Publications by authors named "E Arnhold"

This study aimed to assess the effect of CNCM I-1079 supplementation during the initial feeding period on the performance of Nellore bulls in a feedlot system. One hundred ninety-eight Nellore bulls were used in a completely randomized block design, with blocking based on weight within each treatment group: light (331.4 kg; 4 pens), medium (349.

View Article and Find Full Text PDF

Foot disorders are responsible for up to 5% of confinement losses. Identifying the cause of lameness and applying the correct treatment are crucial measures. The possibility of determining the probable origins of digital lesions, their extension, and assistance in cases in which it was not possible to reach a definitive clinical diagnosis demonstrates that the radiographic evaluation provides information of great importance on cattle digits.

View Article and Find Full Text PDF
Article Synopsis
  • Fluralaner, a newly introduced treatment, was tested on taurine cattle in Brazil to control Rhipicephalus microplus ticks, which are resistant to multiple acaricides.
  • The study involved 30 infested cattle divided into two groups: one treated with fluralaner and the other as a control group receiving palliative treatment.
  • Results showed that fluralaner was highly effective (99.5% efficacy by Day 3 and 100% by Day 7) in reducing tick loads, and treated cattle gained significantly more weight compared to the control group, with no cases of myiasis observed in the treated group.
View Article and Find Full Text PDF

The objective of this study was to verify the flight radius and the influence of the climatic season and period of the day on the external activity of Melipona rufiventris bees. The forager bees were released at different distances to evaluate the flight radius. The following were considered for external activities in the four different seasons of the year (Winter, Autumn, Spring, Summer): the entry with no apparent load was considered as nectar/water, entry with defined and opaque mass in the corbicula was considered as pollen, the entry with undefined and shiny mass in the corbicula was considered as resin/clay or bee exit no load and removal of debris, mass trapped by the jaws.

View Article and Find Full Text PDF

The objective of this study was to determine the correlation between ingestive behavior, apparent digestibility, and residual feed intake (RFI) of finishing Nellore bulls fed a high concentrate diet. One hundred and twenty Nellore bulls, housed in individual pens, were evaluated in individual performance tests. The animals were fed a high concentrate diet (23:77 roughage/concentrate ratio).

View Article and Find Full Text PDF