نتایج جستجو برای: rumen and fecal ph

تعداد نتایج: 16863273  

Journal: :iranian journal of applied animal science 2013
n.a. tufani d.m. makhdoomi a. hafiz

forty two small ruminants, 26 (61.90%) sheep and 16 (38.10%) goats were treated for rumen acidosis. 19 (45.24%), 12 (28.57%), 6 (14.29%) and 5 (11.90%) animals had eaten apple, cooked rice (wazwan left over) turnip and chapatti respectively and manifested clinical form of ruminal acidosis with, 2.86%; (n=18) as mild (rumen fluid ph=6.32 ±0.09316), 38.09%;(n=16)moderate (rumen fluid ph=5.71 ±0.0...

Journal: :Journal of animal science 2016
M Wang R Wang P H Janssen X M Zhang X Z Sun D Pacheco Z L Tan

Dissolved hydrogen (dH) influences the pathways of VFA production and is a precursor of methane formation in the rumen. Measurements of dH in rumen fluid taken at the same time as measuring other rumen fermentation end products would improve our quantitative understanding of the role of dH as a controller of rumen fermentation. Sample collections though a rumen cannula and using oral stomach tu...

Afshin Jafari-Dehkordi, Mohammad Rahim Haji-Hajikolaei Zahra Karimi-Dehkordi

For induction of ruminal acidosis, 10 clinically healthy three years old non pregnant female sheep were selected. Prior to the infusion of sucrose (0 hour), rumen and blood samples were obtained in order to determine baseline rumen and blood pH, respectively. Electrocardiogram (ECG) was also recorded. Acute ruminal acidosis was induced experimentally with sucrose at a dose of 18g kg-1 body weig...

Journal: :journal of agricultural science and technology 2010
a. afzalzadeh f. d. de hovell

the objective of this study was to test whether the stimuli of osmotic pressure (op), vfa or ph in the omasum would affect the passage of digesta from the rumen and feed intake in sheep. five experements were carried out. different solutions with specific, op, vfa concentration and ph were infused into the omasal body. rumen digesta volumes and outflow rates (liquid and solid) were measured by ...

F. Hozhabri, M.E. Nooryan Soroor M.M. Moeini S. Mirzaei Cheshmehgachi

In this experiment, different doses of Zataria multiflora (ZM) and Eucalyptus globolus (EG) essential oils (EOs) (0, 100, 250, 500, 750 and 1000 µg/mL) and a mixture of them were added to alfalfa hay incubated with buffered rumen liquor of Merghoz goat to assess in vitro gas production, rumen fermentation and protozoa population. In all treatments the asymptotic gas volume (B) and the rate cons...

Rumen is a persistent and specific ecosystem consists of bacteria, protozoa and fungus where feed fermentation takes place in it. Produced Hydrogen in rumen can be used in the synthesis of the volatile fatty acids and the microbial protein and its excess would be eliminated through the production of Methane by methanogenesis. Nutritionists have tried to find ways to decrease loss and energy and...

A. Ben Gara B. Jemmali B. Rekik H. Rouissi H. Selmi,

The effect of the substitution of imported raw materials (corn and soyabeans) by local food resources (barley, white sorghum, triticale and horse bean) on the parameters of faciesfermentation and digestibility in the rumen of sheep was evaluated. Four Sicilo-Sarde rams 4.8±0.5 years of age with an average live weight of 45.25±3.5 kg, permanently canulated in the rumen and housed in individual c...

Journal: :علوم دامی ایران 0
علی خلج هدایتی دانشجوی سابق کارشناسی ارشد علوم دامی دانشگاه زنجان حمید امانلو عضو هیئت علمی دانشگاه زنجان علی نیکخواه استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران - کرج طاهره امیرآبادی دانشجوی سابق کارشناسی ارشد علوم دامی دانشگاه زنجان نجمه اسلامیان فارسونی دانشجوی سابق کارشناسی ارشد علوم دامی دانشگاه زنجان

to compare the nutritional value of rapeseed meal and cottonseed meal in holstein cows, feeding 20 lactating holstein cows each with an average weight of 580± 34 kg and 100± 10 days in milk were studied in a randomized complete block design. the experimental diets consisted of 4 levels of 0, 8, 14 and 25 percent rapeseed meal replaced with cottonseed meal and barley grain in the diets. diets we...

2010
Trevor J. DeVries

In dairy cattle, the rumen environment is designed to function optimally within a pH range of 6.2 to 7.2. To maintain healthy rumen function, dairy cows require diets that contain adequate amounts of physically effective neutral detergent fiber (peNDF). Ensuring adequate intake of peNDF can, however, be difficult because most commercial dairy rations, designed to maximize milk production, conta...

Journal: :Acta Veterinaria Scandinavica 2009
Michael A Steele Ousama AlZahal Sarah E Hook Jim Croom Brian W McBride

A mature dairy cow was transitioned from a high forage (100% forage) to a high-grain (79% grain) diet over seven days. Continuous ruminal pH recordings were utilized to diagnose the severity of ruminal acidosis. Additionally, blood and rumen papillae biopsies were collected to describe the structural and functional adaptations of the rumen epithelium. On the final day of the grain challenge, th...

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