نتایج جستجو برای: fifty six holstein lactating cows 71 days in milk

تعداد نتایج: 17039827  

2012
X. Z. Li B. K. Park C. G. Yan J. G. Choi J. S. Ahn J. S. Shin

A feeding experiment with 40 lactating Holstein cows and 4 dietary treatments was conducted to investigate supplementation with different levels of alcohol fermented feed to the TMR on lactating performance, blood metabolites, milk fatty acid profile and cholesterol concentration of blood and milk. Forty Holstein lactating cows (106±24 d post-partum; mean±SD) were distributed into four groups a...

Journal: :علوم دامی ایران 0
مهدی بهگر کارشناس ارشد پژوهشکده تحقیقات کشاورزی، پزشکی و صنعتی، کرج رضا ولی زاده قطب علمی علوم دامی، دانشکده کشاورزی، دانشگاه فردوسی مشهد محمد میرزایی استاد پژوهشکده تحقیقات کشاورزی، پزشکی و صنعتی، کرج عباس علی ناصریان قطب علمی علوم دامی، دانشکده کشاورزی، دانشگاه فردوسی مشهد

this study was conducted to evaluate the effects of alfalfa hay (ah) particle size and soybean hull (sh) on physical effective fibre (pendf), particle size distribution in diets, chewing activity as well as milk composition and production in early lactating dairy cows. eight lactating holstein cows averaging 590±33 kg of bw and 47±13 days in milk were assigned in a 4×4 latin square design to a ...

Journal: :علوم دامی ایران 0
محمود وطن خواه دانشیار دانشگاه آزاد اسلامی، واحد شهرکرد مهراب فرجی کارشناس ارشد علوم دامی سازمان جهاد کشاورزی استان چهارمحال و بختیاری

four hundered and ninety five (495) smallholder dairy farms active in 52 villages of different cities in chaharmohalo bakhtiari province, keeping 1321 lactating within a total of 2811 mature cows (lactating and dry) were used. these herds were taken during winter 2009 to summer 2010 to assess some of the production, reproductive and economic performance traits under smallholder management syste...

2007
M. J. VanBaale J. E. Shirley M. V. Scheffel E. C. Titgemeyer R. U. Lindquist

Twenty-four multiparous Holstein cows were used in six 4×4 Latin squares with 28day periods to determine inclusion rates for wet corn gluten feed (WCGF) in diets for lactating dairy cows. Cows were housed in a tie-stall barn and fed diets to meet or exceed NRC (1989) nutrient requirements. Experimental treatments were 1) control, 2) WCGF constituting 20%, 3) WCGF constituting 27.5%, and 4) WCGF...

ژورنال: علوم آب و خاک 2008
اعراب, محسن, علیخانی, مسعود , مشرف, شهاب الدین ,

Eight hundred and fifty two multiparous Holstein cows in mid-lactation were used in a completely randomized and nested design with two treatments and three replications. Treatments were: 1) Isfahan and 2) Borkhar-Meymeh. Replications were: 1) class of one to five cows 2) class of six to ten cows and 3) class of eleven to twenty cows. Paired t-test was used for the comparison of nutrient consump...

Journal: :iranian journal of veterinary research 2010
f. fatahnia e. rowghani a. r. hosseini h. darmani kohi m. j. zamiri

the objective of this study was to determine the effects of feeding different levels of monensin on feed intake, milk production and composition, and milk fattyacid profile in lactating holstein cows. four multiparous cows averaging 517 ± 47 (sd) kg in body weight and 101 ± 19.8 (sd) days in milk were housed individually in tie-stalls. the study was conducted as a 4 × 4 latin square design for ...

اعراب, محسن, علیخانی, مسعود , مشرف, شهاب الدین ,

Eight hundred and fifty two multiparous Holstein cows in mid-lactation were used in a completely randomized and nested design with two treatments and three replications. Treatments were: 1) Isfahan and 2) Borkhar-Meymeh. Replications were: 1) class of one to five cows 2) class of six to ten cows and 3) class of eleven to twenty cows. Paired t-test was used for the comparison of nutrient consump...

Journal: :Journal of dairy science 2007
N E Odongo R Bagg G Vessie P Dick M M Or-Rashid S E Hook J T Gray E Kebreab J France B W McBride

The objective of this study was to determine the long-term effects of feeding monensin on methane (CH4) production in lactating dairy cows. Twenty-four lactating Holstein dairy cows (1.46 +/- 0.17 parity; 620 +/- 5.9 kg of live weight; 92.5 +/- 2.62 d in milk) housed in a tie-stall facility were used in the study. The study was conducted as paired comparisons in a completely randomized design w...

K. Shirzadegan, M. A. Jafari

The objective of this study was to determine the effect of different levels of sesame wastes (SW) on performance, milk composition and blood metabolites in lactating dairy cows. In this order, eight multiparous Holstein dairy cows were used in a replicated 4×4 Latin square design in four periods of 21 days. Treatments were control (no Sesame meal supplementat...

K. Shirzadegan, M. A. Jafari

The objective of this study was to determine the effect of different levels of sesame wastes (SW) on performance, milk composition and blood metabolites in lactating dairy cows. In this order, eight multiparous Holstein dairy cows were used in a replicated 4×4 Latin square design in four periods of 21 days. Treatments were control (no Sesame meal supplementat...

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