THE ENDOGENOUS URINARY AND METABOLIC FECAL NITROGEN EXCRETIONS OF NEWBORN DAIRY CALVES
نویسندگان
چکیده
منابع مشابه
Isolation, Molecular Identification, and Antibiotic Resistance Profile of Salmonella Typhimurium Isolated from Calves Fecal Samples of Dairy Farms in Hamedan
Introduction: Calf diarrhea is one of the significant problems in dairy farms associated with treatment costs and reduced livestock production. Salmonellae are among the most common and the major causative agents of diarrhea in calves and humans. The present study was carried out to isolate and identify Salmonella in fecal samples of calves in industrial dairy farms of Hamedan and to determine ...
متن کاملPrediction of urinary and fecal nitrogen excretion by beef cattle.
An analysis of predicting urinary and fecal N excretion from beef cattle was conducted using a data set summarizing 49 published studies representing 180 treatment means for 869 animals. Variables included in the data set were initial BW (kg), DMI (kg/d), dietary CP content (% of DM), N intake (g/d), apparent total tract N digestibility (%), and urinary and fecal N excretion (g/d). Correlation ...
متن کاملThe biochemistry of the metabolic fecal protein nitrogen.
In determining the nutritional value of various protein preparations in the infant in terms of nitrogen balance and growth response, it occurred to us that these results would gain in significance if the nature of the fecal proteins excreted under the various regimens were known. Although it is clear from the literature that the amount and composition of the fecal fat are to a large extent inde...
متن کاملCharacterization of the Fecal Bacterial Microbiota of Healthy and Diarrheic Dairy Calves
BACKGROUND Neonatal diarrhea accounts for more than 50% of total deaths in dairy calves. Few population-based studies of cattle have investigated how the microbiota is impacted during diarrhea. OBJECTIVES To characterize the fecal microbiota and predict the functional potential of the microbial communities in healthy and diarrheic calves. METHODS Fifteen diarrheic calves between the ages of...
متن کاملMetabolic Disorders in Dairy Calves in Postpartum Period
Podhorský A., A. Pechová, r. dvořák, L. Pavlata: Metabolic Disorders in Dairy Calves in Postpartum Period. Acta vet. Brno 2007, 76: s45-s53. the aim of this study was, in terms of analysis of causes of disorders in calves on dairy farms, to evaluate occurrence of metabolic disorders in their postnatal period. In 23 agricultural farms (14 farms with the incidence of clinical forms of disease in ...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1957
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas57-022