9 results on '"Eduardo Morales Barrera"'
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2. Harina de atún negra en dietas de gallina para incrementar los ácidos eicosapentanoico y docosahexaenoico
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Eduardo Morales-Barrera, Omar Prado-Rebolledo, Adán Rodríguez-Michel, Luis Jorge García-Márquez, Teódulo Quezada-Tristán, and Silvia Carrillo-Domínguez
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General Medicine - Abstract
El objetivo fue determinar el efecto de la harina negra de atun (HNA) a diferentes concentraciones y tiempo de adicion en dietas para gallina sobre variables de produccion, calidad y concentracion de acidos grasos en el huevo y evaluacion sensorial. Se utilizo un diseno factorial 3 x 4. Se modificaron las variables de produccion al aumentar la concentracion de HNA. El nivel de colesterol fue mayor con 3 % de HNA, los lipidos totales se aumentaron al tiempo, el nivel mas alto fue el testigo y el mas bajo con 3 %, el acido docosahexaenoico (DHA) fue mayor al 3 % de HNA, el acido alfa linolenico (ALA) no obtuvo diferencias, el acido araquidonico (AA) y el acido linoleico (LA) mostraron sus valores mas bajos con un 2 % de HNA. En cuanto a la evaluacion sensorial color, olor y sabor tuvieron buena aceptacion. Por lo que se concluye que la HNA puede ser utilizada para enriquecer los valores nutricionales de la dieta de las aves more...
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- 2018
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3. Effect of Metarhizium anisopliae (Ascomycete), Cypermethrin, and D-Limonene, Alone and Combined, on Larval Mortality of Rhipicephalus sanguineus (Acari: Ixodidae)
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John E. Foster, Billy M. Hargis, Eduardo Morales-Barrera, Jaime Molina-Ochoa, Steven R. Skoda, Guillermo Tellez, Luis Jorge García-Márquez, Yureida B Minchaca-Llerenas, Omar Prado-Rebolledo, and Roberto Lezama-Gutiérrez more...
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0106 biological sciences ,Insecticides ,Metarhizium ,Veterinary medicine ,Serial dilution ,Rhipicephalus sanguineus ,030231 tropical medicine ,Metarhizium anisopliae ,01 natural sciences ,Cypermethrin ,Random Allocation ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Cyclohexenes ,Pyrethrins ,Animals ,Acari ,Pest Control, Biological ,Larva ,Tick Control ,General Veterinary ,biology ,Terpenes ,Inoculation ,biology.organism_classification ,010602 entomology ,Infectious Diseases ,chemistry ,Insect Science ,Entomopathogenic fungus ,Parasitology ,Limonene - Abstract
The effect of the fungus Metarhizium anisopliae Ma14 strain, D-limonene, and cypermethrin, alone and combined, on the mortality of Rhipicephalus sanguineus Latreille larvae was evaluated. Eight separate groups with 25 tick larvae were inoculated with the fungus, cypermethrin, and D-limonene, and four groups were used as untreated controls. The groups were inoculated with serial dilutions of each treatment material: for example, conidial concentrations were 1 × 101, 1 × 102, 1 × 103, 1 × 104, 1 × 105, 1 × 106, 1 × 107, and 1 × 108. A complete randomized experimental design was used. Significant differences were obtained between fungal concentrations, with larval mortalities ranging from 29 to 100%; the D-limonene concentrations showed significant differences, with mortalities that ranged from 47.9 to 82.6%, and cypermethrin mortalities ranged from 69.9 to 89.9% when each was applied alone. In the combined application, the serial dilution of the Ma14 fungus plus cypermethrin at 0.1% concentration caused mortalities ranging from 92.9 to 100%; the mix of serially diluted Ma14 plus D-limonene at 0.1% caused mortalities from 10.3 to 100%; and the mix consisting of serially diluted D-limonene plus cypermethrin at 0.1% caused mortalities from 7.4 to 35.9%. Further laboratory and field research could show that these materials, alone and in combinations, are useful in future tick management and control programs. more...
