نتایج جستجو برای: feed indices feed conversion rate fcr

تعداد نتایج: 1184260  

ژورنال: بوم شناسی آبزیان 2012
Asadi, Reza , Fazaei , Zeinab , Sajjadi, Mir Masoud , Sourinejad, Iman ,

This study was conducted to investigate the effect of rearing at differing densities and dietary supplementation with vitamin E on growth indices, survival and carcass composition in fingerling rainbow trout in a 6-week trial. Rainbow trout juveniles with initial body weight of 9.6 ± 0. 69 g at two densities of 50 and 100 pieces per 50 liter were fed two diets with the same protein and fat cont...

2005
H. H. Musa

Seventeen male Ostrich chicks (Ostruiothio, Camelus camelus) aged one month old were brought from Radom National Park to the research farm of University of Nyala, both in Sudan, and reared indoor, concentrate rations were formulated and provided ad-libitum and water equally supplied. During the study period, chick behaviour were observed, body weight gained (g/day), feed intake (g/day), water c...

Journal: :Poultry science 2010
S Varkoohi M Moradi Shahr Babak A Pakdel A Nejati Javaremi M Zaghari A Kause

We investigated the effect of selection for 4-wk feed conversion ratio (FCR) on genetic improvement of FCR, BW, weight gain (WG), feed intake (FI), and residual FI (RFI) in Japanese quail. The F line was selected for reduced FCR and the C line was maintained as a randombred control. In each generation, 35 sires and 70 dams were used as parents for the next generation. Three generations of selec...

Journal: :Journal of animal science 2010
A K Kelly M McGee D H Crews A G Fahey A R Wylie D A Kenny

This study examined the relationship of feed efficiency and performance with feeding behavior, blood metabolic variables, and various body composition measurements in growing beef heifers. Individual DMI and growth were measured in yearling Limousin x Holstein-Friesian heifers [n = 86; initial BW = 191.8 (SD = 37) kg] fed a TMR diet comprising 70:30 concentrate:corn silage on a DM basis (ME of ...

ژورنال: علمی شیلات ایران 2019

The present study was conducted to determine the effect of saffron petal powder on the growth and activity of antioxidant enzymes in the grass carp larva (Ctenopharyngodon idella). Fish larva (0.75 ± 0.03 g and 4.39± 0.09 cm) were fed separately with four levels of saffron petal powder diets which were included; P0 (0%), P1 (2%), P2 (4%) and P3 (6%) for 60 days. One thousand two hundred fish we...

Journal: :IOP conference series 2022

Abstract Squid meal can serve as an attractant to increase feed palatability and fish growth. The purpose of this study was determine the optimum dose squid in freshwater eel ( Anguilla marmorata ) elver based on This research conducted from December 2020 February 2021 at Water Quality Aquatic Biology Laboratory, Tadulako University, Palu, Indonesia. completely randomized design (CRD) comprised...

Journal: :iranian journal of applied animal science 2015
a.k. das s. kumar a. rahim

this investigation aimed to assess genetics of body conformation and feed efficiency traits in a control line of rhode island red (rir) chicken taking single hatched out pedigreed 100 chicks at central avian research institute, izatnagar, india. data was analyzed by least squares analysis of variance. least squares means of chick weight (cw), body weight (bw), shank length (sl), keel length (kl...

J. Pirhonen, J. Vielma, U.D. Enyidi,

Plant proteins are plausible fishmeal substitutes but are deficient in some essential amino acids (EAA) like lysine and methionine. Combination of different plant proteins with complimentary EAA could be useful alternative. Bambaranut (Voandzeia subterranea) contains high amount of lysine while methionine is in sesame seed (Sesamum indicum). This experiment tested effects of combining sesame se...

2005
T. A. Scott

With many broiler diets, particularly wheat–based diets, rate of passage of digesta limits intake and growth. In many trials, the relationship between feed intake and apparent metabolizable energy (AME) was negative or insignificant. In some trials, the limitation to voluntary intake was so severe that negative relationships existed between it and FCR. This is a consequence of the diversion of ...

A Solís-Soto B Ramirez-Wong D Reyes-Jáquez E Delgado, H Medrano-Roldán J Rodríguez-Miranda J.R Esparza-Rivera M.A Vivar-Vera

The objective of this research was to evaluate yield parameters (gained weight, weight percentage, survival, feed conversion factor (FCR), feed conversion efficiency (FCE), condition factor (K), specific growth rate (SGR) and hepatosomatic index (HSI) of trouts fed with experimental diets elaborated with bean (Phaseolus vulgaris L.) flour instead of fishmeal with 15, 30 and 45% (BF15, BF30 and ...

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