Diferentes niveles de diatomeas en la nutrición y salud de terneras lecheras holstein mestizas

Abstract

In the Livestock "Yuquipa", Agricultural Production of the Salesian Don Bosco Mission Farm, Morona, Morona Santiago Province, different levels of diatoms (2, 4 and 6%), and a control treatment was assessed with 5 replicates (T,U,E, of 1 calf), giving a total of 20 calves, distributed under a completely randomized design for 90 days. The results were processed using the SPSS statistical program (2008), and Excel (2010). Best results being obtained with T3 (6% diatoms), treatment in the final weight of 178 kg; A weight gain of 41,60 kg; and FCR 10,03. In this treatment nutrient intake were efficient as: Dry matter in take of 645 Kg / day, 817,76 g / day, of crude protein; 8,19 Mcal ME / day 16,14 g / day of calcium and 11,19 g / day of phosphorus. The effect of diatoms levels on zoometric measures evaluated reported a chest circumference of 126,80 cm, body length of 103,40 cm; 115,80 cm of elevation; Rump length of 33,60 cm; Rump width of 29,80 cm and a hoof perimeter of 15,20 cm. The bacterial load was reduced from 240,000 to 160,000 cfu/g of bacteria Escherichia coli, when using the T3 and zero parasite load. The benefit/cost generated was $ 1,11 that is a return of 11% for these reasons is recommended as an alternative additive this diatoms level because it improves the production parameters of the gastrointestinal state and health of crossbred Holstein heifers.