The study was carried out in the "Centro de Producción de Genética Superior (CENPROGEN-SUP)" in Valle de Condebamba district, Cajamarca region, Peru, with the objective of selecting male guinea pigs for breeding based on their selection index. A total of 80 male guinea pigs of the Cajamarca ecotype of the Facultad de Ingeniería en Ciencias Pecuarias (pure and crossbred FICP) of the National University of Cajamarca, as well from the Valley of Mangallana and from the Valley of Cholocal. The guinea pigs were fed alfalfa, concentrate and water ad libitum for 56 days. The daily weight gain (IPD) and total weight gain (IPT), final weight (PF), body length (LC) and feed conversion (CA) were evaluated. The crossed FICP had significantly better values for IPD, IPT, PF and LC (17.6±1.8 g, 979±98 g, 1328±134 g and 36.6 ± 1.3 cm, respectively) (p<0.05).) On the other hand, there were no di...

El estudio se desarrolló en el “Centro de Producción de Genética Superior (CENPROGEN-SUP)” en el distrito de Valle de Condebamba, región Cajamarca, Perú, con el objetivo de seleccionar cuyes machos para reproducción en función a su índice de selección. Fueron utilizados 80 cuyes machos del ecotipo Cajamarca de la Facultad de Ingeniería en Ciencias Pecuarias (FICP puros y cruzados) de la Universidad Nacional de Cajamarca, así como del Valle de Mangallana y del Valle de Cholocal. Los cuyes fueron alimentados con alfalfa, concentrado y agua a voluntad durante 56 días. Se evaluó el incremento de peso diario (IPD) y total (IPT), peso final (PF), longitud corporal (LC) y conversión alimenticia (CA). Los FICP cruzados tuvieron valores significativamente mejores para IPD, IPT, PF y LC (17.6±1.8 g, 979±98 g, 1328±134 g y 36.6±1.3 cm, respectivamente) (p<0.05). Por otro la...

The effect of four dietary levels of lupine seed meal (Lupinus mutabilis, HCH) on growth performance, intestinal tract development and haematological values ​​were evaluated in male turkeys of the one-day BUT line. The turkeys were distributed in four groups with different diets for 56 days: L0 (control) diet without HCH, and L30, L60 and L90 diets containing 30, 60 and 90 g/kg of HCH, respectively. Increased levels of HCH inclusion in the diet, added at the expense of soybean meal, contributed to an increase in fibre concentrations in the experimental diets. Daily feed intake decreased in HCH treatments and feed conversion and bodyweight gain of birds were affected in treatments of 60 and 90 g / kg of HCH inclusion (p<0.05). High dietary levels of HCH led to an increase (p<0.01) of the digesta in the ileum and in the cecum, an increase in the relative tissue mass (p<0.01), ...

The effect of four dietary levels of lupine seed meal (Lupinus mutabilis, HCH) on growth performance, intestinal tract development and haematological values ​​were evaluated in male turkeys of the one-day BUT line. The turkeys were distributed in four groups with different diets for 56 days: L0 (control) diet without HCH, and L30, L60 and L90 diets containing 30, 60 and 90 g/kg of HCH, respectively. Increased levels of HCH inclusion in the diet, added at the expense of soybean meal, contributed to an increase in fibre concentrations in the experimental diets. Daily feed intake decreased in HCH treatments and feed conversion and bodyweight gain of birds were affected in treatments of 60 and 90 g / kg of HCH inclusion (p<0.05). High dietary levels of HCH led to an increase (p<0.01) of the digesta in the ileum and in the cecum, an increase in the relative tissue mass (p<0.01), ...

The aim of this study was to evaluate the productive and reproductive performance of the Creole egg hen of green shell eggs of the province of Chota, Cajamarca (Peru). Five hundred eggs were collected and artificially incubated to determine their hatchability. In the resulting chicks, the growth in confinement was evaluated for 16 weeks. Then, the birds were mated (5 females and 1 male) and the production and weight of eggs of six biotypes and the hatchability were determined under natural incubation. Significant differences (p<0.05) were found in the growth and size of the six biotypes evaluated. The birds initiated the oviposition between 17 and 19 weeks of age, with periods of posture of seven weeks interrupted by a broody period that could last up to three weeks. The hatchability was influenced by the conditions and types of incubation.

The aim of this study was to evaluate the productive and reproductive performance of the Creole egg hen of green shell eggs of the province of Chota, Cajamarca (Peru). Five hundred eggs were collected and artificially incubated to determine their hatchability. In the resulting chicks, the growth in confinement was evaluated for 16 weeks. Then, the birds were mated (5 females and 1 male) and the production and weight of eggs of six biotypes and the hatchability were determined under natural incubation. Significant differences (p<0.05) were found in the growth and size of the six biotypes evaluated. The birds initiated the oviposition between 17 and 19 weeks of age, with periods of posture of seven weeks interrupted by a broody period that could last up to three weeks. The hatchability was influenced by the conditions and types of incubation.

Se evaluó la inclusión de una premezcla alimenticia de ingredientes no convencionales (PM-INC) en base a lupino, vicia, linaza y trigo como parte del lacto-reemplazante (LR). Se trabajó con 24 terneros machos Holstein cruzados recién nacidos, distribuidos en tres tratamientos: T1: leche entera (LE), T2 (LR-LDMC): LR con 80% leche descremada (LD) + 20% manteca de cerdo, T3 (LR-LDINC): LR con 75% LD + 25% PM-INC. La LE y LR fueron suministrados dese el inicio del experimento hasta el destete (ocho semanas), el alimento iniciador se suministró desde la segunda semana y de heno de alfalfa desde la sexta semana. No se observaron diferencias significativas entre tratamientos para consumo de alimento, peso vivo, ganancias de peso, ni altura a la cruz. Sin embargo, se encontró un menor costo de ternero destetado por concepto de alimentación en el tratamiento LR-LDINC equivalente a S/.&nbs...

The inclusion of a pre-mix of unconventional ingredients (PM-INC) with lupine, vicia, flaxseed and wheat as part of milk replacer (LR) was evaluated. Twenty-four newborn Holstein male calves, distributed in three treatments were used: T1: whole milk (LE), T2 (LR-LDMC): LR with 80% skim milk (LD) + 20% lard, T3 (LR-LDINC): LR with 75% LD + 25% PM-INC. The LE and LR were supplied from birth to weaning (eight weeks), the starter feed was supplied from the second week and alfalfa hay from the sixth week. No significant differences were observed between treatments for feed consumption, ratio feed/gain, body weight, weight gain, or size. However, a lower cost of weaning calf was found for feeding in the LR-LDINC treatment equivalent to S/. 13.37 less with respect to the treatment LE and S/. 13.51 less with respect to the LR-LDMC treatment. It is concluded that, the Holstein male calf...