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- 2017
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4. Metabolismo en rumiantes y su asociación con analitos bioquímicos sanguíneos
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Arturo García-Casillas, Omar Prado-Rebolledo, Jesus Eduardo Morales-Barrera, and Erika Arias-Islas
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chemistry.chemical_classification ,chemistry ,Biochemistry ,Anabolism ,Catabolism ,Monosaccharide ,General Medicine ,Metabolism ,Polysaccharide ,Digestion ,Amino acid - Abstract
The present study is an analysis of scientific elements on the metabolism of ruminants: polysaccharides, proteins, and lipids. Where i) the fermentative digestion carried out by microorganisms, ii) the posruminal digestion and absorption and iii) the metabolism of each monomer is associated with the blood analytes that give us an approximation to the nutritional metabolism of the animal, also confer information on alterations and adjustments homeostatic. This review emphasizes the metabolism of monosaccharides, amino acids, and fatty acids. Therefore, the revised information aims to make the understanding of catabolic and anabolic processes in ruminant nutrition. more...
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- 2020
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5. Evaluation of a selected lactic acid bacteria-based probiotic on Salmonella enterica serovar Enteritidis colonization and intestinal permeability in broiler chickens
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Xochitl Hernandez-Velasco, Guillermo Tellez, Omar Prado-Rebolledo, Jesus Eduardo Morales-Barrera, Rafael Macedo-Barragán, Juan D. Latorre, Jaime de Jesus Delgado-Machuca, and Luis Jorge García-Márquez more...
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Male ,0301 basic medicine ,animal structures ,Salmonella enteritidis ,Permeability ,Salmonella enterica serovar enteritidis ,Microbiology ,law.invention ,03 medical and health sciences ,chemistry.chemical_compound ,Probiotic ,Food Animals ,law ,medicine ,Animals ,Colonization ,Lactic Acid ,Food science ,Cecum ,Poultry Diseases ,Salmonella Infections, Animal ,Intestinal permeability ,Bacteria ,General Immunology and Microbiology ,biology ,Probiotics ,0402 animal and dairy science ,Broiler ,04 agricultural and veterinary sciences ,biology.organism_classification ,medicine.disease ,040201 dairy & animal science ,Lactic acid ,Intestines ,030104 developmental biology ,chemistry ,Animal Science and Zoology ,Chickens - Abstract
Two experiments were conducted to evaluate the effect of a lactic acid bacteria-based probiotic (FloraMax-B11®) against Salmonella enterica serovar Enteritidis intestinal colonization and intestinal permeability in broiler chickens. Experiment 1 consisted of two independent trials. In each trial, day-old broiler chicks were assigned to one of two groups: control + S. Enteritidis or probiotic + S. Enteritidis. At 72 h post-S. Enteritidis challenge, haematology and caecal content were evaluated for S. Enteritidis colonization. In Experiment 2, day-old broiler chicks were assigned to one of four groups: negative control; probiotic; control + S. Enteritidis; or probiotic + S. Enteritidis. At 72 h post-S. Enteritidis challenge, chickens in all groups were given an oral gavage dose of fluorescein isothiocyanate dextran (FITC-d). In both trials of Experiment 1, a significant reduction (P more...
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- 2016
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6. Effect of Citric Acid, Phytase and Calcium Levels on the Calcium and Phosphorus Content in Egg: Yolk-Albumen and Shell, Yolk Color and Egg Quality in Diets of Laying Hens
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Juan Antonio-Bautista, Jesus Eduardo Morales-Barrera, José G. Herrera-Haro, David Hernández-Sánchez, Lily M. Vargas-Rodríguez, and Roberto López-Pozos
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food.ingredient ,040301 veterinary sciences ,Phosphorus ,Soybean meal ,0402 animal and dairy science ,chemistry.chemical_element ,04 agricultural and veterinary sciences ,Factorial experiment ,Calcium ,040201 dairy & animal science ,0403 veterinary science ,chemistry.chemical_compound ,food ,chemistry ,Yolk ,Phytase ,Food science ,Eggshell ,Citric acid - Abstract
To evaluate the effect of different levels of citric acid (CA) combined with phytase and calcium levels in the diets of laying hens on the calcium and phosphorus (P) contents of eggs: yolk-albumen and shell, yolk color and egg quality. A study was conducted with 24-week-old laying hens fed with a diet based on sorghum and soybean meal with 2.7 Mcal of EM/kg, 15% crude protein, 3.25% calcium and 0.25% available P. The levels of CA, phytase and calcium were 0%, 0.6% and 1.2%; 0 and 300 units of phytase (PHYU)/kg; and 3.0% and 3.25%, respectively. Phytase was added as an ingredient into to the diets, contributing 0.1% P and 0.3% calcium. A completely randomized factorial experiment was performed with a 3 × 2 × 2 design and 4 replications. The CA increased (P < 0.05) the P in the shell, and the combination of 1.2% CA, 300 PHYU phytase and 3.25% calcium increased (P < 0.05) the calcium in the eggshell. There was a CA × phytase × calcium interaction (P < 0.05) affecting egg yolk pigmentation; there were no differences in egg quality. It was concluded that adding CA to the diets of laying hens increases eggshell calcium content, and improves the phytase response. 1.2% CA × Phytase × 3.25% calcium significantly increases shell calcium by 0.56 g. Under the conditions of the present investigation, it would imply greater resistance of the eggs to be broken in the handling from the farm to the sales centers and consumer. Phytase interacts negatively with 0.6% CA at low calcium levels to degrade the yellow pigmentation of the yolk. more...
