 × 2 factorial arrangement of treatments was used; one factor was the dietary yeast extract-YCW supplementation (0 or 500 mg/kg feed) and the other the cereal in the diet (maize or wheat). 6. At 43 d, the heaviest BW was in chickens fed on yeast extract-YCW compared to those given the negative control. At 22 d, yeast extract-YCW increased villus height, mucus thickness and number of goblet cells with respect to negative control. 7. Results of these experiments suggest that supplementation of yeast extract-YCW to broiler chicken diets increased animal performance by favouring intestinal mucosal development. © 2010 British Poultry Science Ltd.
Rovira M.,Center Mas Of Bover
Acta Horticulturae | Year: 2014
The presence of Apple mosaic ilarvirus (ApMV) was studied in different hazelnut cultivars growing in a trial at IRTA-Mas de Bover, Constantí (Tarragona), northeastern Spain, during a period of 9 years to test the natural transmission of the virus. Eleven cultivars from three different countries were planted in the trial. Two Spanish cultivars were infected by ApMV at the time of planting and the remaining material was ApMV free. A visual observation of leaves to check symptoms of mosaic and the enzyme linked immunosorbent assay (ELISA) to detect ApMV were periodically performed every two years. In general, no variation related to the presence of ApMV in the trial was detected. Only one tree of 'Lewis' cultivar, showing the characteristic mosaic symptoms, was positive to ApMV by ELISA in the last year. The rest of the initially healthy trees in the trial did not present any symptoms on leaves and remained free from ApMV infection.
Batlle I.,Center Mas Of Bover
Tree Genetics and Genomes | Year: 2016
This paper proposes a new breeding strategy, marker-assisted introgression (MAI), to obtain lines of perennial species with a single introgressed fragment from a compatible species two generations after the interspecific hybrid. MAI allows enrichment of the genome of a species with genes from a wild or exotic relative in a short timeframe and with an intermediate step that allows a first exploration of genes/QTLs that the donor species can provide to the target crop. This method has three phases: (1) creating a large backcross one (BC1) population to select, with markers, a reduced number of individuals (15–30, called the prIL set) with a low number of introgressions; (2) phenotyping the prIL set for the traits of interest and inferring the inheritance and map position of segregating major genes/QTLs based on the known genotypes of the prILs; and (3) advancing selected lines carrying the traits of interest to a next generation of backcross or selfing to obtain individuals with a single introgression in the background of the elite commercial germplasm. The proof of concept of this strategy was implemented by using peach as the recurrent species and almond as the donor. The whole process can be done in 9–10 years as the identification of the first line with one introgression was after 5 years (2006–2011), and 4–5 additional years are needed for phenotypic evaluation of selected lines. The expansion of this method to other perennial clonally propagated crops and to other species of Prunus compatible with peach is discussed. © 2016, Springer-Verlag Berlin Heidelberg.
PubMed | Rovira i Virgili University and Center Mas Of Bover
Type: | Journal: European journal of nutrition | Year: 2016
Several studies have suggested that flavanols may have antiobesity effects; however, those effects clearly depend on the experimental conditions. In a previous study, we found that a single acute dose of grape seed proanthocyanidin extract (GSPE) has satiating effects. We therefore hypothesise that satiating doses of GSPE could be used to reduce body weight gain, and our present objective was to define the most effective dose.We assayed two GSPE doses in aged male Wistar rats. First we performed a subchronic (8-day) treatment by intragastric administration, which was repeated after a washout period. We measured body weight, energy intake and faeces composition; we performed indirect calorimetry; and we analysed the mRNA expression of genes involved in lipid metabolism to determine the target tissue for the GSPE.We observed that 0.5gGSPE/kgBW significantly reduced food intake and thus the amount of energy absorbed. This dosage also increased lipid oxidation in subcutaneous adipose tissue, thus causing a higher total energy expenditure. These combined effects caused a decrease in body weight. Conversely, 1g GSPE/kg BW, which also reduced energy absorption after the first treatment, had a rebound effect on body weight gain which resulted in a lower response to the proanthocyanidin extract. That is, after the second treatment, the GSPE did not reduce the energy absorbed or modify energy expenditure and body weight.GSPE at a dose of 0.5g/kg can reduce body weight by limiting food intake and activating energy expenditure in subcutaneous adipose tissue.
PubMed | Center Mas Of Bover
Type: Journal Article | Journal: British poultry science | Year: 2015
1. Effect of a diet with 5% grape seed inclusion, substituting for maize compared to a standard diet, was studied in the Penedes chicken. 2. A total of 128 chickens were used, half from each sex. Individual weights and feed intake were controlled weekly from the first d to 5th week and fortnightly until the 15th week. On the 16th week, chemical analyses of meat from 16 thighs from each diet and sex were carried out, as well as a sensory analysis of meat from 24 thighs. Differences between diet and sex were analysed using live body weight, feed intake, feed conversion rate (FCR), chemical composition and sensory attributes of the meat. 3. At the end of the experiment, no significant differences were observed on live body weight, feed intake and FCR due to diet. 4. Meat showed no differences due to diet in the percentages of protein, lipid and ash. 5. Meat from the grape seed diet showed a higher percentage of unsaturated fatty acids due to linoleic acid. It also showed a more nutty smell, a more metallic flavour and more stringiness. There was, also, less of a pork crackling odour and flavour, a less sweet flavour and less of a broiler meat flavour.