Studies were conducted to evaluate effects of weaning and subsequent heifer development treatments within two herds located in the Northern Great Plains, USA. Heifer calves from predominantly Angus Hereford dams were stratified within dam age and calving date (Fort Keogh Livestock and Range Research Laboratory (LARRL), Miles City, MT, USA; n1⁄4328) and randomly assigned within study and strata ...

F beef cattle management practices are more cost effective or have a higher return on investment than properly used growth promoting implants. Growth promoting implants are pellets that are implanted under the skin of the ear of growing calves. These pellets release extremely low concentrations of various hormones, which improve average daily gain 7 to 17 percent and feed efficiency 4 to 12 per...

Two experiments were conducted to determine the effects of Cu deficiency with or without high dietary Mo or Fe on the specific immunity of calves. In Exp. 1, calves from 38 bred heifers, fed corn silage-based experimental diets from the last third of gestation until the calves were weaned, were used. Dietary treatments were control (no supplemental Fe, Mo, or Cu), 600 mg of supplemental Fe/kg o...

The objective of this research was to determine the effect different starters consisted dried whey and soy proteins with low anti-nutritive factors (ANFs) + amino acids (lysine methionine) on body measurements, biochemical parameters, feed consumption early-weaned female Holstein calves. Based starter, calves were divided into four groups: i) control (control starter), ii) E1 (starter added dry...

The present study was conducted to evaluate the effects of physical form of starter and alfalfa hay (AH) provision on growth performance, ruminal fermentation, and blood metabolites of Holstein dairy calves. Forty-four 3d-old Holstein dairy calves with a mean starting BW of 39.9 ± 1.1 kg were used in a 2 × 2 factorial arrangement. The factors were dietary forage level (0 or 150 g kg-1</sup...

BACKGROUND Vaccination of young calves against Bovine viral diarrhea virus (BVDV) is desirable in dairy and beef operations to reduce clinical disease and prevent spread of the virus among cattle. Although protection from clinical disease by multivalent, modified-live virus (MLV) vaccines has been demonstrated, the ability of MLV vaccines to prevent viremia and viral shedding in young calves po...

Florião M.M., Lopes B. do B., Berto B.P. & Lopes C.W.G. Acute coccidiosis in an organic dairy farm in tropical region, Brazil. [Coccidiose aguda em uma fazenda de gado leiteiro orgânico na região tropical, Brasil.] Revista Brasileira de Medicina Veterinária, 37(Supl.1):6-12, 2015. Curso de Pós-Graduação em Ciência, Tecnologia e Inovação em Agropecuária, Universidade Federal Rural do Rio de Jane...