26 research outputs found
DĂ©termination de la couleur et de la valeur nutritionnelle de la viande dâaulacodes sauvages (Thryonomys swinderianus, Temminck, 1827)
Lâaulacode est un rongeur sauvage, hystricomorphe, typiquement africain, dont la viande est trĂšs apprĂ©ciĂ©e par les consommateurs de gibier. Cependant, les caractĂ©ristiques nutritionnelles et organoleptiques de ce gibier sont mal connues. Notre travail avait pour but de dĂ©terminer la qualitĂ© sensorielle et nutritionnelle de la viande dâaulacodes sauvages. Cette Ă©tude a Ă©tĂ© rĂ©alisĂ©e Ă partir des muscles du membre pelvien de dix (10) sujets adultes, dont cinq (5) mĂąles et cinq (5) femelles dâun poids moyen de 3,5 kg vif, issus des prises de chasse en CĂŽte dâIvoire. La couleur des muscles a Ă©tĂ© apprĂ©ciĂ©e selon un jugement visuel, Ă lâaide dâune grille dâintensitĂ© de la couleur codifiĂ©e ; tandis que la valeur nutritionnelle de la viande a Ă©tĂ© Ă©valuĂ©e par analyses bromatologiques et biochimiques des muscles prĂ©levĂ©s selon les techniques usuelles de dissection des animaux de laboratoire. Nos rĂ©sultats montrent que les viandes dâaulacodes femelles et mĂąles ne diffĂšrent significativement quâau niveau de la fraction minĂ©rale car il ressort que, leurs teneurs en protĂ©ines, en eau et en matiĂšre grasse sont sensiblement Ă©gales. Dâun point de vue gĂ©nĂ©ral, la viande dâaulacode sauvage, comparĂ©e Ă celle de certaines viandes de boucherie, a une teneur protĂ©ique (20,01%) proche de celle du veau, du poulet et du boeuf maigre (20 Ă 20,5%) ; mais qui est infĂ©rieure Ă celle du lapin (21 Ă 23%). En outre, son taux dâhumiditĂ© (77,35%) est supĂ©rieur Ă celui du poulet, du lapin et du porc (60 Ă 75,3%). Par ailleurs, cette viande renferme une teneur en matiĂšres grasses (1,44 %) infĂ©rieure Ă celle du veau (1 Ă 7%), du lapin, du poulet et du porc (0,6 Ă 14,4%). Hormis le calcium, la fraction minĂ©rale de la viande dâaulacode sauvage est plus faible que celles du lapin, du poulet, du veau et du porc.Mots clĂ©s : Aulacode sauvage, membre pelvien, muscles, viande, couleur, nutrition
Etude radio-anatomique du valgus-varus chez les poulets dâelevage
La prĂ©sente Ă©tude a pour but dâĂ©valuer les troubles locomoteurs chez les poulets dâĂ©levage. LâexpĂ©rimentation que nous avons entreprise, sâest dĂ©roulĂ©e en deux (2) phases ; dâabord en saison sĂšche froide, puis en saison chaude humide, avec une tempĂ©rature moyenne respective de 28°C et de 32,8°C. Pour chaque phase expĂ©rimentale, deux cent (200) poussins de chair dâun jour de souche Kobb 500 en provenance dâun couvoir local (SEDIMA), ont Ă©tĂ© rĂ©ceptionnĂ©s et rĂ©partis au hasard en quatre (4) lots de 48 animaux chacun, dont un (1) lot tĂ©moin (T) nourri Ă base dâaliment sans anticoccidien et trois (3) lots supplĂ©mentĂ©s (A, B et C) avec respectivement les ionophores : lasalocid sodium (90 ppm), monesin (100 ppm) et narasin (70 ppm). Les poulets ont Ă©tĂ© Ă©levĂ©s au sol pendant sept (7) semaines, avec une pĂ©riode de retrait dâune semaine au cours de laquelle ils ont tous reçu un aliment dĂ©pourvu dâanticoccidien. Les tibias des poulets prĂ©sentant des troubles locomoteurs ont Ă©tĂ© rĂ©cupĂ©rĂ©s et radiographiĂ©s. Les rĂ©sultats obtenus ont montrĂ© que les sujets des lots traitĂ©s ont prĂ©sentĂ© les meilleures performances de croissance et aussi des troubles locomoteurs. Il ressort de ce travail que les poulets avaient des troubles locomoteurs de type varus du sĂ»rement Ă leur vitesse rapide de croissance et Ă leur poids. Câest pour cela nous avons recommandĂ© que les regards ne soient uniquement pas tournĂ©s vers le gain de poids mais aussi et surtout sur les problĂšmes de boiterie qui sont en Ă©troite corrĂ©lation avec le gain de poids, la vitesse de croissance et le programme de distribution des aliments.
