Fifty-two newborn Holstein calves with serum IgG concentrations less than 0.73 g.dL(-1) were randomly assigned to one of four treatments: no added live yeast (control), 0.5 g of live yeast added to the grain for 84 d (SC; Saccharomyces cerevisiae), 0.5 g of live yeast added to the milk for 42 d (SB; S. cerevisiae, spp. boulardii), and 0.5 g of live yeast added to the grain for 84 d and to the m...

Sixty-five chromosomal preparations from bisected bovine embryos were examined and 43 embryos (66.2%) with metaphase plates were observed; however, only 25 embryos (38.5%) were sexed. Fifteen of the bisected embryos sexed by chromosomal analysis were transferred to each of the 15 recipients, and 5 recipients became pregnant. Female calves were born on December 28, 1985, August 2, 1986 and July ...

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) ...

Thirty-eight one day old female Holstein Friesian calves were raised on artificial rearing system. We are used in completely randomized design to evaluate the effects of using milk replacer on body growth and its economic feasibility. The results revealed that the pre-weaning weight gain, pre-weaning growth rate, weaning weight, post weaning growth rate and weight at final week (week twenty) of...

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...

Probiotics are a promising alternative to improve food animal productivity and health. However, scientific evidence that specific microbes can be used to benefit animal health and performance is limited. The objective of this study was to evaluate the effects of administering a live culture of Faecalibacterium prausnitzii to newborn dairy calves on subsequent growth, health, and fecal microbiom...

OBJECTIVE Two trials were conducted in order to examine the effects of level of supplemental methionine on productive performance, dietary energetic, plasma amino acid concentration, and digestive function. METHODS Dietary treatments consisted of a steam-flaked corn-based diet containing urea as the only source of supplemental nitrogen supplemented with no supplemental amino acid (control), o...

Abstract The objective of this study was to compare 3-breed rotational crossbred calves sired by Holstein, Jersey, Montbéliarde, Normande, Viking Red, and Limousin bulls with Holstein fed a high milk allowance for growth, consumption, health scores, profitability in an automated group feeding system. Breed groups were (n = 16), crossbreds Red 24), 6), beef x dairy 45) calves. Calves randomly as...

Parasitic Gastroenteritis(PGE) Penrith diagnosed PGE in a 10-week-old Limousin-X calf which had been at pasture for three weeks before developing diarrhoea. Parasitological examination revealed 5100 trichostrongyle eggs per gram faeces and 1700 coccidial oocysts. Langford diagnosed PGE on eight occasions in six to twelve month old calves Trichostrongyle sp. worm egg counts of up to 4,550 epg we...