Miguel Angel Barrera- University of Sonora
Miguel Angel Barrera
- University of Sonora
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21
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Publications (21)
En el pasado los pobladores del noroeste de México se beneficiaron de la planta saya (varias especies del género Amoreuxia), aprovechándola tanto con fines alimenticios como medicinales, luego los colonizadores europeos la aprovecharon como alimento ante hambrunas. Actualmente algunas de estas especies presentan disminución en sus poblaciones, por...
Este manual expone una serie de prácticas que ayudan a la planeación de actividades y toma de decisiones de empresas ganaderas, con enfoque en la parte árida y semiárida de Sonora, México. Inicia con determinar la cantidad de biomasa comestible para el ganado por unidad de área, de acuerdo a la de cobertura del suelo y tipo de forraje, que permita...
Este manual está dividido en tres unidades: “Elaboración de productos cárnicos”, “Elaboración de productos lácteos” y “Elaboración de conservas de frutas y hortalizas”, todas con un total de 10 prácticas cada una. Incluye una breve descripción de cada producto, además de aquellos que son netamente sonorenses, como el queso cocido. Presenta desde la...
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The objective of this study was to assess the effect of adding a mixture of plant extracts on the productive performance, blood constituents, carcass characteristics, percentage relation between organ weight and live weight, quality, and sensory analysis of pork produced under heat stress conditions. The study was performed during th...
The objective of this study was to evaluate the effects of dietary supplementation of yeast culture (YC) in pigs under heat stress conditions on growth performance, blood metabolites, carcass traits, quality, and sensorial values of the meat. Thirty pigs (29.487 ± 1.46 kg) were stratified by body weight (BW) and randomly assigned to the following t...
Rehabilitating degraded arid lands requires overcoming biotic and abiotic limitations. The objective of this study was to determine if low-cost protective shelters improve the survival and growth of palo verde (Parkinsonia microphylla) plants during the first year of reforestation at degraded sites in the Sonoran Desert. Protective shelters were bu...
En la industria pecuaria es importante mantener al ganado en buen estado de salud para alcanzar niveles adecuados de producción. En la actualidad, el uso de antibióticos para el control de infecciones es limitado, debido a la resistencia de los microorganismos a estos fármacos. Por otro lado, los insecticidas y repelentes de origen sintéticos conti...
Currently, the use of plant growth promoting bacteria is a viable alternative to the indiscriminate use of agrochemicals. In order to obtain bacteria with the capacity to promote plant growth, in this work twelve strains with nitrogen fixation activity were isolated from the rhizosphere of bermuda grass (Cyonodon dactylon) ruderal. Based on the spe...
Growth performance and health status in three successive feeding phases (FI, FII and FIII, corresponding to 22-60, 60-90 and 90-113 kg of body weight, respectively), carcass characteristics and feed cost per kg gain by effects of different nutrient densities and of supplementation with live yeast, were evaluated in 60 growing-finishing pigs housed...
The food needs by the human population is increasing; In that sense, having a new crop can contribute to ameliorate the demand for food. The zaya (Amoreuxia palmatifida DC.) has been used as food both before and after the arrival of the European settlers in several states of northwest Mexico and southwestern United States. Over a hundred years ago...
A stochastic simulation model was constructed to determine the response of net primary production of buffelgrass (Cenchrus ciliaris L.) and its dry matter intake by cattle, in Marín, NL, México. Buffelgrass is very important for extensive livestock industry in arid and semiarid areas of northeastern Mexico. To evaluate the behavior of the model by...
Leucine (Leu) participates in the activity of cationic amino acid (aa) transporters. Also, branched-chain aa [Leu, isoleucine (Ile), and valine (Val)] share intestinal transporters for absorption. We conducted an experiment with 16 young pigs (body weight of about 16 kg) to determine whether Leu and Ile affect expression of aa transporters b(0,+) a...
An experiment was conducted to evaluate the effect of excess levels of Leu and Lys on the expression of b(0,+) and CAT-1 mRNA in jejunum, liver and the muscles Longissimus dorsi (LDM) and Semitendinosus (STM). Twenty pigs with an average initial BW of 16.4 ± 1.7 kg were used in a Randomized Complete Block. Dietary treatments (T) were as follows: T1...
Phytates in grains and soybean meal (SBM) interact with phosphorus (P) and calcium (Ca), preventing their use.
These molecules can also interact with amino acids (AA), proteins, and starch, affecting digestibility. In this study an experiment was conducted to determine whether in addition to raising the apparent ileal digestibility (AID) of P and C...
Phytates in grains and soybean meal (SBM) interact with phosphorus (P) and calcium (Ca), preventing their use. These molecules can also interact with amino acids (AA), proteins, and starch, affecting digestibility. In this study an experiment was conducted to determine whether in addition to raising the apparent ileal digestibility (AID) of P and C...
The effects of phytase supplementation on the apparent ileal digestibility (AID) of amino acids (AA) have been inconsistent. Two experiments evaluated the effect of providing a mixture of pancreatic enzymes (Pancreatin(®) ) to growing pigs fed sorghum-soybean meal diets supplemented with phytase on the AID of AA, energy, and phosphorus (P), as well...
Two experiments were conducted to determine the effect of phytase supplementation to sorghum-soybean meal diets on the apparent Heal digestibility (AID) of amino acids (AA) and performance of growing pigs. In one experiment, six pigs (average initial BW 86.1kg) fitted with a simple T-cannula at the distal ileum, were fed three diets in a repeated 3...
Two experiments were conducted to determine the effect of supplementation of xylanase to a wheat-based diet on the apparent ileal digestibility (AID) of AA and the performance of growing pigs fed diets limiting in AA. In Exp. 1, eight pigs (average initial BW = 20.5+/-1.2 kg) fitted with a simple T-cannula at the distal ileum, were fed four diets a...
Two experiments were conducted with crossbred (Landrace-Hampshire-Duroc) growing pigs to determine the relative biological availability (RBA) of lysine and threonine in wheat (Triticum aestivum). In experiment 1, 35 pigs (27.8+/-3.61 kg av. initial live weight) allotted to seven treatments with five replicates (3 males, 2 females) each, were used....
Two experiments were conducted with crossbred (Landrace- Hampshire-Duroc) growing pigs to determine the relative biological availability (RBA) of lysine and threonine in wheat (Triticum aestivum). In experiment 1, 35 pigs (27.8±3.61 kg av. initial live weight) allotted to seven treatments with five replicates (3 males, 2 females) each, were used. T...