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- 2016
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7. Effect of Time and Fatty Acid Composition in Eggs of White Leghorn Hens Supplemented with Tuna Oil
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Rosa Maria Castillo-Dominguez, Mariano Jesus Gonzalez-Alcorta, Omar Prado-Rebolledo, Jesus Eduardo Morales-Barrera, A. Menconi, Billy Hargis, Jose Luis Vazquez, Guillermo Tellez, Xochitl Hernandez-Velasco, and Silvia Carrillo-Domínguez more...
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chemistry.chemical_classification ,Meal ,food.ingredient ,Linoleic acid ,Fatty acid ,Biology ,Feed conversion ratio ,Soybean oil ,chemistry.chemical_compound ,food ,chemistry ,Yolk ,Composition (visual arts) ,Arachidonic acid ,Food science - Abstract
The study evaluated the effect of time and fatty acid (FA) composition in eggs of laying hens supplemented with tuna oil (TO). Two hundred White Leghorn hens 30-week were divided into 5 treatments with 4 replicates of 10 birds each. Treatments were assigned randomly and consisted of 0%, 0.75%, 1.50%, 2.25% and 3% TO in commercial sorghum-soybean meal diets, in which the soybean oil was partially replaced. The experiment was conducted for 90 days. At days 28, 56 and 84 of the experiment, 10 eggs per replicate were collected for chemical analysis. Feed intake, egg production rate, egg weight, and feed conversion were not influenced by dietary treatment. FA content was significantly altered (P < 0.05) by TO, showing a progressive increase in egg n-3 FA (especially docosahexaenoic [DHA] and eicosapentaenoic [EPA] acids) when TO was added. Levels of EPA and DHA were higher (P < 0.05) in the egg lipids of TO fed hens than those in the control group. This was correlated (P < 0.05) with the concentration of TO in the diet. However, no significant differences were observed either in egg weight or percent of egg lay between groups. There was a high correlation (P < 0.05) between TO inclusion level in the diet and the incorporation of EPA (r = 0.96) or DHA (r = 0.92) into the egg yolk and an overall decrease in n-6 FA. There was a high correlation (P < 0.05) between TO inclusion level and the incorporation of linoleic acid (LA, r = -0.95) or arachidonic acid (AA, r = -0.96) into the egg yolk. The highest incorporation (P < 0.05) of total n-3 FA content in eggs was obtained with 3% TO/kg. This increase was proportional to TO inclusion levels in the diets (r = 0.95). The results indicate that the n-3 FA content in eggs can be increased by dietary supplementation with TO, and that TO can serve as a reasonable alternative feed ingredient in layer diets to produce a healthier choice of egg. more...
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- 2013
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8. Fatty Acid Deposition on Broiler Meat in Chickens Supplemented with Tuna Oil
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Mariano Jesus Gonzalez-Alcorta, Billy Hargis, Jesus Eduardo Morales-Barrera, Rosa Maria Castillo-Dominguez, Xochitl Hernandez-Velasco, Guillermo Tellez, Silvia Carrillo-Domínguez, Omar Prado-Rebolledo, and A. Menconi more...
