Effect of larval stocking density on growth, survival and whole body cortisol of the Mediterranean musselMytilus galloprovincialis(Lamarck, 1819) larvae reared under laboratory conditions

2013 ◽  
Vol 46 (7) ◽  
pp. 1648-1656 ◽  
Author(s):  
Luis Lagos ◽  
Marcelino Herrera ◽  
Clara Sánchez-Lazo ◽  
Inés Martínez-Pita
1971 ◽  
Vol 13 (3) ◽  
pp. 270-281 ◽  
Author(s):  
G. William Skinner

Our repertoire of concepts and theories concerning peasantries has been built up through contributions from scholars working in many parts of the world. Latin Americanists and India-wallahs, in particular, have played a major role in the development of models, but we have also heard from specialists in Indonesia, Japan, Europe, the Mediterranean world, and even Africa. But where is China in all this ? Why are students of the world's largest peasantry silent? In part, it is because we are so few and too preoccupied with our own peasants to have time for anybody else's. More to the point, however, the whole body of inherited anthropological wisdom concerning peasantries seems somehow alien and irrelevant to students of Chinese society.


2018 ◽  
Vol 108 (3) ◽  
pp. 633-640 ◽  
Author(s):  
Amy Jennings ◽  
Kevin D Cashman ◽  
Rachel Gillings ◽  
Aedin Cassidy ◽  
Jonathan Tang ◽  
...  

ABSTRACT Background The Mediterranean diet (MD) is widely recommended for the prevention of chronic disease, but evidence for a beneficial effect on bone health is lacking. Objective The aim of this study was to examine the effect of a Mediterranean-like dietary pattern [NU-AGE (New Dietary Strategies Addressing the Specific Needs of the Elderly Population for Healthy Aging in Europe)] on indexes of inflammation with a number of secondary endpoints, including bone mineral density (BMD) and biomarkers of bone and collagen degradation in a 1-y multicenter randomized controlled trial (RCT; NU-AGE) in elderly Europeans. Design An RCT was undertaken across 5 European centers. Subjects in the intervention group consumed the NU-AGE diet for 1 y by receiving individually tailored dietary advice, coupled with supplies of foods including whole-grain pasta, olive oil, and a vitamin D3 supplement (10 µg/d). Participants in the control group were provided with leaflets on healthy eating available in their country. Results A total of 1294 participants (mean ± SD age: 70.9 ±4.0 y; 44% male) were recruited to the study and 1142 completed the 1-y trial. The Mediterranean-like dietary pattern had no effect on BMD (site-specific or whole-body); the inclusion of compliance to the intervention in the statistical model did not change the findings. There was also no effect of the intervention on the urinary biomarkers free pyridinoline or free deoxypyridinoline. Serum 25-hydroxyvitamin D significantly increased and parathyroid hormone decreased (P < 0.001) in the MD compared with the control group. Subgroup analysis of individuals with osteoporosis at baseline (site-specific BMD T-score ≤ −2.5 SDs) showed that the MD attenuated the expected decline in femoral neck BMD (n = 24 and 30 in MD and control groups, respectively; P = 0.04) but had no effect on lumbar spine or whole-body BMD. Conclusions A 1-y intervention of the Mediterranean-like diet together with vitamin D3 supplements (10 µg/d) had no effect on BMD in the normal age-related range, but it significantly reduced the rate of loss of bone at the femoral neck in individuals with osteoporosis. The NU-AGE trial is registered at clinicaltrials.gov as NCT01754012.


2021 ◽  
Vol 49 (2) ◽  
pp. 329-341
Author(s):  
Martin Arenas ◽  
Alfonso Álvarez-González ◽  
Álvaro Barreto ◽  
Adolfo Sánchez ◽  
Gerard Cuzon ◽  
...  

This study was conducted to evaluate juveniles' Ocyurus chrysurus (13.7 ± 0.45 g initial weight) to utilize lipid as an energy source on growth, feed efficiency, body composition, digestive and hepatic enzyme activities. Four diets of two protein levels (40 and 50%) with two lipid levels (6 and 12%) and 2% of digestible carbohydrates were formulated. Fish were fed for 60 days to apparent satiation at a stocking density of 10 fish per tank (100 L). Growth gain of fish fed 50% dietary protein was higher than of fish fed 40% dietary protein (P < 0.05). However, feed efficiency was significantly higher at 12 than 6% of dietary lipid. Whole-body lipid and glycogen in the liver increased dramatically with dietary lipid content-alkaline protease activity trend increased as dietary protein increased. Trypsin activity increased significantly as dietary lipid decreased, whereas chymotrypsin activity showed the opposite trend (P < 0.05). Bile salt-dependent lipase activity trend towards increasing as dietary energy decreased. Glucose-6-phosphate dehydrogenase (G6PDH), 6-phosphogluconate dehydrogenase (6PGDH), and fructose-1, 6-biphosphatase (FBPase) significantly increased with increasing dietary lipid levels. However, alanine aminotransferase (ALT) activity increased with dietary protein content. On the other side, pyruvate kinase (PK) activity increased with both dietary protein and lipid content. This study indicates that high dietary lipid (12%) improved the feed efficiency but did not reduce dietary protein demand in juveniles O. chrysurus.


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