scholarly journals The Effect of Dietary Melengestrol Acetate (MGA)® on Body Weight Gain, Percentage Carcass Fat and Fatty Acid Composition of Roasting Chickens

1969 ◽  
Vol 48 (2) ◽  
pp. 543-548 ◽  
Author(s):  
N.G. Sauer ◽  
D.A. Cramer ◽  
J.V. Shutze
Keyword(s):  
Body Weight ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Weight Gain ◽  
Acid Composition ◽  
Body Weight Gain ◽  
Melengestrol Acetate ◽  
Weight Gain Percentage

scholarly journals Effect of the Dietary Fat Sources on Performance, Liver Fatty Acid Composition and Meat Cholesterol Content in Broiler

2018 ◽  
Vol 7 (3.7) ◽  
pp. 167
Author(s):  
Jannatara. Khatun ◽  
Teck Chwen Loh ◽  
Henny Akit 1 ◽  
Hooi Ling Foo ◽  
Rosfarizan Mohammad
Keyword(s):  
Body Weight ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Weight Gain ◽  
Acid Composition ◽  
Body Weight Gain ◽  
Cholesterol Content ◽  
Cholesterol Concentration ◽  
Daily Body Weight ◽  
Dietary Treatments

A study was conducted to evaluate the effect of feeding diet containing palm oil (PO) and sunflower oil (SO) and their combination on bird performance, liver fatty acid profile and meat cholesterol content of broiler. A total of 144 day-old broiler chicks (Cobb) randomly assigned into four dietary treatments and fed for six weeks. The dietary treatments were T1, 6% PO (control); T2, 4% PO + 2% SO; T3, 2% PO + 4% SO; and T4, 6% SO. The body weight gain increased and feed conversion ratio (FCR) reduced with the increasing level of unsaturated fatty acid sources oil (SO) compared to control group (PO). Significantly higher (P<0.05) overall daily body weight gain and lower FCR were found in broilers fed dietary treatments T3 compared to other treatments. However, no differences (P<0.05) were found in daily body weight gain and FCR among the two combination of oil and SO alone. Dietary treatments influence the fatty acid composition of liver and increasing the dietary SO decreased the level of C16:0, C18:0, C18:1n-9, SFA and MUFA and increased the C18:2n-6, UFA: PUFA, UFA: SFA and PUFA: SFA. Birds fed PO had higher cholesterol concentration in meat which was decreased by supplementation of SO in broiler diet. However, cholesterol concentration was not differed in meat among the dietary SO and combination of SO and PO. It could be concluded that supplementation of a combination of PO and SO in broiler diet increased performance, altered the fatty acid composition of liver tissue and decreased cholesterol content of meat which may have a favorable impact on consumer’s health. 

scholarly journals Dietary resveratrol impairs body weight gain due to reduction of feed intake without affecting fatty acid composition in Atlantic salmon

animal ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 25-32 ◽  
Author(s):  
D. Menoyo ◽  
G. Kühn ◽  
N. Ruiz-Lopez ◽  
K. Pallauf ◽  
I. Stubhaug ◽  
...  
Keyword(s):  
Body Weight ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Weight Gain ◽  
Atlantic Salmon ◽  
Acid Composition ◽  
Feed Intake ◽  
Body Weight Gain

Growth and carcass characteristics of three lamb genotypes finished on the same level of feeding

2000 ◽  
Vol 70 (1) ◽  
pp. 51-61 ◽  
Author(s):  
L. O. W. McClintont ◽  
A. F. Carson
Keyword(s):  
Fatty Acids ◽  
Body Weight ◽  
Fatty Acid ◽  
Weight Gain ◽  
Polyunsaturated Fatty Acids ◽  
Body Weight Gain ◽  
Saturated Fatty Acids ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Ash Content

AbstractThis study investigated the efficiency of growth and the carcass characteristics of 24 Greyface (Border Leicester × Scottish Blackface), 24 Texel (12 purebred and 12 Texel × Texel-Greyface) and 24 Rouge (12 purebred and 12 Rouge × Rouge-Greyface) lambs finished on the same level of feeding. The efficiency of live-weight gain (kg/MJ) was higher in Greyface compared with Texel lambs (P< 0·01). The efficiency of empty body-weight gain (kg/MJ) was higher in Greyface (P< 0·01) and Rouge (P< 0·05) compared with Texel lambs. The efficiency of carcass gains (kg/MJ) tended to be higher in Greyface and Rouge compared with Texel lambs (P= 0·07). The efficiency of non-carcass component gains (kg/MJ) was also higher in Greyface compared with Texel lambs (P0·05). Carcass water, protein, lipid and ash gains did not vary significantly between the genotypes, however carcass energy gain tended to be higher in Greyface and Rouge compared with Texel lambs (P= 0·08). The relative proportions of water, protein, lipid and ash in carcass gains did not vary significantly between the genotypes. At the end of the experiment carcass water content was higher in Texel compared with Greyface lambs (P< 0·05) and carcass ash content was lower in Texel compared with Greyface (P< 0·01) and Rouge (P< 0·05) lambs. The concentration of saturated fatty acids was higher in Greyface compared with Rouge lambs (P< 0·001) and higher in Rouge compared with Texel lambs (P< 0·05). Monounsaturated fatty acid concentrations were higher in Rouge compared with Greyface lambs (P< 0·05) and higher in Texel compared with Rouge lambs (P< 0·001). Polyunsaturated fatty acid concentrations were higher in Rouge and Texel compared with Greyface lambs (P< 0·01). The ratio of n-6:n-3 fatty acids was lower in Rouge compared with Greyface lambs (P< 0·05).The efficiency of empty body gain was higher in male compared with female lambs (P< 0·05). Carcass water (P< 0·01) and protein (P< 0·05) gains were higher in male lambs. At the end of the experiment male carcasses contained a higher content of water (P< 0·05), protein (P< 0·01) and ash (P= 0·07), and a lower lipid (P< 0·05) and energy (P< 0·001) content. Carcass lipids from male lambs contained a higher concentration of polyunsaturated fatty acids (P< 0·001) and tended to contain a lower concentration of saturated fatty acids (P = 0·06).

