نتایج جستجو برای: milk sold on farm and daily milk production per cow

تعداد نتایج: 18629019  

Journal: :Veterinary research 2003
Henri Seegers Christine Fourichon François Beaudeau

Mastitis is the most prevalent production disease in dairy herds world-wide and is responsible for several production effects. Milk yield and composition can be affected by a more or less severe short-term depression and, in case of no cure, by a long-acting effect, and, sometimes, an overlapping effect to the next lactation. Summary values in the literature for losses of milk production were p...

Journal: :علوم دامی ایران 0
هدی جواهری بارفروشی دانش آموخته دکتری، دانشکده علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، و استادیار بخش تحقیقات مدیریت پرورش دام و طیور موسسه تحقیقات علوم دامی کشور، کرج آرمین توحیدی دانشیار گروه علوم دامی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران حسن صادقی پناه استادیار بخش تحقیقات مدیریت پرورش دام و طیور مؤسسة تحقیقات علوم دامی کشور، کرج، ایران مهدی ژندی استادیار گروه علوم دامی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران سعید زین الدینی دانشیار گروه علوم دامی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران،

the aim of this experiment was evaluating effect of fish oil versus palm oil on mammary gland health and milk production in holstein cows. ten multiparous holstein cows were used from six week before up to 63 days after parturition. feed intake and milk production were recorded daily, milk composition, body weight and body condition score were measured weekly and blood metabolites were determin...

Journal: :Journal of dairy science 2012
K Alvåsen M Jansson Mörk C Hallén Sandgren P T Thomsen U Emanuelson

An increase in on-farm mortality (euthanasia and death) in dairy herds has been reported in several countries in the last decade. This does not only imply possible problems with animal welfare, but it also causes economic losses to the farmer. The objective of this study was to evaluate time trends in on-farm dairy cow mortality in Sweden and identify potential herd-level risk factors. Data wer...

Journal: :iranian journal of veterinary research 2012
m. danesh mesgaran r. jafari jafarpoor s. danesh mesgaran

to evaluate the effects of physically processed flaxseed [ground flaxseed (gfs) and whole flaxseed(wfs)] as a replacement for extruded soybeans on feed intake, milk production, milk composition, milk fatty acid (fa) composition and blood biochemical parameters, nine primiparus holstein dairy lactating cowsaveraging 495 ± 34.5 kg of body weight (bw) and 70 ± 5 days in milk (dim) were assigned in...

2016

The study was conducted in Addis Ababa town, central Ethiopia. To assess the general milk handling practice, determine physicochemical properties and evaluate the microbial quality of raw cow milk produced through the milk sheds found in the town. A cross sectional study was conducted in the study area and then purposively based on dairy potential three sub cities i.e., Akaki-Kality, Nifas Silk...

Journal: :Journal of dairy science 2004
I Halachmi

A mathematical simulation model was used to assist 5 farmers in developing design criteria for inclusion of robotic milking systems in each farm situation. The barn layout influences arrivals of cows to the milking robot as well as other cow traffic and must be carefully planned. Each farmer had individual objectives and consequently unique design criteria that determined the optimal solution. ...

2006
P. DILLON

Due to economic, environmental and animal-welfare constraints, it is envisaged that in the future a larger proportion of the milk produced in temperate regions will be produced from grazed pasture. However, with the selection of modern higher-production dairy cows, increased emphasis on product quality and issues associated with nitrogen leaching, soil compaction, greenhouse-gas emissions and a...

Journal: :پژوهش های علوم دامی ایران 0
ابوالفضل کیانی احمد ریاسی سعید انصاری مهیاری غلامرضا قربانی محمد خوروش

the objective of this study was to evaluate the effect of different milking frequencies in the first 6 weeks of lactation on milk production and milk constituents, blood metabolic profiles and reproductive performance of fresh dairy cows. the milking frequencies imposed were three times daily milking for 42 days (3x), six times daily milking for the first 21 days of lactation and three times da...

2010
PA Oltenacu DM Broom

Milk yield per cow has more than doubled in the previous 40 years and many cows now produce more than 20,000 kg of milk per lactation. The increase in production should be viewed with concern because: i) the increase in milk yield has been accompanied by declining fertility, increasing leg and metabolic problems and declining longevity; ii) there are unfavourable genetic correlations between mi...

Journal: :journal of family and reproductive health 0
mansoreh norrozi valie-asr reproductive health research center, tehran university of medical science, tehran, iran. fedyeh haghollahi valie-asr reproductive health research center, tehran university of medical science, tehran, iran. fatemeh ramezanzadeh valie-asr reproductive health research center, tehran university of medical science, tehran, iran. parichehr hanachi department of biology, biochemistry unite, faculty of basic sciences, alzahra university, tehran, iran.

to find out whether or not soy milk as a phytoestrogen product can improve the quality of life of the iranian postmenopausal women.participants of this randomized clinical trial were 57 healthy postmenopausal women. all eligible women were randomly divided into two groups of soy milk (sg) and control (cg). individuals in the sg (n = 34) received 500 ml soy milk including genistein (28.86 mg/dl)...

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