نتایج جستجو برای: 1630 thousand rails 2306 total for average lactation length
تعداد نتایج: 10670770 فیلتر نتایج به سال:
in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...
determination of milk yield potential using an accurate method is essential for assessing nutritional requirements, evaluation of genetic potential, lamb growth and survival, management decisions and improving performance traits of sheep flocks. exogenous oxytocin injection is applied to estimate milk secretion rate in sheep. oxytocin is a neurohormone produced in the hypothalamo-neurohypophysi...
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
The studies were carried out on cows of Holstein black-and-white breed. 2 groups 10 heads each formed. milk yield for lactation was thousand kg in the first group, and - 5 second group. Blood collected from subcaudal vein monthly during lactation. T 3 4 determined blood serum. functional “load” thyroid gland performed at peak (3 months) its end 9 months. TSH preparation a dose 0.5 u/kg live wei...
The study was conducted to estimate the genetic and phenotypic correlations among body measurements, body weight, kidding interval, kidding rate and milk yield in the different breeds of goat. Data was collected on 95 goats of three breeds (Jamunapari, Black Bengal and their crosses (Jamunapari×Black Bengal) through direct observation. The average body weight of Jamunapari goat was 34.75 ± 3.33...
The objective of this study was to retrospectively investigate causes of variation in the reproductive performance of purebred Hampshire sows in Sweden. Data analysed comprised farrowings between 1992 and 1998 from five Swedish nucleus herds and included 6347 litters from 2210 sows. The main traits analysed were litter size, weaning-to-first service interval (WSI), farrowing rate, remating rate...
in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
This study was make in order to determine according the of lactation, composition milk, Murrah x Anatolian Water Buffaloes (M A) crossbreds raised Institute conditions. The animal material consisted total 47 heads M A crossbreeds cows. data included between February 2016 - January 2018. Actual milk yield used average lactation length and yield. Milk samples were taken specify components. fat, n...
Knowledge of genetic parameters is essential for improved reproductive management and increased yield. Quantitative analysis of genetic parameters is lacking for many breeds of buffaloes. This article provides the first estimate of genetic parameters for dual purpose (meat and milk) Brazilian Jaffarabadi buffaloes, using Bayesian inference. Data on milk yield (MY), lactation length (LL), weight...
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