Effect of Enogen Feed Corn Inclusion in Conventional and Natural Finishing Cattle Diets

Increasing the extent of starch digestibility during finishing could allow producers to improve cattle efficiency. A finishing performance study was conducted to determine the effect of Enogen Feed Corn inclusion as dry-rolled corn and corn silage in comparison to a control corn hybrid within natural and conventional feeding programs for heifers and steers. Cattle in the conventional feeding program received implants and the ration included feed additives, while cattle on the natural program were not implanted and the ration did not contain feed additives. The inclusion of Enogen Feed Corn had no impact on steer or heifer finishing performance. The use of implants and feed additives in the conventional feeding program increased hot carcass weight 12.2% in steers and 7.0% in heifers. When compared to cattle in the natural program, feeding cattle in a conventional program improved feed conversion by 19.4% in steers and 13.0% in heifers

Evaluation of Vivalto\u3csup\u3e®\u3c/sup\u3e on Growth Performance and Carcass Characteristics in Growing and Finishing Beef Steers

A finishing trial conducted at the Pan-handle Research, Extension, and Education Center (PREEC) near Scottsbluff, NE evaluated the effect of Vivalto®, a B-vitamin complex, on the feeding performance and carcass characteristics of feedlot steers. The design of the study was completely randomized block design with three treatments, control without Vivalto®, 1g Vivalto®/steer/day, and 2g Vivalto®/steer/day. Cattle fed the diets that included Vivalto® feed had lower intakes during the first 56 days than cattle that received no Vivalto® in the diet. No significant differences were observed for ADG, intake, feed efficiency and carcass characteristics of the entire feeding period. No significant differences in prevalence of liver abscesses were found between treatments and prevalance of A+ abscesses was also insignificant

Comparison of Corn Silage and Earlage in Finishing Diets when fed as a Roughage on a Neutral Detergent Fiber Basis

The finishing trial was conducted to evaluate the ability of earlage to serve as a roughage source compared to corn silage when both sources were balanced on an NDF basis. Steers were fed in a randomized block design with a 2x2 treatment arrangement, with one factor being NDF source (corn silage or earlage) and the other factor being inclusion ( normal amount of roughage provided by corn silage or earlage as the only grain source and roughage source). No significant interactions were observed between roughage source and inclusion level on steer performance. Steers fed corn silage and grain had greater intakes and gains than steers fed earlage. Steers fed less NDF had more efficient feed conversion, and greater gain with heavier hot carcass weights

Effects of Corn Processing and Silage Inclusion in Feedlot Diets on Steer Performance

A feelot study compared the effects of corn silage inclusion on steer performance and carcass characteristics withing dry-rolled corn diets and steam-flaked corn diets. Treatments included four corn silage inclusions as 0, 15, 30, 45% of dry matter in both steam-flaked corn and dry-rolled corn base diets. Feeding a steam-flaked based corn diet increased average daily gain by 7.8% and improved feed conversion by 6.8% when compared to steers fed a dry-rolled corn diet. As corn silage inclusion increased, feed conversion increased linearly. When fed to the same days on feed carcass adjusted final body weight, hot carcass weight, and average daily gain responded quadratically: steers fed 15% and 30% corn silage gained faster and were heavier than steers fed 0% or 45% corn silage. Feeding steam-flaked corn improved gain and feed conversion compared to dry-rolled corn. Regardless of corn processing method, including corn silage in the diet at 15 or 30% of dry matter maximized gain but as expected, feed conversion was lowest with no roughage

Impact of Removing 20% Distillers Grain after One-third or Two-thirds of the Feeding Period on Performance of Finishing Yearling

A finishing study evaluated the effect of removing modified distillers grains plus solubles after one-third or two-thirds of the feeding period on performance and carcass characteristics of yearling steers. Treatment diets included 20% modified distillers for the entire feeding period; 20% modified distillers for two-thirds of the feeding period and then 0%; and 20% modified distillers for one-third of the feeding period, then 0%. Removing modified distillers from the diet decreased average daily gain, final body weight and dry matter intake and tended to increase feed conversion. Cattle fed 20% modified distillers throughout the entire feeding period had greatest hot carcass weight and longissimus muscle area. There was no difference in marbling score, backfat and percent of abscessed livers. Removal of modified distillers negatively impacted performance and impact depended on length of the feeding period without distillers inclusion. These data suggest running out of distillers during the feeding period will have negative consequences on gain and conversions

Análisis de dos cultivares de trigo con introducción del gen HaHB4

El objetivo de esta nota es compartir algunos de los resultados preliminares de comparar variedades de trigo con y sin la incorporación del gen HaHB4 cultivados en condiciones representativas de la región semiárida central argentina.Fil: Cardosso Perasi, Matias. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Montiel, L.. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Dillchneider Loza, Alexandra. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dalmasso, Lucas Pablo. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gonzalez, Fernanda. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Diaz Zorita, Martin. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Análisis de dos cultivares de trigo con introducción del gen HaHB4