Fatty acid composition of the common octopus, Octopus vulgaris, in relation to rearing temperature and body weight

Aquaculture ◽  
2006 ◽  
Vol 256 (1-4) ◽  
pp. 311-322 ◽  
Author(s):  
Helen Miliou ◽  
Myrsini Fintikaki ◽  
Marios Tzitzinakis ◽  
Triantaphyllos Kountouris ◽  
George Verriopoulos
Keyword(s):  
Body Weight ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Octopus Vulgaris ◽  
Rearing Temperature ◽  
The Common ◽  
Common Octopus

Effects of clover in the diet of grazed lambs on production and carcass composition

1993 ◽  
Vol 57 (2) ◽  
pp. 253-261 ◽  
Author(s):  
J. E. Vipond ◽  
G. Swift ◽  
R. C. Noble ◽  
G. Horgan
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Weight Gain ◽  
Acid Composition ◽  
Live Weight ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Live Weight Gain ◽  
Protein Retention ◽  
Tissue Lipids

AbstractThe effect of grazing clover on ewes and lambs was studied using nitrogen-fertilized grass (G) and grass/white clover pastures (GC) containing proportionately 0·18 clover. Carcasses of lambs grazed on GC were significantly heavier than carcasses of lambs grazed on G pastures. An interaction with weaning occurred. Carcasses from lambs grazed on GC for 53 days post weaning were 2·3 kg heavier (F < 0·01) but lambs slaughtered at weaning had similar carcass weights. Diet had no effect on relative joint components of carcasses. The effect of clover in the diet on carcass weight was attributed to higher levels of protein retention.Analysis of the fatty acid composition of intramuscular and subcutaneous and perirenal lipids indicated small but significant effects of diet. Lean tissue lipids of lambs grazing clover showed significant increases in C18:2 and reduced C20: 5 fatty acids. In tissue fats there were small increases in C14:0, C16:0 and C18:2 with reduced C18:1 content.Twin suckled lambs grazing GC for 94 days from turn-out in early April showed increased live-weight gain over lambs on G of 336 v. 287 g/day (s.e.d. 84; P < 0.001). Post weaning live-weight gain of lambs was 173 and 221 g/day on G and GC respectively. Sward height was maintained at 5.18 and 5.24 (s.e.d. 0.075) cm on G and GC paddocks by adjusting ewe numbers. GC pastures carried proportionately 0.82 of the stock on G pastures but output of lamb was similar at 1289 and 1247 kg/ha for G and GC respectively.Results showed that the production penalty of lower stocking rate associated with grass/clover v. grass fertilized with 190 kg nitrogen per ha was ameliorated by higher lamb live-weight gain and carcass weight without change in joint composition or nutritionally significant change in fatty acid composition of carcass tissues.

scholarly journals Flattened circadian glucocorticoid oscillations cause obesity due to increased lipid turnover and lipid uptake

2020 ◽  
Author(s):  
Stefan Tholen ◽  
Kyle M. Kovary ◽  
Atefeh Rabiee ◽  
Ewa Bielczyk-Maczyńska ◽  
Wenting Yang ◽  
...  
Keyword(s):  
Body Weight ◽  
Fatty Acid ◽  
Weight Gain ◽  
Lipid Accumulation ◽  
Body Weight Gain ◽  
List Type ◽  
Acid Uptake ◽  
Adipose Tissues ◽  
Brown Adipose ◽  
White Fat

ABSTRACTChronic stressors flatten circadian glucocorticoid (GC) oscillations, which has been correlated with negative health outcomes including obesity. How such flattened circadian GC oscillations affect metabolism and fat storage remains unknown. Here we investigated the consequences in mice and found that flattening of GC oscillations results not only in body weight gain, mainly due to increases in white fat depot mass, but also leads to hyperinsulinemia and fat accumulation in brown adipose tissue. A transcriptomic analysis of white and brown adipose tissues revealed that flattened GC oscillations cause dysregulated lipid metabolism with a prominent role of the fatty acid transporter Cd36. Indeed, Cd36 knockout mice are partially protected against the adverse effects of flattened GC oscillations including body weight gain and lipid accumulation in the brown and visceral white fat depots. These results provide insights on how conditions associated with flattened GC levels cause obesity.HIGHLIGHTSFlattening of circadian GC oscillations in mice, despite keeping mean circulating GC levels the same, results in body weight gain, lipid accumulation in both brown and white adipose tissues (BAT and WAT), and hyperinsulinemia.Markedly, flattening GC oscillations for short periods of three days is sufficient to increase lipid accumulation and mass in BAT, but longer periods are needed to increase lipid accumulation and mass in WAT.Transcriptomics analysis shows increased expression of a key regulator of fatty acid uptake, CD36, and knockout of CD36 partially protects cells from flattening GC oscillations

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