scholarly journals Protein Level and Protein Energy Ratio that Produce the Best Gonad Quality of Sea Urchin Tripneustes Gratilla

2014 ◽  
Vol 5 (1) ◽  
pp. 95
Author(s):  
Agnette T ◽  
M. Zairin ◽  
Mokoginta Mokoginta ◽  
M. A. Suprayudi ◽  
F. Yulianda
2020 ◽  
Vol 51 (10) ◽  
pp. 4087-4102
Author(s):  
Abigail J. Onomu ◽  
Niall G. Vine ◽  
Mark D. Cyrus ◽  
Brett M. Macey ◽  
John J. Bolton

2013 ◽  
Vol 37 (7) ◽  
pp. 1050 ◽  
Author(s):  
Haisen ZHOU ◽  
Yaqing CHANG ◽  
Shibin LUO ◽  
Xiaofei TIAN ◽  
Weijie ZHANG ◽  
...  

2018 ◽  
Vol 24 (5) ◽  
pp. 1444-1455 ◽  
Author(s):  
M.G. Volpe ◽  
A. Fabbrocini ◽  
F. Siano ◽  
E. Coccia ◽  
G. Scordella ◽  
...  

Aquaculture ◽  
2017 ◽  
Vol 477 ◽  
pp. 50-61 ◽  
Author(s):  
Satomi Takagi ◽  
Yuko Murata ◽  
Eri Inomata ◽  
Hikaru Endo ◽  
Masakazu N. Aoki ◽  
...  

2020 ◽  
Vol 18 (2) ◽  
pp. 214-221
Author(s):  
Agnette Tjendanawangi ◽  
Nicodemus Dahoklory

ABSTRACT   Gonad quality of sea urchin Tripneustis gratilla is influenced by consumed seaweed type. Therefore, this study was conducted to determine the type of seaweed as potential source of carotenoids and produce a good quality of sea urchin gonad. The study was conducted in two phases, namely first phase was to obtain the content of carotenoids and β-carotene from several species of seaweed; and second phase was to testify the seaweed that produced high quality of sea urchin gonad.This study used completely randomized design with 4 treatmens of macroalgae diets, namely: 1. Enhalus sp., 2. Sargassum sp., 3. Ulva sp., and 4. Eucheuma sp. Each treament was repeated three times. Measured parameters were gonad weight, gonad maturity index, gonad color quality, and gonad texture.  The study result showed that Enhalus contained the highest carotenoid and β-carotene content with 1409.53 and 639.37 mg/kg respectively. The highest gonad weight was 2.8 g; gonad color and texture was good (score 3); and the highest gonad maturity index was 5.4% that obtained from sea urchin fed with Enhalus. Therefore, this study concludes that Enhalus is potential source of carotenoids for sea urchin T. gratilla diet that will produce a good quality of gonad.   Keywords: carotenoid, diet, gonad quality, sea urchin, seaweed.


Author(s):  
O.A. Buzhyn

The general level of nutrition of the population of Ukraine was studied. The degree of satisfaction of physiological nutritional needs was studied through the main indicators of food quality — energy and protein. As the starting point for this, the Standards for the physiological needs of the population of Ukraine in the main nutrients and energy and the annual statistics were taken. The analysis of the results showed that during the years 2010-2016 the index of physiological norm of consumption of food energy should be in the range of 2457-2380 kcal, in average 2400 kcal. Indicators for protein should be 75,7-75,9 g and 75,4 g respectively. The actual indices for providing physiological nutritional needs for energy and protein were 2983-2742, 2905 kcal, 87,5-84,1, 87,5 g. respectively. The energy-protein ratio during the years 2010-2016 normally should be in the amount of 31,5-31,7 and an average of 31,8 kcal/g. The actual values were at the level of 34,1-32,6 and 33,2 respectively. The indicator of protein-energy ratio, for the years 2010-2016, should normally be in the range of 30,8-31,5 and in average 31,4 g/1000 kcal. Actual values were at the level of 29,3-32,6 and 30,1 g /1000 kcal respectively. The actual average energy-protein ratio was higher for 4,4 percent, while the protein-energy ratio was 4,1 percent lower. The values of the energy-protein and protein-energy ratio indicate the level of physiological fullness of the diet. The obtained results can be used as one of the possible approaches for analyzing the overall quality of the population's nutrition. Key Words: nutrition, energy, protein, physiological norms, energy-protein ratio, protein-energy ratio.


2006 ◽  
Vol 43 (3) ◽  
pp. 364-371 ◽  
Author(s):  
Dominique Turck ◽  
Christophe Grillon ◽  
Emmanuelle Lachambre ◽  
Patrick Robiliard ◽  
Laurence Beck ◽  
...  

2018 ◽  
Vol 96 (suppl_3) ◽  
pp. 73-74
Author(s):  
S Liu ◽  
J Cho ◽  
W Yun ◽  
C Lee ◽  
J Lee ◽  
...  

1995 ◽  
Vol 198 (3) ◽  
pp. 645-653 ◽  
Author(s):  
C Shingyoji ◽  
K Yoshimura ◽  
D Eshel ◽  
K Takahashi ◽  
I R Gibbons

The heads of demembranated spermatozoa of the sea urchin Tripneustes gratilla, reactivated at different concentrations of ATP, were held by suction in the tip of a micropipette and vibrated laterally with respect to the head axis. This imposed vibration resulted in a stable rhythmic beating of the reactivated flagella that was synchronized to the frequency of the micropipette. The reactivated flagella, which in the absence of imposed vibration had an average beat frequency of 39 Hz at 2 mmol l-1 ATP, showed stable beating synchronized to the pipette vibration over a range of 20-70 Hz. Vibration frequencies above 70 Hz caused irregular, asymmetrical beating, while those below 20 Hz induced instability of the beat plane. At ATP concentrations of 10-100 mumol l-1, the range of vibration frequency capable of maintaining stable beating was diminished; an increase in ATP concentration above 2 mmol l-1 had no effect on the range of stable beating. In flagella reactivated at ATP concentrations above 100 mumol l-1, the apparent time-averaged sliding velocity of axonemal microtubules decreased when the imposed frequency was below the undriven flagellar beat frequency, but at higher imposed frequencies it remained constant, with the higher frequency being accompanied by a decrease in bend angle. This maximal sliding velocity at 2 mmol l-1 ATP was close to the sliding velocity in the distal region of live spermatozoa, possibly indicating that it represents an inherent limit in the velocity of active sliding.(ABSTRACT TRUNCATED AT 250 WORDS)


Sign in / Sign up

Export Citation Format

Share Document