BACKGROUND Trans fatty acids are produced either by industrial hydrogenation or by biohydrogenation in the rumens of cows and sheep. Industrial trans fatty acids lower HDL cholesterol, raise LDL cholesterol, and increase the risk of coronary heart disease. The effects of conjugated linoleic acid and trans fatty acids from ruminant animals are less clear. We reviewed the literature, estimated th...

since the use of antibiotics in animal feeds has been banned, researches on alternative natural products that modulate ruminal fermentation have been intensified. natural compounds such as plant extracts have been considered to be replaced antibiotics as safe and sustainable alternatives. plant extracts especially essential oils and saponins have strong antimicrobial, antiparasitic, antiprotozo...

background :    salmonellosis is an infectious and a food-borne disease of humans and animals. the initial source of the infection is the intestinal tracts of birds and other animals. apparently healthy animals can become subclinical carriers and persistently shed salmonella in their feces which can act as a reservoir for the pathogen. the aim of this study is to detect the carriers of salmonel...

The diagnosis of ruminant theileriosis in Turkey is based on microscopical examination of thin blood and lymph smears, serology, traditional staining methods of the salivary glands of ticks and molecular techniques. Although some investigators reported that T. mutans was found in cattle with microscopic examination (7.4%-36.7%) and experimental study, they did not detect this parasite using mol...

In this issue of the Journal, 2 groups of investigators report carefully conducted controlled feeding studies in healthy volunteers that compared the effects on blood lipids of trans fatty acids (TFA) from industrial (partially hydrogenated vegetable oil) and from dairy (ruminant or “natural”) sources. Chardigny et al (1) compared industrially derived and ruminant-derived TFA at 5% of energy. M...

Beauchemin and Rode (1996) recently reviewed the use of enzymes in ruminant diets, however, enzymes in the form of crude whole fungal cell preparations have been used to enhance ruminant production for many years. This paper aims to investigate the similarities between the emerging feed enzymes and fungal feed additives, and to use this information to speculate on potential modes of action of d...

There is increasing evidence to indicate that nutrition is an important factor involved in the onset and development of several chronic human diseases including cancer, cardiovascular disease (CVD), type II diabetes and obesity. Clinical studies implicate excessive consumption of medium-chain saturated fatty acids (SFA) and trans-fatty acids (TFA) as risk factors for CVD, and in the aetiology o...