Effect of body lipid content is linked to nutritional adaptation in the acclimation responses of mesic-adapted Paederus to seasonal variations in desiccation stress

2021 ◽  
Vol 131 ◽  
pp. 104226
Author(s):  
Lee-Jin Bong ◽  
Chia-Yu Wang ◽  
Satomi Shiodera ◽  
Takashi F. Haraguchi ◽  
Masayuki Itoh ◽  
...  
Keyword(s):  
Lipid Content ◽  
Seasonal Variations ◽  
Desiccation Stress ◽  
Body Lipid

Model of spontaneous obesity in aging male Wistar rats

1990 ◽  
Vol 259 (6) ◽  
pp. R1117-R1125 ◽  
Author(s):  
F. D. Newby ◽  
M. DiGirolamo ◽  
G. A. Cotsonis ◽  
M. H. Kutner
Keyword(s):  
Body Weight ◽  
Lipid Content ◽  
Wistar Rats ◽  
Lipid A ◽  
Curvilinear Relationship ◽  
Body Lipid ◽  
Fat Depots ◽  
Male Wistar Rats ◽  
Total Body ◽  
Relationship Of

We analyzed retrospectively data from 148 chow-fed male Wistar rats killed between the age of 6 wk and 2 yr while varying in body weight from 136 to 917 g. The purpose of this study was to clarify the relationship of body weight and body lipid content with the composition and cellularity of the epididymal and retroperitoneal fat depots. A positive linear association was found between body weight and body water or fat-free dry residue, whereas total body lipid exhibited a curvilinear relationship with body weight. The weight of the epididymal pads was linearly related to body weight but not to body lipid. In contrast, retroperitoneal pad weight was exponentially related to body weight and paralleled total body lipid. A strong linear correlation was found between total body lipid and weight (r = 0.959) or depot lipid content (r = 0.967) of the retroperitoneal fat pads. In this rat model of aging and spontaneous obesity, significant regional differences exist in adipose depot composition and cellularity. A practical outcome of this study is a simple and accurate prediction of body lipid content from the gravimetric determination of the retroperitoneal fat depots.

Seasonal Changes in General Condition and Lipid Content of Cod from Inshore Waters

1967 ◽  
Vol 24 (3) ◽  
pp. 607-612 ◽  
Author(s):  
P. M. Jangaard ◽  
H. Brockerhoff ◽  
R. D. Burgher ◽  
R. J. Hoyle
Keyword(s):  
Seasonal Variation ◽  
Nova Scotia ◽  
Lipid Content ◽  
General Condition ◽  
Seasonal Variations ◽  
Seasonal Changes ◽  
Oil Content ◽  
Gadus Morhua ◽  
Male Fish ◽  
Inshore Waters

The seasonal variations in lipid content and general "condition" of cod, Gadus morhua L., from an inshore population have been determined.Four female and four male fish were chosen from 20 live cod brought in monthly from Terence Bay, Halifax County, Nova Scotia, the fish were pooled and the lipid content determined on the flesh, livers, and gonads. The flesh lipids varied from 0.57% to 0.74% and the oil content of the livers from 15% to 75%.The general "condition" of the fish as expressed by [Formula: see text], the liver condition by [Formula: see text], and the fat content of the liver all showed seasonal variation with maxima in the fall and minima in the spring. KF varied from 0.79 to 1.05 and KL from 1.0 to 4.5. No seasonal variation in the amount of flesh lipids could be detected.

scholarly journals Utility of Condition Indices as Predictors of Lipid Content in Slimy Sculpin (Cottus cognatus)

Diversity ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 71 ◽  
Author(s):  
Hards ◽  
Gray ◽  
Noël ◽  
Cunjak
Keyword(s):  
Lipid Content ◽  
Condition Factor ◽  
Whole Body ◽  
Moderate Degree ◽  
Body Lipid ◽  
Indirect Measurements ◽  
Cottus Cognatus ◽  
Slimy Sculpin ◽  
Relative Condition Factor ◽  
Condition Indices

