The study aimed to determine the chemical composition and ruminal degradability of dry matter (DM) and crude protein (CP) of Erythrina falcata at 105, 120 and 135 days of regrowth. Leaves and petiole samples were dried and 8 g of dry grounded samples were placed in nylon bags in the rumen of three male goats during 0, 24, 48 and 72 hours. The DM and CP values were 24.4 and 21.4% at 105, 24.8 and 23.2% at 120 and, 27.2 and 24.4% at 105 days respectively. The ruminal degradability of potentially degradable insoluble fraction of DM and CP was 29.6 and 42.9% at 105, 24.3 and 31.4% at 120 and, 14.9 and 24.1% at 135 days, respectively, and the effective degradability of DM and CP was 41.3 and 41.2% at 105, 36.5 and 30.3% at 120 and, 32.3 and 30.5% at 135 days respectively. The study showed a higher protein advantage in goats at 105 days of growth of E. falcata foliage.

The aim of this study was to evaluate the effect of three regrowth ages and three levels of inclusion of pisonay (Erythrina edulis) meal on feed consumption and conversion; body weight gain, and carcass rate in guinea pig fattening (Cavia porcellus). Shade-dried leaves and petioles of harvested trees were used and mechanically processed to 2 mm particle size. In total, 120 improved male guinea pigs were used, distributed in 10 treatments (3 regrowth ages, three levels of meal inclusion and a control group with alfalfa meal) for 56 days. The total and daily weight gain, in addition to the feed conversion had a similar response between treatments; feed consumption was lower with the 8M30% treatment (54.0 g/day) with respect to CA20% (59.3 g/day) (p<0.05) and the carcass yield was higher in 4M20% (73.5%) compared to the control diet (71.1%) (p<0.05). Feed consumption (60.3 g/day) as f...

El estudio tuvo como objetivo determinar la composición química y la degradabilidad ruminal de la materia seca (MS) y proteína cruda (PC) del pisonay (Erythrina falcata) a los 105, 120 y 135 días de rebrote. Se tomaron muestras de hojas y peciolo, se secaron y se colocaron 8 g de muestra molida por bolsa de nylon en el rumen de tres chivatos machos adultos por 0, 24, 48 y 72 horas. Los valores de MS y PC fueron 24.4 y 21.4% a los 105, 24.8 y 23.2% a los 120 y, 27.2 y 24.4% a los 135 días, respectivamente. La degradabilidad ruminal de la fracción insoluble potencialmente degradable de MS y PC fue 29.6 y 42.9% a los 105, 24.3 y 31.4% a los 120 y, 14.9 y 24.1% a los 135 días, respectivamente, y la degradabilidad efectiva de MS y PC fue 41.3 y 41.2% a los 105, 36.5 y 30.3% a los 120 y, 32.3 y 30.5% a los 135 días, respectivamente. El estudio demuestra que el follaje E. falcata a los ...

The experiment was carried out in the district of Tamburco, province of Abancay, Peru, between January and April 2017 and aimed to determine serum levels of creatinine, urea and blood urea nitrogen (BUN) in guinea pigs fed with pisonay (Erythrina sp). Leaves and petioles of pisonay with four months of regrowth and fresh alfalfa (Medicago sativa) with 28 days of regrowth were used in the diet of 18 improved male guinea pigs. The animals were distributed in three treatments: A100: 100% alfalfa (80 g), A50P50: 50% alfalfa (40 g) plus 50% pisonay (40 g) and P100: 100% pisonay (80 g). The feed was provided twice a day. Serum creatinine levels in guinea pigs fed A50P50 and P100 were significantly higher compared to those that consumed A100 (p<0.05). The BUN levels were only significantly different between A100 and P100 (p<0.05), while there were no significant differences between treatme...

