نتایج جستجو برای: fish yield
تعداد نتایج: 296754 فیلتر نتایج به سال:
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
use of different pesticides in the agriculture sector, in order to boost crop yield within a short time period and low labor, has been tremendously increased since the last decade. pesticide use has elevated crop yield but has produced a number of pronounced problems regarding environmental and health safety. the continuously deteriorating toxicological effects of these pesticides are not only ...
The aim of the study was to determine an influence of diet additives in a form of protected palm oil, protected fish oil or unprotected fish oil with glycerol in Polish Holstein-Friesian cows on milk fatty acid composition, metabolism, milk yield and milk composition. Milk production, milk fat, and milk protein did not differ statistically between the groups. A significant increase (P<0.01) in ...
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
Provinsi Bengkulu menghasilkan 250.000 ton ikan setiap tahunnya. Namun, hasil penelitian para ahli menunjukkan bahwa hampir separuh dari total tangkapan akan berakhir menjadi limbah. Limbah tersebut harus dimanfaatkan agar dapat menghindari polusi lingkungan. Penelitian ini bermaksud untuk memanfaatkan limbah rucah pupuk organik serta melihat pengaruhnya terhadap pertumbuhan dan tanaman jagung ...
(1) The characteristics of the lipids (acetone-soluble lipid, lecithin, cephalin and sphingolipid) obtained from barracuda, Sphyraena pinguis GUNTHER, were studied from the view point of fat metabolism of fish. (2) Forty-one fresh sample fish caught in the Komekami fishing ground near Odawara City (west part of Kanagawa Prefecture, Japan) on the 4th of October, 1959, were extracted with acetone...
The objective of this study was to evaluate meat yield and centesimal composition the Amazonian fish species, A. ocellatus, P. castelnaeana, L. friderici, in dry flood seasonal cycles rivers. In each cycle (flood dry), a total 60 were collected, comprising 20 specimens following species: friderici. Were evaluated yield, cuts samples. Meat clean body skinless filet varied between species hydrolo...
Work under this investigation included farm survey, extension, and research components using both the CLSU research station and demonstration farms. An experiment was conducted for the determination of optimal stocking sizes, considering the growth and survival performance of various sizes of fingerlings along with economic factors. Size #22 sex-reversed nursery phase fingerlings of Nile tilapi...
Commercial harvesting is recognized to induce adaptive responses of life-history traits in fish populations, in particular by shifting the age and size at maturation through directional selection. In addition to such evolution of a target stock, the corresponding fishery itself may adapt, in terms of fishing policy, technological progress, fleet dynamics, and adaptive harvest. The aim of this s...
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