Slimy sculpin (Cottus cognatus) are increasingly being used as indicator species. This has primarily entailed measuring their condition, the assumption being that condition can be used as a surrogate for lipid content. While there is evidence to suggest this assumption is applicable to some fish, it has yet to be validated for C. cognatus. Further, there are several means by which one may calculate condition, the most commonly employed of which are indirect measurements of lipid content (namely, Fulton's K, somatic K (Ks), and Le Cren's relative condition factor (Kn)). We compared the ability of each of these morphometric indices to predict whole-body lipid content in C. cognatus. There was a moderate degree of evidence that Fulton's K, Ks, and Kn are reliable predictors (Ks and Kn in particular). Of the latter we recommend Kn be used because, unlike Ks, it does not require that fish be killed. And while Fulton's K did not perform quite as well, we consider it a sufficient substitute if the data necessary to calculate Kn are unavailable.

Correlations among methods to estimate lipid reserves of second-stage juveniles and its relationships with infectivity and reproduction of Meloidogyne incognita

Nematology ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 345-352 ◽  
Author(s):  
Fernando da Silva Rocha ◽  
Vicente Paulo Campos ◽  
Hugo César Rodrigues Moreira Catão ◽  
Maria de Fátima Silva Muniz ◽  
Nody Civil
Keyword(s):  
Image Analysis ◽  
Lipid Content ◽  
Meloidogyne Incognita ◽  
Neutral Lipids ◽  
The Body ◽  
Body Lipid ◽  
Second Stage ◽  
Neutral Lipid Content ◽  
Oil Red O ◽  
Lipid Index

We studied the correlations between the processes used to estimate the body lipid of second-stage juveniles (J2) of Meloidogyne exigua and M. incognita, and the infectivity and reproduction of the M. incognita J2. The lipids were quantified by image analysis of the area stained red with Oil Red O dye and by the dark area of the non-stained J2. The content of neutral lipids of stained J2 of M. exigua and M. incognita correlated positively to the lipid index, body mass lipid and the dark area of J2. The period of incubation of J2 decreased the neutral lipids content and correlated significantly with the reductions of infectivity and reproduction. The period of 6 days incubation of M. incognita resulted in losses of more than 50% of the neutral lipid content, representing the threshold period for infectivity on tomato, whereas, for reproduction, the threshold was 3 days incubation.

scholarly journals Dietary Available Phosphorus Affected Growth Performance, Body Composition, and Hepatic Antioxidant Property of Juvenile Yellow CatfishPelteobagrus fulvidraco

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Qin Tang ◽  
Chunfang Wang ◽  
Congxin Xie ◽  
Jiali Jin ◽  
Yanqing Huang
Keyword(s):  
Body Composition ◽  
Growth Performance ◽  
Lipid Content ◽  
Antioxidant Property ◽  
Available P ◽  
Available Phosphorus ◽  
Body Lipid ◽  
Yellow Catfish ◽  
P Content ◽  
P Utilization

An 8-week feeding trial was carried out with juvenile yellow catfish to study the effects of dietary available phosphorus (P) on growth performance, body composition, and hepatic antioxidant property. Six pellet diets were formulated to contain graded available P levels at 0.33, 0.56, 0.81, 1.15, 1.31, and 1.57% of dry matter, respectively. Triplicate tanks with each tank containing 60 juveniles (3.09 ± 0.03 g) were fed one of the six experimental diets for 8 weeks. Specific growth rate, feeding rate, and protein efficiency ratio were significantly higher at 0.81% dietary available P. Efficiency of P utilization distinctly decreased with increasing P level. Body lipid content significantly decreased while body ash and feces P content significantly increased with increasing P level. Quadratic regression analysis indicated that vertebrae P content was maximized at 1.21% dietary available P. Fish fed 1.57% dietary available P had highest activity of hepatic superoxide dismutase and catalase and malonaldehyde content. In conclusion, decreasing dietary available P increased P utilization efficiency and body lipid content while decreased vertebrae P content. Juvenile yellow catfish were subjected to oxidative damage under the condition of high dietary P content (1.57%), and the damage could not be eradicated by their own antioxidant defense system.

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