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Wyszukujesz frazę "feed conversion" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Effect of neem leaf (Azadirachta indica) meal on growth performance and haematology of rabbits
Autorzy:
Unigwe, C. R.
Balogun, F. A.
Okorafor, U. P.
Odah, I. S.
Abonyi, F. O.
Olona, J. F.
Powiązania:
https://bibliotekanauki.pl/articles/1192593.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Rabbits
Neem leaf meal
growth performance
haematology
feed conversion ratio
Opis:
A ten-week experiment using twenty four (24) weaner rabbits (Chinchila x New Zealand White) aged 8 to 9 weeks with an average initial body weight of 431.20+0.74g were randomly allocated to four treatment diets of T1(control), T2(5% NLM), T3(10% NLM) and T4(15% NLM) in a completely randomized design. They were fed for 10 weeks during which data on growth and haematology were collected and analysed using analysis of variance (ANOVA) and means separated using Duncan Multiple Range Test. The results showed that the average total body weight gains were 739.60g (T1), 717.85g (T2), 740.18g (T3) and 729.45g (T4).There was no significant difference (p>0.05) when T1 and T3 as well as T2 and T4 were compared but significant (p<0.05) when T1 and T2 as well as T3 and T4 were compared. Also the average weekly feed intake showed that T1, T2, T3 and T4 consumed 313.91g, 313.24g, 312.48g and 314.69g respectively. However, there was significant difference (p<0.05) when all the treatments were compared in this respect. The feed conversion ratio (FCR) showed that T3 (4.22) was the best followed by T1 (4.24), T4 (4.31) and T2(4.36) with significant differences (p<0.05) among them except (p>0.05) between T1 and T3. The haematological indices showed that though all the parameters fell within the normal physiologic ranges, the PCV was 37.62% (T1), 38.42% (T2), 39.60% (T3) and 39.03% (T4) and when compared, were all significantly different (p<0.05) except (P>0.05) for T3 and T4 while the haemoglobin concentration showed that T1(13.47g/dl) was significantly different (p<0.05) from T2(14.18g/dl), T3(14.34g/dl), and T4(13.97g/dl). The white blood cell count showed that T3 (10.62 x109/L) had the highest value followed by T1 (10.12 x109/L), T4 (9.34 x109/L) and T2 (9.18 x109/L) with a significant difference (p<0.05) occurring when T1 and T3 were compared to T2 and T4 while the red blood cell counts indicated that T1 had the highest value of 4.92 x106/L followed by T3(4.89 x106/L), T2(4.73 x106/L) and T4(4.65 x106/L) without any significant difference among the treatments. All the values fell within the normal range. It is therefore recommended that inclusion of neem leaf meal in the diets of rabbits up to 10% is not detrimental since it improved feed conversion ratio (FCR), growth performance and had no negative effect on haematological values.
Źródło:
World Scientific News; 2016, 55; 51-62
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of feed supplementation with Cu and Zn chelates on the content of these elements in the blood of broiler chickens and their body weight and feed conversion
Wpływ dodatku chelatów Cu i Zn na zawartość tych pierwiastków w krwi kurcząt brojlerów oraz na ich masę ciała i konwersję paszy
Autorzy:
Kaim-Mirowski, S.
Biesiada-Drzazga, B.
Andraszek, K.
Ali, M.S.
Banaszewska, D.
Powiązania:
https://bibliotekanauki.pl/articles/29433616.pdf
Data publikacji:
2022
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
broiler chicken
animal feeding
feed additive
chelate
production performance
body weight
feed conversion
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2022, 21, 1; 3-10
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Probiotic Addition in Commercial Feed to Growth and Survival Rate of Sangkuriang Catfishes (Clarias gariepinus (Burchell, 1822))
Autorzy:
Lili, Walim
Hartanto, Rezky
Kurniawati, Nia
Herawati, Titin
Bangkit, B. S. Ibnu
Powiązania:
https://bibliotekanauki.pl/articles/1109212.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Clarias gariepinus
Sangkuriang catfish
feed conversion ratio
probiotic
specific growth rate
survival rate
Opis:
This study was conducted to determine the effect of probiotic addition in commercial feed to the growth and survival rate of Sangkuriang catfish (Clarias gariepinus). This research was conducted at the Ciparanje Experimental Pond Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran, Jatinangor, West Java. The method in used this research was Completely Randomized Design with four treatments and four replications. The treatment was the variances of probiotic addition which consisted of control (without probiotics), probiotic addition at as much as 0.5 grams / kg of feed, 1 gram / kg of feed and 1.5 grams / kg of feed. The parameters observed were specific growth rate (SGR), absolute biomass, survival rate (SR) and feed conversion ratio (FCR). Data were analyzed using Variant Analysis, at 95% confidence level, and continued with Duncan's Multiple Range Test. The results showed that the increase in the daily growth rate of Sangkuriang catfish was straight-line with the addition of probiotics. Furthermore, commercial probiotics with a dose of 1 gram / kg of feed resulted in specific growth rate of 4.22%, absolute weight of 11 grams, survival rate (SR) of 97.5% and FCR of 0.89.
