نتایج جستجو برای: increased yield of milk and 4 fcm yield in fresh cows d 1 to 21 milk protein content as well as yield and somatic cell count scc

تعداد نتایج: 26964823  

Journal: :Journal of Dairy Science 2021

Temporary cessation of milking is widely used during the dry period dairy cows. induces an increase in somatic cell count (SCC) and level several inflammatory components milk, which believed to be a local adaptation defense mechanism mammary gland. In Japan, temporary combined with antibiotic administration treat mastitis. The present study aimed elucidate role innate immune system goat model b...

Journal: :Journal of dairy science 2001
Z Wang M L Eastridge X Qiu

Sixty Holstein cows were assigned to two treatments at 21 d before calving and were group-fed a prepartum diet with or without yeast culture. After parturition, cows were individually fed one of five treatments for 140 d: 1) 21% forage neutral detergent fiber (NDF) without yeast culture, 2) 21% forage NDF with yeast culture, 3) 17% forage NDF without yeast culture, 4) 17% forage NDF with yeast ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

The objective of this study was to compare the effects of soybean (SB) meal (SBM) with increased rumen undegradable protein as roasted SB (RSB), extruded SB (ESB) or their equal blend (RSB + ESB) on production performance, nutrient digestibility, N-utilization efficiency, and blood metabolites in mid-lactation dairy cows. Eight lactating Holstein cows (BW = 534 ± 52 and DIM = 104 ± 5; mean ± SD...

Journal: :علوم دامی ایران 0
سید هادی حسینی دانش آموخته کارشناسی ارشد، گروه علوم باغبانی دانشکده کشاورزی، دانشگاه تربیت مدرس یوسف روزبهان دانشیار گروه علوم باغبانی دانشکده کشاورزی، دانشگاه تربیت مدرس علیرضا آقا شاهی استاد موسسه تحقیقات علوم دامی کشور، کرج جواد رضایی دانشجوی دکتری گروه علوم باغبانی دانشکده کشاورزی، دانشگاه تربیت مدرس

this research was conducted to assess the effect of substituting corn for barley grain in diet on performance and reproductive characteristics of early lactating, holstein dairy cattle. a number of fifteen cows in their second lactation (26±11 dim) with 36.7±5.6 kg milk/d were investigated for 75 day (15 day for adaptation and 60 day for sampling) in a completely randomized design. the iso-ener...

Journal: :Journal of dairy science 2000
H D Norman R H Miller J R Wright G R Wiggans

To determine the impact of reducing the current legal limit of 750,000 cells/ml for somatic cell count (SCC) in US market milk, data were examined from 539,577 herd test days for Dairy Herd Improvement herds on test during 1996 and 1997. Somatic cell scores for individual cows were converted to SCC. The SCC for each cow was weighted by milk yield and used to compute herd mean on test day. The m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1388

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1391

abstract lexical knowledge of complex english words is an important part of language skills and crucial for fluent language use (nation, 2001). the present study, thus, was an attempt to assess the role of morphological decomposition awareness as a vocabulary learning strategy on learners’ productive and receptive recall and recognition of complex english words. so 90 sophomores (female and ma...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم 1371

we describe here a suitable approach for the synthesis of n-unsubstituted monocyclic b-lactams under mild reaction conditions by the annelation of imines with substituted acetylchlorides. in this method the reaily available phtalimidoacetyl chloride were allowed to react with - dibenzylideneiminotoluene (hydrobenzamide) in the presence of an equimolar amount of triethylamine in refluxing toluen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1392

abstract this study investigated the predictability of variables from a motivational framework as well as individuals qualities to predict three non-linguistic outcomes of language learning. gardners socio-educational model with its measures has been used in the current study. individual qualities presented in this study include (1) age, (2) gender, and (3) language learning experience. the...

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