Estrus distribution in hair ewes mated in November-D ecember under controlled conditions in Northern Mexico

An experiment with hair ewes was carried out in Northern Mexico to determine the estrus distribution after ram introduction to the herd, the effects of animal live weight (LW) on estrus distribution (ED); and the effects of body condition (BC) on estrus distribution (ED) respectively. The experiment was conducted at the El Pénsil Sheep Farm in Chihuahua, Mexico. Two hundred and sixteen ewes and nine rams were used for this experiment. Animals age range was 2.5±0.168 years, animal live weight (LW) of 32.07±0.417 kg, and body condition (BC) ranking score of 3.26±0.047, in a scale 1 to 5. Animals were grazed on pastures with a mix of Bermuda grass and alfalfa for 8 hours a day. On this experiment, total of nine stallions Kathadin, Pelibuey and Black Belly breeds were used. The experiment was conducted between November 19 and December 16, 2011. Descriptive statistics were used to analyze the data. The results indicated that 41% of the ewes reached an estrus between the 6th and 11th day after the introduction of the rams. The highest percentage of estrus (52%) occurred in ewes with a LW between 30 and 40 kilograms; and a BC between 3 and 3.5. All ewes reached an estrus 18 days after introduction of the rams to the herdUn experimento con ovejas de pelo se llevó a cabo en el norte de México para determinar la distribución de celo después de la introducción de los sementales, así como el efecto del peso y condición corporal sobre él celo en ovejas de pelo en el norte de México, se Se utilizaron 216 ovejas adultas de pelo, de una edad de 2.5±0.168 años, con un peso promedio de 32.07±0.417 kg y una condición corporal (CC) de 3.26±0.047, en una escala de 1 a 5. Se alimentaron en pastoreo, ocho horas diarias en una pradera combinada de pasto bermuda con alfalfa. Se utilizaron 9 sementales de las razas Kathadin, Pelibuey y Panza negra, tres de cada raza. El empadre dirigido se inició el 19 de noviembre de 2011 y termino el 16 de diciembre. La información obtenida se analizó con estadística descriptiva, se determinó el número de ovejas en celo por día, porcentaje de celos de acuerdo el peso y CC. Aproximadamente el 41% de las ovejas presentaron celo entre los días 6 al 11. El 52% de los celos se registró en las ovejas que pesaron entre los 30 y 40 kg. El mayor porcentaje de celos se presentó en las ovejas con CC 3, 3.5 y 4. Todas las ovejas entraron en celo a los 18 días, el mayor porcentaje de celos se registró en las ovejas que pesaron entre 30 y 40 kg y CC de 3 a 3.

Effect of huitlacoche (Ustilago maydis DC Corda) paste addition on functional, chemical and textural properties of tortilla chips

AbstractThis study analyzed the addition of huitlacoche paste (HP) in baked tortilla chips (TC), evaluating its effects on functional, physicochemical and structural changes during processing. Two blue corn grains were nixtamalized, stone milled, air dried and milled to obtain flour; commercial blue corn flour (TM1) and commercial TC (TM2) were used as controls. Additions of 0, 3, 6 and 9% of HP were formulated; masas were prepared at 55% moisture content (MC), precooked and baked in an industrial machine. TC crispiness was influenced by grain characteristics and percentage of HP. Huitlacoche paste addition caused an increase in total dietary fiber (from 5.27 to 14.54%), total soluble phenolics content (from 17.52 to 37.60 mg GAE/100 g) and antioxidant capacity (from 6.74 to 7.98 μmol TE/g) in TC. Results suggest that tortilla chips added with huitlacoche can be an alternative to prepare this traditional edible fungus and produce healthier snacks, not fried and enriched with bioactive compounds

Implantación de válvula tricúspide transcatéter en paciente con disfunción de bioprótesis

Resumen: Se presenta el caso de un paciente al que se le implanta una prótesis transcatéter en posición tricúspide vía vena yugular interna sobre una bioprótesis disfuncionante demostrando que es una alternativa terapéutica válida a la reintervención en esos enfermos de alto riesgo quirúrgico. Abstract: The case is presented of a patient who received an implant with a transcatheter prosthesis in tricuspid position through the internal jugular vein on a dysfunctional bioprosthesis, demonstrating that it is a valid therapeutic alternative to re-operation in these patients with high surgical risk. Palabras clave: Implantación de prótesis transcatéter, Posición tricúspide, Disfunción de bioprótesis, Keywords: Transcatheter prosthesis implantation, Tricuspid position, Bioprosthesis dysfunctio