El desarrollo del campo experimental, que se realizó en la Estación Experimental Santa Ana, ubicada en el Anexo de Sano Grande, distrito de La Posada, provincia de Huancayo, Región Junín, a una altitud de 3.290 msnm., siendo el objetivo evaluar y caracterizar variedades de alfalfa que sean adaptables en siembras en época seca. Las Leguminosas son variedades de alfalfa con 9 tratamientos y 3 repeticiones; se utilizó el diseño de bloques completos al azar. Los tratamientos fueron: T1 W625HQ, T2 WL440, T3 Beacon, T4 Cuf 101, T5 Californian Super, T6 Alpha Extra, T7 Victoria, T8 Aragón y T9 Alta cordillera. Establecimiento duro de 126 a 128 días. Como resultado se tiene en las variedades de Alfalfa, Super California obtiene 9 t/ha de forraje verde y 35% de materia seca, seguido de la Alfalfa 8 Cuf 101 alcanza t/ha de forraje verde y 39% de materia seca, y Alfa Extra con 7 t/ha de fo...

The Junín sheep is a rustic Peruvian breed adapted to the high Andean areas of the central highlands. It began with a population base of Creole sheep crossed with Corriedale sheep and with subsequent crosses using males from the North American west (Columbia, Panama and Warhill) as well as Corriedale rams from the USA and New Zealand. The livestock company SAIS Tupac Amaru Ltda. N.° 1 is the main depository of a population of around 100 000 animals. The present study aimed to evaluate the genetic diversity and population structure of this breed, as well as its relationship with other breeds. In total, 20 samples of sheep from the Junín herd were analyzed and high-density microarrays of single nucleotide polymorphic markers (SNPs) containing more than 500 000 SNP-type markers were used. The expected heterozygosity (HE) value was 0.429 and the inbreeding coefficient was 0.02. Regarding ...

The aim of this study was to evaluate the variation of the chemical composition and the performance of the oats-vetch, wheat-vetch and barley-vetch associations in various proportions of sowing in the form of hydroponic crops. The study was carried out in the city of Huancavelica, Peru, at 3690 meters above sea level. In total, 90 trays of 704 cm2 were used, with a density of 2.5 kg of seed/m2. Associations of oats/vetch (O/V), barley/ vetch (B/V) and wheat/vetch (W/V) with six proportions of grass/legume were used: 100/0, 80/20, 60/40, 40/60, 20/80 and 0/100. The fresh biomass production (FBP) and the chemical composition of the percentage fractions of dry matter (DM%), organic matter (OM%), neutral detergent fibre (NDF%), ethereal extract (EE%), crude protein (CP%) and total minerals (TM%) were determined. A completely randomized experimental design was used, with a factorial arrangeme...