Examinando por Materia "Proteína"

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Estudio comparativo del híbrido pasto mulato y dos especies de gramíneas forrajeras sobre la calidad nutritiva y rendimiento de biomasa en la región Ucayali
(Universidad Nacional Micaela Bastidas de Apurímac (UNAMBA), 2014-10-24) Caruzo Vara, Ever
En Pucallpa, región Ucayali, se desarrolló el experimento "Estudio comparativo del pasto mulato híbrido y dos especies de gramíneas forrajeras, sobre la calidad nutritiva y rendimiento de biomasa, evaluando el rendimiento de biomasa seca y calidad nutritiva de las gramíneas forrajeras tropicales. En los resultados de biomasa seca a 120 días de brote nuevamente la híbrida gramínea mulato con 13.795 kg/ha fue significativamente superior a Brachiaria decumbens y Brachiaria brizantha. En biomasa seca a 2 meses de brote, nuevamente el pasto mulato híbrido con 15.293 kg/ha (tiempo lluvioso) y 5520 kg/ha (tiempo seco), fueron significativamente superiores a Brachiaria decumbens y Brachiaria brizantha. En proteína bruta con promedio de 7%, no se presentaron diferencias significativas entre las gramíneas en estudio.
First characterization of somatic proteins of trematodes of the family Paramphistomidae by SDS PAGE isolated from cattle from the Cajamarca region, Peru
(Eldaghayes Publisher, 2026-01-31) Fernandez Mendoza, Charito Jennyfer; Tayca Saldaña, Antony; Cueva Rodríguez, Medali; Aliaga Tambo, Hector Fernando; Rodríguez Ulloa, Claudia Carolina; Alvarez García, Wuesley Yuesmein; Quilcate Pairazamán , Carlos Enrique; Cabrera González, Marco Antonio
ABSTRACT Background: Paramphistomosis is a gastrointestinal parasitic disease of worldwide distribution, with higher prevalence in tropical and subtropical regions. Its biological cycle has a chronic phase caused by adult trematodes that adhere to the rumen mucosa and a highly pathogenic phase caused by immature trematodes, which induce acute parasitic gastroenteritis. Studies related to the parasite are very scarce in the region of Cajamarca, Peru, regarding the characterisation of antigenic proteins, considering that this parasitosis is endemic and has emerging characteristics. Aim: The study aimed to characterise somatic proteins of adult forms of Paramphistomidae in cattle by electrophoresis, Sodium dodecyl sulphate-polyacrylamide gel electrophoresis. Methods: For this purpose, 630 adult parasites were collected from the rumen and reticulum of cattle from the processing centre of Cajamarca, Peru. Results: The number of protein bands in the paramphistomid somatic crude extract was variable depending on the concentration of the protein analyzed. Thus, concentration 2 showed the highest number of protein bands (21 bands) with molecular weights (MW) within a variable range of 15 kDa–119 kDa. The results of ITS-2 gene sequencing, after alignment in NCBI’s Basic Local Alignment Search Tool of the obtained consensus sequences, show 100% similarity to sequences belonging to the species Calicophoron microbothrioides. Conclusion: Twenty-one protein bands from the somatic extract were characterized. The MWs of these bands ranged from 15 kDa to 119 kDa. This study may help carry out alternative control programmes, such as developing vaccines, choice of appropriate drugs due to the therapeutic failures expressed by this parasite. In addition, molecular identification based on ITS-2 gene sequencing revealed a 100% sequence similarity with Calicophoron microbothrioides.
Nueva variedad de Tarwi INIA 445 - Masacanchino
(Instituto Nacional de Innovación Agraria, 2021) Perez Avila, Angel Agustin
La presente publicación pone a disposición una nueva variedad de tarwi que posee buenas características de rendimiento, además elevado porcentaje de proteína, y bajo niveles de alcaloides. Además es moderadamente tolerante a Roya amarilla, Antracnosis y Fusarium