Tres regímenes de alimentación comúnmente utilizados por los criadores durante las etapas finales de producción de conejos fueron evaluados utilizando 30 conejos de la raza californiana de 30 días de edad, recién destetados. Los tres regímenes de alimentación consistieron en: concentrado comercial (TI); Concentrado comercial 70% más el 30% heno de alfalfa (TII); y el 70% afrecho de trigo más 30% de heno de alfalfa (TIII). Cinco machos y cinco hembras se asignaron aleatoriamente a cada uno de los tres regímenes durante 56 días. Ganancia diaria de peso (g), consumo de alimento (kg), el índice de conversión de alimentos y el costo de alimentación (S /.), Fueron: 28.35, 5.31, 3.33 y 3.39 para TI; 23.52, 5.37,4.15 y 4.32 para TII; y 18.52, 5.18, 5.03 y 2.75 para TIII. No se encontraron diferencias estadísticamente significativas (P<0.05) en la ganancia de peso y el índice ...

El presente experimento tuvo como objetivo evaluar el efecto del Ensilado Biológico de residuos de pescado (EP) en la dieta para crecimiento y acabado de conejos. El experimento consistió en dos ensayos utilizando conejos de la raza californiana destetados a los 30 días de edad. Se compararon cuatro dietas; tratamiento con 0% de EP (OEP), 30% de EP (30EP), 50% de EP (50EP) y 70% de EP (70EP). Se midió la ganancia diaria de peso, consumo de alimento, índice de conversión alimenticia y costo de alimentación. El diseño fue en bloques al azar con cuatro tratamientos. Cada experimento tuvo 10 unidades experimentales (cinco hembras, cinco machos). La ganancia diaria de peso (g), consumo de alimento (kg), índice de conversión alimenticia y el costo de alimentación (S/.) fueron: para OEP de 18.51, 5.18,5.01 y 2.75;30 EP de 19.68, 5.54,5.09 y 2.91;50EP de 17.64, 5.29, 5.63 y 3.40; 70EP...

The objective of this study was to determine the productive parameters of guinea pigs of the G lineage at the level of the central coast of Peru. Information on productive data was collected from 180 parturitions of 39 breeding guinea pigs and 452 weaned individuals at 16.3 days between April 2016 and May 2017 from the Huaral experimental station of the IVITA Research Centre of the National University of San Marcos. The number of births (NN), number of live births (NNV), body weight at birth (PCrN), litter weight at birth (PCN), number of weaned animals (ND), body weight at weaning (PcrD), litter weight at weaning (PCD) and mortality rate (M). The results were: NN 2.82 ± 1.14 pups per parturition (1-5 pups), NNV 2.80 ± 1.13 pups, PCrN 139.3 ± 30.9 g, PCN 389.6 ± 121.3 g, ND 2.58 ± 1.02 pups, PCrD 248.0 ± 62.3 g, PCD 640.6 ± 211.9 g and M 8.89%. Only PCrD showed significant differe...

The aim of this study was to compare the productive performance of two guinea pig meat lines (Cavia porcellus) reared in the central coast of Peru. Two genetic lines of guinea pigs were used during the growth and fattening stage: a group of 20 male guinea pig, progeny of improved guinea pigs in the Peruvian highlands, meat line G, and another group of 20 improved male guinea pigs in the Peruvian coast, meat line H. The guinea pigs were reared in individual cages from weaning (15 ± 2 days) until week 11, receiving the same diet based on Zea mays var. indurata, wheat bran and fresh water. The birth weight for guinea pigs G and H was 146.5 ± 28.2 and 119.0 ± 19.2 g, respectively, the weaning weight was 306.5 ± 49.1 and 227.0 ± 58.2, respectively, and the weight at week 11 was 965.5 ± 100.2 and 868.0 ± 91.6, respectively (p<0.05 in all cases). No significant difference was found in...