Mots clés : Varus, Valgus, tibia, Poulets, Elevage.
English abstract:
Radio-anatomic study of valgus-varus at breeding poultry
This study has been studied for locomotor disorders. The experiment we undertook was conducted in two (2) phases; in dry temperature, then in hot temperature, with an average temperature of 28 ° C and 32.8 ° C. For each experimental phase, two hundred (200) chairs of a day Kobb 500 strain from a local hatchery (SEDIMA), were received and randomly presented in four (4) batches of 48 animals each, including one (1) control batch (T) fed with food without anticoccidial and three (3) supplemented lots ( A, B and C) with respectively ionophores: lasalocid (90 ppm), monesin (100 ppm) and narasin (70 ppm). We waited during the month of September (7). The shins of the chickens were recovered and X-rayed. The results have been reported. They were compared to better growth performance and locomotor problems. . That's why we've recommended that these are just tournaments for weight gain but also and above all for content problems that are closely correlated with weight gain, speed of growth and distribution program food.
Keywords: Varus, Valgus, tibia, Chickens, Breedin
DISCRIMINATION OF FAMILY ENVIRONMENT AMONG PARENTS OF CHILDREN WITH DIABETES AND PARENTS OF CHILDREN WITH AUTISM
Oxidative stress, inflammation and angiogenesis markers in elite female water polo athletes throughout a season
Elite athletes undergo heavy training programs throughout the year. The aim of the present study was to evaluate blood biomarkers of redox status, oxidative stress, inflammation and angiogenesis over the course of a competitive season in elite female water polo players. The biomarkers were evaluated in four distinct phases of an athletic season. It was found that the reduced glutathione (GSH) concentration was significantly increased, whereas catalase activity was decreased in erythrocytes in phases 3 and 4 compared to phase 2. Plasma concentration of thiobarbituric acid reactive substances (TBARS) was increased in phases 3 and 4 compared to phases 1 and 2, the concentration of protein carbonyls was increased in phase 4, and total antioxidant capacity (TAC) was decreased in phases 2 and 3. Plasma monocyte chemoattractant protein-1 (MCP-1) was decreased in phases 3 and 4; interleukin-10 (IL-10) was increased in phase 4, whereas no change was observed for adiponectin and endoglin. The findings of this study indicate that oxidative stress and inflammation varies over the season in elite female water polo athletes and this information might be used to apply remedies for optimizing athletic performance and accelerating training recovery. (C) 2013 Published by Elsevier Ltd
Dynamic associations of heterochromatin protein 1 with the nuclear envelope
To study the dynamics of mammalian HP1 proteins we have microinjected recombinant forms of mHP1α, M31 and M32 into the cytoplasm of living cells. As could be expected from previous studies, the three fusion proteins were efficiently transported into the nucleus and targeted specific chromatin areas. However, before incorporation into these areas the exogenous proteins accumulated in a peripheral zone and associated closely with the nuclear envelope. This transient association did not occur when the cells were treated with deacetylase inhibitors, indicating an acetylation-inhibited interaction. In line with these observations, recombinant HP1 proteins exhibited saturable binding to purified nuclear envelopes and stained the nuclei of detergent-permeabilized cells in a rim-like fashion. Competition experiments with various M31 mutants allowed mapping of the nuclear envelope-binding site within an N-terminal region that includes the chromodomain. A His(6)-tagged peptide representing this region inhibited recruitment of LAP2ÎČ and B-type lamins around the surfaces of condensed chromosomes, suggesting involvement of HP1 proteins in nuclear envelope reassembly
Prevalence of bovine brucellosis and related risk behavior in the suburban area of Dakar, Senegal
The objective of this study was to evaluate the prevalence and the frequency of risk behaviors in the zoonotic transmission of bovine brucellosis in suburban Dakar. The individual serological status of 300 cattle distributed in thirty farms in this area was determined by the rose Bengal and complement fixation tests. The frequency of risk behaviors toward this zoonosis was determined using two epidemiological surveys that inventoried the known risk factors of brucellosis transmission between animals and humans. Taking into account the sensitivity and specificity of rose Bengal and complement fixation tests used in series, i.e. 85% and 98.75 %, respectively, the true prevalence was estimated to be 36.36%. At least one animal was infected in 96.6% of the herds. Positivity to the complement fixation test was significantly associated with age, breed, abortion and the presence of bursitis in cattle. The risk behaviors the most frequently observed in humans in this area were: assisting during calving and abortion, handling of aborted fetuses without gloves, and consuming unpasteurized raw or curd milk and fresh cheese. These results show that brucellosis is present in dairy cattle farms in suburban Dakar. Since the milk produced in these farms is used to supply the city of Dakar, measures must be developed to promote brucellosis prevention methods aimed at Dakarâs population