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body regions ,chemistry.chemical_classification ,Chicken breast ,chemistry ,Broiler ,food and beverages ,Fatty acid ,N-3 fatty acids ,Food science ,Biology ,Tuna ,human activities ,Polyunsaturated fatty acid - Abstract
The aim of the present study was to evaluate the effect of feeding four levels of tuna oil on performance and fatty acid (FA) profiles of broiler chicken meat. 240 Ross broiler chickens were randomly assigned to 20 pens and divided into four treatments: 0%, 0.75%, 1%, and 1.25% of tuna oil. At 49 days, breast and legs-thighs muscles were processed for FA analysis. Concentrations of FA in legs and thighs meat were significantly higher when compared with breast meat. In both types of meats (breast and legs-thighs), the inclusion of 1.0% or 1.25% of tuna oil in the diet significantly increased (P < 0.05) the concentration of n-3 FA (especially docosahexaenoic and eicosapentaenoic acids). Fat in broiler breast contained a proportion of 29% saturated FA (SFA): 36% monosaturated FA (MFA): 35% polyunsaturated FA (PUFA); while legs and thighs meat had a proportion of 28% SFA: 38% MFA: 33% PUFA. The addition of tuna oil in the broiler diet significantly reduced the deposition of SFA, MFA, and PUFA in breast meat, while in legs and thighs these reductions were less noticeable. The significant reduction in the concentration of n-6 PUFA and the increment of n-3 PUFA were more evident in breast than in legs and thighs, and with the addition of 1% and 1.25% of tuna oil. The results of the present study suggest a difference in FA deposition attributable to supplementation with tuna oil. The addition of tuna oil could be recommendable to increase n-3 PUFA in both broiler chicken breast and legs-thighs meats, providing a healthier and functional chicken meat to consumer. more...
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- 2013
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9. Risks Involved in the Use of Enrofloxacin for Salmonella Enteritidis or Salmonella Heidelberg in Commercial Poultry
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Mikayla F. A. Baxter, Eduardo Morales-Barrera, Vivian Lucca, Xochitl Hernandez-Velasco, Guillermo Tellez, Ruben Merino-Guzman, Amanda Wolfenden, Billy M. Hargis, Nicole Calhoun, Juan D. Latorre, Omar Prado-Rebolledo, Jose L. Lobato-Tapia, Brittany D. Mahaffey, Victor M. Petrone-Garcia, K.D. Teague, and L.E. Graham more...
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0301 basic medicine ,Veterinary medicine ,Salmonella ,medicine.drug_class ,Firmicutes ,animal diseases ,Salmonella enteritidis ,030106 microbiology ,Antibiotics ,medicine.disease_cause ,susceptibility ,law.invention ,Microbiology ,03 medical and health sciences ,Probiotic ,law ,medicine ,Enrofloxacin ,Original Research ,metagenomics ,lcsh:Veterinary medicine ,Intestinal permeability ,General Veterinary ,biology ,poultry ,Bacteroidetes ,biology.organism_classification ,medicine.disease ,030104 developmental biology ,lcsh:SF600-1100 ,Veterinary Science ,medicine.drug - Abstract
The objectives of the present study were to evaluate the risks involved in the use of Enrofloxacin for Salmonella Enteritidis (SE) or Salmonella Heidelberg (SH) in commercial poultry and determine the effects of a probiotic as an antibiotic alternative. Two experiments were conducted to evaluate the risks involved in the use of Enrofloxacin for SE or SH in commercial poultry. Experiment 1 consisted of two trials. In each trial, chickens were assigned to one of three groups; control + SE challenged; Enrofloxacin 25 mg/kg + SE; and Enrofloxacin 50 mg/kg + SE. Chickens received Enrofloxacin in the drinking water from days 1 to 5 of age. On day 6, all groups received fresh water without any treatment. All chickens were orally gavaged with 10(7) cfu/chick of SE at 7 days of age and euthanized on 8 days of age. In Experiment 2, turkey poults were assigned to one of the three groups; control + SH; probiotic + SH; and Enrofloxacin 50 mg/kg + SH. Poults received probiotic or Enrofloxacin in the drinking water from days 1 to 5 of age. On day 6, poults received fresh water without any treatment. Poults were orally gavaged with 10(7) cfu/poult of SH at 7 days of age. Poults were weighed and humanely killed 24 h post-SH challenge to evaluate serum concentration of fluorescein isothiocyanate-dextran to evaluate intestinal permeability, metagenomics, and SH infection. In both trials of Experiment 1, chickens treated with Enrofloxacin were more susceptible to SE organ invasion and intestinal colonization when compared with control non-treated chickens (P 0.05). In Experiment 2, poults treated with 50 mg/kg of Enrofloxacin showed an increase in body weight, however, this group also showed an increase in SH susceptibility, intestinal permeability, and lower proportion of Firmicutes and Bacteroidetes, but with control group had the highest proportion of Proteobacteria. By contrast, poults that received the probiotic had the highest proportion of Firmicutes and Bacteroidetes, but lowest Proteobacteria. The results of the present study suggest that prophylactic utilization of Enrofloxacin at five times the recommended dose in poultry increases the susceptibility to salmonellae infections, and confirms that probiotics may be an effective tool in salmonellae infections. more...
- Published
- 2016
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