scholarly journals CONSIDERAÇÕES SOBRE O EFEITO DA SALINIDADE NO DESENVOLVIMENTO DE JUVENIS DE EU6BWES BRASILIANUS (CUVIER, 1830) (PISCESGERREIDAE), EM LABORATÓRIO.

1986 ◽  
Vol 1 (3) ◽  
Author(s):  
Daura Regina de Brito Eiras ◽  
Rudival Ribeiro Stofella
Keyword(s):  
Growth Rate ◽  
Food Consumption ◽  
Weight Increase ◽  
Consumption Growth

EFFECT OF SALINITY ON THE DEVELOPMENT OF JUVENILES OF Eugerres brasilianus (Cuvier, 1830) (PISCES-GERREIDAE). Juveniles of Eugerres brasilianus (L< = 8,9 — 9,1cm) were used in bio-assays in order to assess the effect of different salinities (0, 10, 20, 26, 30 and 40%c) upon their development. The rate of food consumption, growth rate and weight increase were analyzed during 6 months. Preferential salinities were, in increasing order: 0, 30, 26, 20 and 10%e>. All individuals died within 48 hours when exposed to a salinity of 40%e.Foram realizados bio-ensaios com exemplares da caratinga Eugerres brasilianus em fase juvenil (L* = 8,9 — 9,1cm), visando determinar os padrões preferenciais de salinidade da espécie neste estádio de desenvolvimento. Utilizou-se como meio de determinação, a taxa de consumo de alimento ao longo dos 6 meses de experimento e as diferenças de comprimento e peso médios totais dos exemplares de cada aquário, entre as fases inicial e final do trabalho. Dentre as salinidades testadas, apenas 40%c é letal e as salinidades preferenciais são, em ordem crescente de aceitação, 0, 30, 26, 20 e 10%o.

Some aspects of the action of diflubenzuron and trifluron on food consumption, growth rate and food utilization by Spodoptera littoralis larvae

1986 ◽  
Vol 32 (2) ◽  
pp. 103-107 ◽  
Author(s):  
H.S.A. Radwan ◽  
O.M. Assal ◽  
G.E. Abo-Elghar ◽  
M.R. Riskallah ◽  
M.T. Ahmed
Keyword(s):  
Growth Rate ◽  
Food Consumption ◽  
Spodoptera Littoralis ◽  
Food Utilization ◽  
Consumption Growth

A note on the performance of Soay ewes, when mated to Soay and Dorset Down rams, and the growth rate and carcass production of their lambs

1980 ◽  
Vol 30 (2) ◽  
pp. 307-310
Author(s):  
R. V. Large
Keyword(s):  
Growth Rate ◽  
Food Consumption ◽  
Growth Rates ◽  
Live Weight ◽  
Weight Changes ◽  
Weight Gains ◽  
Good Nutrition ◽  
Very High

ABSTRACTSoay ewes were mated to a Soay or a Dorset Down ram. Live-weight changes of the ewes, birth weights, growth rates and carcass production of the lambs were recorded, and the food consumption of the ewes and lambs was measured. The use of the Dorset Down ram resulted in significantly heavier birth weights, higher growth rates and heavier carcasses. Under conditions of good nutrition the Soay ewes proved to be capable of carrying very high foetal burdens and it was estimated, from lamb live-weight gains, that they produced a large quantity of milk, relative to their size, particularly when crossed with the Dorset Down ram.

EFFECTS OF BT RICE ON THE FOOD CONSUMPTION, GROWTH AND SURVIVAL OF CHILO SUPPRESSAUS LARVAE UNDER DIFFERENT TEMPERATURES

2001 ◽  
Vol 8 (3) ◽  
pp. 218-226
Author(s):  
WANG Shi-gui ◽  
YE Gong-yin ◽  
HU Cui ◽  
SHU Qing-yao ◽  
XIA Yin-wu ◽  
...  
Keyword(s):  
Food Consumption ◽  
Consumption Growth ◽  
Growth And Survival ◽  
Bt Rice ◽  
Different Temperatures

Increased glucose utilization and cell growth of Corynebacterium glutamicum by modifying the glucose-specific phosphotransferase system (PTSGlc) genes

2016 ◽  
Vol 62 (12) ◽  
pp. 983-992 ◽  
Author(s):  
Jianzhong Xu ◽  
Junlan Zhang ◽  
Dongdong Liu ◽  
Weiguo Zhang
Keyword(s):  
Growth Rate ◽  
Cell Growth ◽  
Corynebacterium Glutamicum ◽  
Production Rate ◽  
Glucose Consumption ◽  
Chemical Mutagenesis ◽  
Transport Systems ◽  
Phosphotransferase System ◽  
Lysine Production ◽  
Consumption Growth

The phosphoenolpyruvate:glucose phosphotransferase system (PTSGlc) is the major pathway of glucose uptake in Corynebacterium glutamicum. This study investigated glucose consumption rate, cell growth, and metabolite changes resulting from modification of PTSGlc. The classical l-lysine producer C. glutamicum XQ-8 exhibited low glucose consumption, cell growth, and l-lysine production rates, whereas these parameters were significantly increased during cultivating on glucose plus maltose, through inactivation of SugR, or by overexpression of PTSGlc genes. XQ-8sugR::cat/pDXW-8-ptsI exhibited the highest increase in glucose consumption, growth rate, and l-lysine production, followed by XQ-8sugR::cat/pDXW-8-ptsG. However, overexpression of ptsH had little effect on the above-mentioned factors. Although co-overexpression of ptsGHI led to the highest glucose consumption, growth rate, and final l-lysine production; the l-lysine production rate was lower than that of XQ-8sugR::cat/pDXW-8-ptsIH. In fed-batch fermentation, XQ-8sugR::cat/pDXW-8-ptsIH had a higher growth rate of 0.54 h−1 to a dry cell mass of 66 g·L−1 after 16 h, and had a higher l-lysine production rate of 159.2 g·L−1 after 36 h. These results indicate that modification of the sugar transport systems improves amino acid production, especially for mutants obtained by repeated physical and (or) chemical mutagenesis. However, modification of these systems needs to be performed on a case-by-case basis.

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