El objetivo de esta nota es compartir algunos de los resultados preliminares de comparar variedades de trigo con y sin la incorporación del gen HaHB4 cultivados en condiciones representativas de la región semiárida central argentina.Fil: Cardosso Perasi, Matias. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Montiel, L.. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Dillchneider Loza, Alexandra. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dalmasso, Lucas Pablo. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gonzalez, Fernanda. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Diaz Zorita, Martin. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Synaptic phosphorylated a-synuclein in dementia with Lewy bodies

Dementia with Lewy bodies is characterized by the accumulation of Lewy bodies and Lewy neurites in the CNS, both of which are composed mainly of aggregated a-synuclein phosphorylated at Ser129. Although phosphorylated a-synuclein is believed to exert toxic effects at the synapse in dementia with Lewy bodies and other a-synucleinopathies, direct evidence for the precise synaptic localization has been difficult to achieve due to the lack of adequate optical microscopic resolution to study human synapses. In the present study we applied array tomography, a microscopy technique that combines ultrathin sectioning of tissue with immunofluorescence allowing precise identification of small structures, to quantitatively investigate the synaptic phosphorylated a-synuclein pathology in dementia with Lewy bodies. We performed array tomography on human brain samples from five patients with dementia with Lewy bodies, five patients with Alzheimer’s disease and five healthy control subjects to analyse the presence of phosphorylated a-synuclein immunoreactivity at the synapse and their relationship with synapse size. Main analyses were performed in blocks from cingulate cortex and confirmed in blocks from the striatum of cases with dementia with Lewy bodies. A total of 1 318 700 single pre- or post-synaptic terminals were analysed. We found that phosphorylated a-synuclein is present exclusively in dementia with Lewy bodies cases, where it can be identified in the form of Lewy bodies, Lewy neurites and small aggregates (50.16 mm3). Between 19% and 25% of phosphorylated a-synuclein deposits were found in presynaptic terminals mainly in the form of small aggregates. Synaptic terminals that co-localized with small aggregates of phosphorylated a-synuclein were significantly larger than those that did not. Finally, a gradient of phosphorylated a-synuclein aggregation in synapses (pre4pre + post4post-synaptic) was observed. These results indicate that phosphorylated a-synuclein is found at the presynaptic terminals of dementia with Lewy bodies cases mainly in the form of small phosphorylated a-synuclein aggregates that are associated with changes in synaptic morphology. Overall, our data support the notion that pathological phosphorylated a-synuclein may disrupt the structure and function of the synapse in dementia with Lewy bodies.Peer ReviewedPostprint (author's final draft

Con el ojo en el microscopio parte III

Introducción: La importancia de este proyecto radica en acercar la Universidad a la comunidad, para no solo cumplimentar con objetivos referidos a la prevención y promoción de la salud, sino que, además, acerca la ciencia a los niños y adolescentes de los sectores más carenciados, quienes no tienen definido su futuro, y piensan y ven muy lejano el ámbito universitario. En cuanto a prevención de enfermedades bucodentales no solo se abordaron temas como caries y enfermedad periodontal ( patologías más comunes), sino que además profundizamos en cómo estas patologías pueden afectar en la práctica deportiva y disminuye la Salud Integral de los individuos. Para estas actividades se implementó el uso de microscopios ópticos y digitales. Esto además de generar un entusiasmo particular por el conocimiento y la ciencia, sirvió para la detección temprana y diagnóstico oportuno y el desarrollo posterior de actividades preventivas específicas. Al llevarse a cabo con alumnos de los primeros años de la carrera de Odontología, también se busca generar un perfil del egresado socio-culturalmente comprometido con la comunidad, donde docentes y alumnos generen un ámbito distendido de trabajo que favorezca la educación no formal y el aprender haciendo.Facultad de Odontologí

Modificaciones en la microdureza superficial del esmalte con bhs sometido a la accion de una bebida saborizada

En este trabajo se busca determinar la variación que sufre la microdureza de la superficie del esmalte, con bandas de Hunter Schreger (BHS), a nivel del límite amelodentinario, antes y después de ser sumergidas en 100 ml de agua saborizada durante 12 minutos. Se utilizaron muestras de cortes en sentido vestíbulo-lingual de coronas dentales, incluidas en resina acrílica, desgastadas con papel de lija de distinta granulometría de manera decreciente, pulidas a brillo espejo, lavadas con ultrasonido y secadas con calor seco.Facultad de Odontologí