Transhumant production system (TPS) is a type of extensive livestock production practiced by transhumant pastoralists in which indigenous livestock breeds are mainly fed a pasture-based diet. The hypothesis tested in this work was whether differences existed between fat samples from the different species in respect to ratios of n-6/n-3, and polyunsaturated fatty acids to saturated fatty acids. ...

Bovine herpesvirus type 5 (BHV-5) is an alphaherpesvirus associated with meningoencephalitis, a disease highly prevalent in South America. In this study, we investigated the distribution of BHV-5 DNA in the brains of latently, experimentally infected calves by using a PCR for the glycoprotein B gene. Twelve calves inoculated intranasally with a Brazilian BHV-5 isolate were divided into two grou...

keyvan karkoodi*, saeed khalajzadeh department of animal science, saveh branch, islamic azad university, saveh, iran   *corresponding author's e-mail: [email protected]   received: 12 august 2013 accepted: 21 november 2013   abstract   thirty neonatal male holstein calves fed by starter diets containing ground wheat (gw) or dry-rolled wheat (drw) to 12 weeks of age. skeletal growth ...

OBJECTIVE To investigate the infection of calves with Mycobacterium bovis through oral exposure and transmission of M. bovis from experimentally infected white-tailed deer to uninfected cattle through indirect contact. ANIMALS 24 11-month-old, white-tailed deer and 28 6-month-old, crossbred calves. PROCEDURE In the oral exposure experiment, doses of 4.3 x 10(6) CFUs (high dose) or 5 x 10(3)...

The purpose of this study was to evaluate the changes in the serum concentrations of haptoglobin (Hp), serum amyloid A (SAA) and IgG, IgA in calves with diarrhea caused by rotavirus, coronavirus, Escherichia coli F5 and Eimeria species. The experiment was carried out on 40 diarrhoeic and 10 non-diarrhoeic calves (group C). A total of 13 calves were infected with rotavirus or coronavirus (group ...

Received: Revised: Accepted: June 07, 2014 July 29, 2014 August 24, 2014 We investigated the dynamics and duration of antibody titer against Pasteurella multocida in Japanese Black calves. Twenty unvaccinated calves from two Japanese Black breeding farms in Japan, were studied. Blood samples were obtained from all calves at 1, 4, 8, 12, 16 and 20 weeks after birth, and also obtained from their ...

BACKGROUND: A limited number of studies have investigated the inclusion of amino acids in calf starter. OBJECTIVES: This study was aimed to evaluate different levels of crude protein in starter and supplement- ing some protected amino acids on efficiency, health status and blood metabolites of dairy calves and to com- pare it with unprotected amino acids. <st...

in this study, the effect of chamomile extract on the ability of neonatal calves to absorb immunoglobulin g (igg) was evaluated. an ethanolic extract of chamomile was obtained with the concentration of 111 mg/ml. calves were randomly divided into four groups, each receiving one of four chamomile treatments; 1: low dose (lc; 5.5 mg/kg body weight; 2: moderate dose (mc; 11 mg/kg); 3: high dose (h...

The influence of a purified Ig preparation on morbidity, mortality, and performance of purchased calves was evaluated. Calves (n = 187) were 3 to 8 d of age and were infused i.v. (blocks 1 and 2) or s.c. (blocks 3 and 4) with a purified Ig preparation derived from bovine blood that was obtained from an abattoir (n = 88) or were infused with 0.9% NaCl saline (n = 99). The Ig solution was purifie...