The serum proteinograms of 10 female Holstein calves fed milk either through conventional (COV) or step-down (STP) milk feeding methods at different ages were evaluated. Calves fed using the COV method were fed colostrum during the first 24 hours that they stayed with their respective mothers and received transition milk for another 2 days and later, and then milk at four liters/day for 59 days...

Effect of vitamin C (VC) on biochemical, hematological and cortisol profile of growing Holstein calves during summer was investigated. Eighteen calves between 14 and 16 weeks of age were divided equally into two groups. One group received a diet supplemented with VC (20 g/d) for 60 days, while other non-supplemented diet fed group served as a control (CON). The temperature humidity index (THI) ...

different medicinal plants have been used in animal and poultry nutrition in last decade. it seems that there are some potential to these medicinal plants to replace with common antibiotics. licorice root (glycyrrhiza glabra) is a medicinal plant that extensively was used in different studies. in the present study, the effect of dietary addition of licorice root on performance and blood energy ...

The in situ expression of intercellular adhesion molecule-1 (ICAM-1) mRNA in normal and pneumonic lung tissues of Holstein calves with bovine leukocyte adhesion deficiency (BLAD) was compared with that of age-matched non-BLAD Holstein calves by in situ hybridization. Twenty-four Holstein calves (both BLAD and non-BLAD) were randomly assigned to one of two experimental groups and inoculated intr...

probiotics are used to control or maintain a constant state of intestinal bacteria. when the bacterial populations are altered by stress or antibiotic therapy, animal health and performance may decline. this experiment was designed to study the effects of feeding a probiotic (saccharomyces cerevisiae cncm i-1079) on growth and health of neonatal holstein calves. forty –five neonatal holstein ca...

The objective of this study was to compare the effects of rearing calves outdoors, with and without all-weather calf jackets, with calves reared indoors on calf immunity and animal performance. In February 1999, male Holstein calves (mean (s.e.) weight 55 (1.90) kg) were randomly assigned to one of three treatments (n=30 per treatment): 1) outdoors with jacket, (J; mean age 19 (s.e. 2.0) days);...