Abstract Previous research has shown surplus dairy calves arrive at ‘formula-fed’ veal operations in North America sub-optimal condition; however, little is known about the condition of ‘bob’ on arrival abattoirs. The objectives this study were to assess bob an abattoir Ohio and determine risk factors for poor health outcomes. On arrival, 35 each 12 cohorts (n = 420 calves) assessed using a sta...

AIM The aim was to determine hemato-biochemical alterations and to determine the better treatment of theileriosis in naturally infected calves. MATERIALS AND METHODS A total of 74 Holstein crossbred calves below 6 months of age, of either sex were included for present investigation in Bikaner. Based on the clinical examinations and laboratory results, 20 calves included for hemato-biochemical...

in order to study the effect of dietary physical form on the fattening performance of holstein male calves, an experiment was conducted in animal science research institute of iran in 2011. the experimental diets were formulated and prepared with two physical forms including total mixed ration (tmr) and densified complete feed block (dcfb). in a completely randomized block design, with two trea...

this experiment was conducted to evaluate the effect of barley green fodder produced by hydroponics system on the performance of feedlot calves. in a completely block randomized experiment, 24 cross bred (holstein×local) male calves were assigned randomly to one of the two treatments (diets) that were either control (grain barley) or hydroponic barley green fodder (bgf) that was included to...

The main objective of this study was to describe Holstein neonatal growth and development as influenced by dietary zinc supplementation and the CD18 genotype, both of which may affect immune competence. Holstein calves (n = 421), after being fed colostrum, were brought to a calf facility, randomly assigned to one of four zinc supplementation groups (control at 40 mg Zn/kg DM or the control diet...

Electrocardiograms were recorded from 89 clinically healthy Holstein cattle divided into 10 age groups, comprising newborn calves (18 to 72 hours), 15 days, 1, 3, 6 and 9 months and 1, 3, 5, and 7 years of age. The electrocardiograms were recorded on a bipolar base apex lead, using limb lead I. Duration and amplitude of the P, QRS complexes, T waves and the PR, RR, QT and ST intervals were meas...