The experiment was carried out in the district of Tamburco, province of Abancay, Peru, between January and April 2017 and aimed to determine serum levels of creatinine, urea and blood urea nitrogen (BUN) in guinea pigs fed with pisonay (Erythrina sp). Leaves and petioles of pisonay with four months of regrowth and fresh alfalfa (Medicago sativa) with 28 days of regrowth were used in the diet of 18 improved male guinea pigs. The animals were distributed in three treatments: A100: 100% alfalfa (80 g), A50P50: 50% alfalfa (40 g) plus 50% pisonay (40 g) and P100: 100% pisonay (80 g). The feed was provided twice a day. Serum creatinine levels in guinea pigs fed A50P50 and P100 were significantly higher compared to those that consumed A100 (p<0.05). The BUN levels were only significantly different between A100 and P100 (p<0.05), while there were no significant differences between treatme...

The aim of this study was to evaluate the hematological constants of the red and white series in suri (Rhea pennata) in captivity in the Peruvian high plateau, considering, in addition, the sex and age variables. Sampling was done on 28 individuals from the Lupaca Rescue Center, El Collao province, Puno region, Peru, at 4530 m. The birds were 14 females and 14 males, corresponding to seven juveniles (12-23 months) and seven adults (more than 24 months) in each case. The animals were apparently healthy. The blood samples were obtained after fasting in the morning by puncture in the axillary vein. The count of erythrocytes and leukocytes was determined using the Neubauer hemocytometer, the Natt-Herrick solution and blood smear stained with the Wrigth stain, hematocrit by microhematocrit, and hemoglobin by spectrophotometry using the cyanometahemoglobin method. The hematological values betw...

The aim of this study was to evaluate the hematological constants of the red and white series in suri (Rhea pennata) in captivity in the Peruvian high plateau, considering, in addition, the sex and age variables. Sampling was done on 28 individuals from the Lupaca Rescue Center, El Collao province, Puno region, Peru, at 4530 m. The birds were 14 females and 14 males, corresponding to seven juveniles (12-23 months) and seven adults (more than 24 months) in each case. The animals were apparently healthy. The blood samples were obtained after fasting in the morning by puncture in the axillary vein. The count of erythrocytes and leukocytes was determined using the Neubauer hemocytometer, the Natt-Herrick solution and blood smear stained with the Wrigth stain, hematocrit by microhematocrit, and hemoglobin by spectrophotometry using the cyanometahemoglobin method. The hematological values betw...

The experiment was carried out in Tamburco, province of Abancay, Peru with the objective of determining the effect of diets based on pisonay (Erythrina sp) on the concentration of tannins and total alkaloids, the serum concentration of the aminotransferases, the lesions in the liver and the liver/liveweight ratio of the guinea pigs. Leaves and petioles of pisonay were used with four months of regrowth and fresh alfalfa (Medicago sativa) with 28 days of regrowth in the diet of 24 improved male guinea pigs, distributed in three treatments: diet A100: 100% alfalfa (80 g), diet A50P50: 50% alfalfa (40 g) plus 50% pisonay (40 g) and diet P100: 100% pisonay (80 g). The feeds were supplied twice a day. Serum levels and liver/liveweight ratio were analysed with complete random design, the effect of diets on guinea pig liver lesions was analysed with Fisher's exact test. The concentration of tann...

The experiment was carried out in Tamburco, province of Abancay, Peru with the objective of determining the effect of diets based on pisonay (Erythrina sp) on the concentration of tannins and total alkaloids, the serum concentration of the aminotransferases, the lesions in the liver and the liver/liveweight ratio of the guinea pigs. Leaves and petioles of pisonay were used with four months of regrowth and fresh alfalfa (Medicago sativa) with 28 days of regrowth in the diet of 24 improved male guinea pigs, distributed in three treatments: diet A100: 100% alfalfa (80 g), diet A50P50: 50% alfalfa (40 g) plus 50% pisonay (40 g) and diet P100: 100% pisonay (80 g). The feeds were supplied twice a day. Serum levels and liver/liveweight ratio were analysed with complete random design, the effect of diets on guinea pig liver lesions was analysed with Fisher's exact test. The concentration of tann...