Tres regímenes de alimentación comúnmente utilizados por los criadores durante las etapas finales de producción de conejos fueron evaluados utilizando 30 conejos de la raza californiana de 30 días de edad, recién destetados. Los tres regímenes de alimentación consistieron en: concentrado comercial (TI); Concentrado comercial 70% más el 30% heno de alfalfa (TII); y el 70% afrecho de trigo más 30% de heno de alfalfa (TIII). Cinco machos y cinco hembras se asignaron aleatoriamente a cada uno de los tres regímenes durante 56 días. Ganancia diaria de peso (g), consumo de alimento (kg), el índice de conversión de alimentos y el costo de alimentación (S /.), Fueron: 28.35, 5.31, 3.33 y 3.39 para TI; 23.52, 5.37,4.15 y 4.32 para TII; y 18.52, 5.18, 5.03 y 2.75 para TIII. No se encontraron diferencias estadísticamente significativas (P<0.05) en la ganancia de peso y el índice ...

El presente experimento tuvo como objetivo evaluar el efecto del Ensilado Biológico de residuos de pescado (EP) en la dieta para crecimiento y acabado de conejos. El experimento consistió en dos ensayos utilizando conejos de la raza californiana destetados a los 30 días de edad. Se compararon cuatro dietas; tratamiento con 0% de EP (OEP), 30% de EP (30EP), 50% de EP (50EP) y 70% de EP (70EP). Se midió la ganancia diaria de peso, consumo de alimento, índice de conversión alimenticia y costo de alimentación. El diseño fue en bloques al azar con cuatro tratamientos. Cada experimento tuvo 10 unidades experimentales (cinco hembras, cinco machos). La ganancia diaria de peso (g), consumo de alimento (kg), índice de conversión alimenticia y el costo de alimentación (S/.) fueron: para OEP de 18.51, 5.18,5.01 y 2.75;30 EP de 19.68, 5.54,5.09 y 2.91;50EP de 17.64, 5.29, 5.63 y 3.40; 70EP...

El objetivo de la investigación fue determinar los parámetros productivos de cuyes G a nivel de la costa central del Perú. Se recolectó información de datos productivos de 180 partos de 39 cuyes G reproductoras con 452 crías destetadas a los 16.26 días en promedio entre abril de 2016 y mayo de 2017 en la estación experimental de Huaral del C.I. IVITA de la Universidad Nacional Mayor de San Marcos. Se evaluó el número de nacidos (NN), números de nacidos vivos (NNV), peso de las crías al nacimiento (PCrN), peso de la camada al nacimiento (PCN), número de destetados (ND), peso de las crías al destete (PcrD), peso de la camada al destete (PCD) y tasa de mortalidad (M). Los resultados fueron: NN de 2.82 ± 1.14 crías por parto (1-5 crías), NNV de 2.80 ± 1.13 crías, PCrN de 139.3 ± 30.9 g, PCN de 389.6 ± 121.3 g, ND de 2.58 ± 1.02 crías, PCrD de 248.0 ± 62.3 g, PCD de 64...

The aim of this study was to compare the productive performance of two guinea pig meat lines (Cavia porcellus) reared in the central coast of Peru. Two genetic lines of guinea pigs were used during the growth and fattening stage: a group of 20 male guinea pig, progeny of improved guinea pigs in the Peruvian highlands, meat line G, and another group of 20 improved male guinea pigs in the Peruvian coast, meat line H. The guinea pigs were reared in individual cages from weaning (15 ± 2 days) until week 11, receiving the same diet based on Zea mays var. indurata, wheat bran and fresh water. The birth weight for guinea pigs G and H was 146.5 ± 28.2 and 119.0 ± 19.2 g, respectively, the weaning weight was 306.5 ± 49.1 and 227.0 ± 58.2, respectively, and the weight at week 11 was 965.5 ± 100.2 and 868.0 ± 91.6, respectively (p<0.05 in all cases). No significant difference was found in...

The objective was to determine the effect of Salmonella Typhimurium on the chemical composition and microbiological quality of the meat of guinea pig (Cavia porcellus). 30 male guinea pigs for fattening were used that were distributed in 3 treatments with ten (10) repetitions each; T1: mixed feeding + saline solution (control), T2: mixed feeding and experimentally challenged with Salmonella Typhimurium, T3: mixed feeding + APC (antibiotic growth promoter) and experimentally challenged with Salmonella Typhimurium. T1 animals were dosed orally with saline solution, while T2 and T3 were challenged with an infective dose (2 x 106 CFU) of Salmonella Typhimurium, only once on the 11th day of the start of the experiment. Despite manifesting the disease in animals challenged with Salmonella, they did not show differences (p <0.05) in the concentration of protein and ethereal extract on a dry ...