Źródło:
World News of Natural Sciences; 2018, 21; 130-140
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Using Fermented Lemna sp. in Fish Feed on Growth Rate of Nilem Carp (Osteochilus hasselti)
Autorzy:
Iskandar, Iskandar
Andriani, Yuli
Rostika, Rita
Zidni, Irfan
Riyanti, Namira Alfisah
Powiązania:
https://bibliotekanauki.pl/articles/1076662.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Daily growth rate
Feed conversion ratio
Fermentation
Lemna sp.
Nilem carp
Osteochilus hasselti
Survival rate
Opis:
This research aims to determine the highest level of fermented Lemna sp. used in artficial feed to produce optimum growth rate of Nilem Carp. This research was conducted from March to July 2016, in the Ciparanje Laboratory and Aquaculture Laboratory of the Fisheries and Marine Science Faculty, Universitas Padjadjaran. The method used in this research is experimental, and is of a Completely Randomized Design (CRD). It consists of five treatments and three repetitions, providing one commercial diet (as control) and four fermented Lemna sp. levels (10%, 20%, 30%, and 40%). Collected data are analyzed with analysis of variance F-test at 95% confidence level. The parameters observed in this research are divided into four sub-parameters: nutrition changes of fermented Lemna sp., daily growth rate, feed conversion ratio and survival rate. The crude fiber content of Lemna sp. was reduced from 18.37% to 13.57%, and protein content increased from 19.37% to 23.47%, respectively, after fermentation. Based on the results of this research, fermented Lemna sp. used in fish feed at 40% level produced the best results: a daily growth rate at 0.75%, a feed conversion ratio at 3.61 and a survival rate of up to 100%.
Źródło:
World News of Natural Sciences; 2019, 26; 157-166
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal feed temperature for hydrogen peroxide decomposition process occurring in a bioreactor with fixed-bed of commercial catalase: a case study on thermal deactivation of the enzyme
Autorzy:
Grubecki, I.
Powiązania:
https://bibliotekanauki.pl/articles/185125.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fixed-bed (bio)reactor
hydrogen peroxide decomposition
optimal feed temperature
hydrogen
peroxide conversion
parallel and thermal enzyme deactivation
diffusional resistances
reaktor z nieruchomym złożem
optymalna temperatura zasilania
wodór
konwersja nadtlenku
opory dyfuzyjne
Opis:
On the basis of hydrogen peroxide decomposition process occurring in the bioreactor with fixed-bed of commercial catalase the optimal feed temperature was determined. This feed temperature was obtained by maximizing the time-average substrate conversion under constant feed flow rate and temperature constraints. In calculations, convection-diffusion-reaction immobilized enzyme fixed-bed bioreactor described by a coupled mass and energy balances as well as general kinetic equation for rate of enzyme deactivation was taken into consideration. This model is based on kinetic, hydrodynamic and mass-transfer parameters estimated in earlier work. The simulation showed that in the biotransformation with thermal deactivation of catalase optimal feed temperature is only affected by kinetic parameters for enzyme deactivation and decreases with increasing value of activation energy for deactivation. When catalase undergoes parallel deactivation the optimal feed temperature is strongly dependent on hydrogen peroxide feed concentration, feed flow rate and diffusional resistances expressed by biocatalyst effectiveness factor. It has been shown that the more significant diffusional resistances and the higher hydrogen peroxide conversions, the higher the optimal feed temperature is expected.
Źródło:
Chemical and Process Engineering; 2018, 39, 4; 491--501
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal feed temperature for an immobilized enzyme fixed-bed reactor: a case study on hydrogen peroxide decomposition by commercial catalase
Autorzy:
Grubecki, I.
Powiązania:
https://bibliotekanauki.pl/articles/185291.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optimal feed temperature
maximum hydrogen peroxide conversion
parallel deactivation
immobilized commercial catalase
diffusional resistances
fixed-bed reactor
optymalna temperatura zasilania
maksymalna konwersja nadtlenku wodoru
dezaktywacja równoległa
unieruchomiona komercyjna katalaza
opory dyfuzyjne
reaktor z nieruchomym złożem
Opis:
Optimal feed temperature was determined for a non-isothermal fixed-bed reactor performing hydrogen peroxide decomposition by immobilized Terminox Ultra catalase. This feed temperature was obtained by maximizing the average substrate conversion under constant feed flow rate and temperature constraints. In calculations, convection-diffusion-reaction immobilized enzyme fixed-bed reactor described by a set of partial differential equations was taken into account. It was based on kinetic, hydrodynamic and mass transfer parameters previously obtained in the process of H2O2 decomposition. The simulation showed the optimal feed temperature to be strongly dependent on hydrogen peroxide concentration, feed flow rate and diffusional resistances expressed by biocatalyst effectiveness factor.
Źródło:
Chemical and Process Engineering; 2018, 39, 1; 39--57
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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