Análise da utilização do resíduo proveniente da pré-limpeza do arroz ofertado moído e inteiro na alimentação de vacas lactantes

Abstract

This study aimed to evaluate the influence of the consumption of waste from the precleaning of the rice offered to the animals in two physical forms, whole and ground, to evaluate the influence of the periods analyzed and the influence of animal categories used, thus verifying its possible interference in the milk production of lactating Holstein cows. The experiment was conducted on a farm in the area belonging COTRIJUI, located in the municipality of Dom Pedrito- RS, between the months of may and june, a total of four periods of five days each. Were selected 16 Holstein breed animals to participate in the experiment, based on milk production and lactation order divided in two treatments: 1) whole-RCB (W-RCB) - 4.22 kg of commercial concentrate and 2 kg of W-RCB and; 2) ground RCB (GRCB) - 4.22 kg of commercial concentrate and 2 kg of GRCB. The animal category was highly significant influence (P<0.05) on total milk production. But the average consumer concentrate only difference between the cows in the second calving and cows in the third calving. Demonstrating that the cows in the first calving despite having ingested the same amount of concentrate that the cows in the second and third calving had a lower creates efficiency for milk production. There were differences (P<0.05) of the total consumption of concentrate between treatments. The GRCB had a lower intake (P<0.05), however showed higher milk production (21.37 L) than WRCB. Therefore we recommend the use of GRCB for feeding dairy cows.