The dry matter (DM) production of alfalfa (Medicago sativa), Caraveli variety, was evaluated per cut and per year, and its persistence over time in a prairie of the IVITA-Huaral Station of the Faculty of Veterinary Medicine, San Marcos University (Lima, Peru). The pasture was installed in the spring of 2011 in 1 ha of land in beds of 3 x 40 m, using the method of hand sowing (35 kg/ha). Irrigation was performed periodically. The cultivation was grazed with dairy cows, from the third cut when it presented 10% flowering. A total of 28 cuts were done between December 2011 and November 2014. The DM in the first, second and third year had a mean per cut of 373.3, 395.0 and 409.6 g/m2, respectively (p<0.05). The number of plants per area decreased significantly within year (p<0.05), without affecting the production of dry matter.

The dry matter (DM) production of alfalfa (Medicago sativa), Caraveli variety, was evaluated per cut and per year, and its persistence over time in a prairie of the IVITA-Huaral Station of the Faculty of Veterinary Medicine, San Marcos University (Lima, Peru). The pasture was installed in the spring of 2011 in 1 ha of land in beds of 3 x 40 m, using the method of hand sowing (35 kg/ha). Irrigation was performed periodically. The cultivation was grazed with dairy cows, from the third cut when it presented 10% flowering. A total of 28 cuts were done between December 2011 and November 2014. The DM in the first, second and third year had a mean per cut of 373.3, 395.0 and 409.6 g/m2, respectively (p<0.05). The number of plants per area decreased significantly within year (p<0.05), without affecting the production of dry matter.

The effect of Salmonella Typhimurium was determined on the productive parameters of guinea pigs (Cavia porcellus). Forty recently weaned male guinea pigs fed with a base diet were used. The animals were distributed in four treatments with 10 repetitions each were used. T1: saline solution (control); T2: saline + AGP (antibiotic growth promoter antibiotic); T3: challenge with Salmonella Typhimurium; T4: challenge with Salmonella Typhimurium + AGP. Dosing with saline or with an infective dose of Salmonella Typhimurium (2 x 106 CFU) was made on day 11 of the study. Bodyweight gain, feed consumption, feed conversion, carcass yield and economic gain were evaluated. Samples were taken from organs and meat after the slaughtering for the microbiological analysis. Animals challenged with Salmonella (T3 and T4) showed lower bodyweight gain, higher feed intake and poorer feed conversion compared to...

The effect of Salmonella Typhimurium was determined on the productive parameters of guinea pigs (Cavia porcellus). Forty recently weaned male guinea pigs fed with a base diet were used. The animals were distributed in four treatments with 10 repetitions each were used. T1: saline solution (control); T2: saline + AGP (antibiotic growth promoter antibiotic); T3: challenge with Salmonella Typhimurium; T4: challenge with Salmonella Typhimurium + AGP. Dosing with saline or with an infective dose of Salmonella Typhimurium (2 x 106 CFU) was made on day 11 of the study. Bodyweight gain, feed consumption, feed conversion, carcass yield and economic gain were evaluated. Samples were taken from organs and meat after the slaughtering for the microbiological analysis. Animals challenged with Salmonella (T3 and T4) showed lower bodyweight gain, higher feed intake and poorer feed conversion compared to...

The aim of this study was to relate morphometric measurements of the Coturnix coturnix japonica quail egg with the weight at birth in a commercial line of laying. In total, 274 birds were evaluated at one-day old, whose fertile eggs were classified into three categories according to weight: (1) 10.00-10.99, (2) 11.00-11.99, (3) 12.00-12.99 g for the variable birth weight, while the variables: transverse diameter and longitudinal diameter of the egg, and shape index were evaluated according to quartiles. In addition, the sex of the bird was evaluated. A completely randomized block model and correlations between the quantitative variables were used. A mean correlation of 0.65 was obtained between egg weight and longitudinal diameter, and low correlations between the variables longitudinal and transverse diameter (0.15). The birth weight was 7.36 ± 0.038, 7.92 ± 0.036 and 8.47 ± 0.058 g ...