Effect of reducing dietary protein and lysine on growth performance, carcass characteristics, intramuscular fat, and fatty acid profile of finishing barrows1

2014 ◽  
Vol 92 (1) ◽  
pp. 129-140 ◽  
Author(s):  
N. Tous ◽  
R. Lizardo ◽  
B. Vilà ◽  
M. Gispert ◽  
M. Font-i-Furnols ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Dietary Protein ◽  
Carcass Characteristics ◽  
Intramuscular Fat

scholarly journals Effects of Supplements Differing in Fatty Acid Profile to Late Gestational Beef Cows on Steer Progeny Finishing Phase Growth Performance, Carcass Characteristics, and mRNA Expression of Myogenic and Adipogenic Genes

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1904
Author(s):  
Taoqi Shao ◽  
Joshua C. McCann ◽  
Daniel W. Shike
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Mrna Expression ◽  
Fatty Acid Profile ◽  
Carcass Characteristics ◽  
Beef Cows ◽  
Feed Ratio ◽  
Phase Growth ◽  
Pufa Supplementation ◽  
Relative Mrna Expression

The objective was to investigate the effects of feeding late gestational beef cows supplements differing in fatty acid profile on steer progeny finishing phase growth performance, carcass characteristics, and relative mRNA expression of myogenic and adipogenic genes. Seventy Angus-cross steers (initial body weight [BW] 273 ± 34 kg) born from dams supplemented with either 155 g DM/d EnerGII (CON, rich in palmitic and oleic acids) or 80 g DM/d Strata + 80 g DM/d Prequel (PUFA, rich in linoleic acid, eicosapentaenoic acid, and docosahexaenoic acid) for the last 77 ± 6 d prepartum were used. Longissimus muscle and subcutaneous adipose biopsies were collected to evaluate relative mRNA expression of genes related to myogenesis and adipogenesis. Steers were slaughtered at 423 ± 6 d of age. No treatment × time interaction or treatment effect (p ≥ 0.21) was detected for steer finishing phase BW, while steers from PUFA supplemented dams tended (p = 0.06) to have a greater gain to feed ratio (G:F). Neither carcass characteristics nor relative mRNA expression was different (p ≥ 0.11). In conclusion, late gestation PUFA supplementation tended to increase steer progeny finishing phase G:F, but had no effects on finishing phase BW, carcass characteristics, or relative mRNA expression during the finishing phase.

scholarly journals Effect of CLA supplementation to low-protein diets on the growth performance, carcass characteristics, plasma urea nitrogen concentration, and fatty acid profile in the meat of pigs

2014 ◽  
Vol 57 (5) ◽  
pp. 742-754 ◽  
Author(s):  
Manuel Martínez-Aispuro ◽  
José Luis Figueroa-Velasco ◽  
Vicente Zamora-Zamora ◽  
José Luis Cordero-Mora ◽  
Carlos Narciso-Gaytán ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Nitrogen Concentration ◽  
Carcass Characteristics ◽  
Urea Nitrogen ◽  
Plasma Urea ◽  
Low Protein ◽  
Protein Diets

Effect of enriched-chromium yeast on growth performance, carcass characteristics and fatty acid profile in finishing Rambouillet lambs

2020 ◽  
Vol 188 ◽  
pp. 106118 ◽  
Author(s):  
M.A. Rodríguez-Gaxiola ◽  
I.A. Domínguez-Vara ◽  
R. Barajas-Cruz ◽  
I. Contreras-Andrade ◽  
E. Morales-Almaráz ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Carcass Characteristics ◽  
Chromium Yeast

scholarly journals Effects of Caponization on Growth Performance, Carcass and Meat Quality of Mos Breed Capons Reared in Free-Range Production System

2016 ◽  
Vol 16 (3) ◽  
pp. 909-929 ◽  
Author(s):  
Daniel Franco ◽  
Mirian Pateiro ◽  
Diego Rois ◽  
Jose Antonio Vázquez ◽  
José Manuel Lorenzo
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Growth Performance ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Production System ◽  
Saturated Fatty Acids ◽  
Intramuscular Fat ◽  
Growth Equation ◽  
Free Range

AbstractThe effects of caponization on growth performance, carcass characteristics, meat quality and fatty acid profile of breast and drumstick of Mos and Sasso genotypes, reared in free-range production system were examined. A total of 47 birds of Mos breed (19 Castrated and 25 Entire) and 37 of Sasso X-44 (18 Castrated and 19 Entire) slaughtered at 32 weeks were used in this trial. The growth of broilers and the differences between genotypes and caponization effects were modelled by Weibull-growth equation. Capon’s growth was higher than that obtained by roosters and Sasso weight was greater than Mos results (P<0.05). For both genotypes the chemical composition of breast and drumstick cuts showed significantly higher values of intramuscular fat (P<0.0001) and lesser values of moisture (P<0.0001) in capons in comparison with intact ones. In Mos breed, capons exhibited significantly (P<0.0001) higher values of breast and drumstick luminosity and yellowness, as well as lower values of redness. Regarding Warner-Braztler test (WB), there were no significant differences (P>0.05) by caponization effect, but hardness measured using textural profile analysis was lesser in meat from capons. Finally castration of animals led to important modifications in the intramuscular fat because meat from capons showed significantly lower values for total saturated fatty acids (SFA) and higher polyunsaturated fatty acids (PUFA ). Nutritional indices were also more favorable in capon’s meat, so overall fatty acid profile of capons was desirable from the viewpoint of human nutrition.

Effects of increasing dietary fat inclusion from different sources on growth performance, carcass and meat traits, and pork nutritional profile quality

2020 ◽  
Author(s):  
Vivian Vezzoni Almeida ◽  
Julia Pereira Martins da Silva ◽  
Ariana Nascimento Meira ◽  
Gabriel Costa Monteiro Moreira ◽  
Julia Dezen Gomes ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Intramuscular Fat ◽  
Atherogenic Index ◽  
Human Consumption ◽  
Total N ◽  
Pufa Ratio ◽  
Commercial Diet

Abstract Background There has been an increased interest in nutritional strategies to manipulate the fatty acid profile of pigs. Dietary regimens involving the use of oils that are high in monosaturated fatty acid (MUFA), primarily oleic acid (OA), such as canola oil (CO), as well as in omega (n)-3 polyunsaturated fatty acid (PUFA), which are found in fish oil (FO), have been investigated aiming healthier fatty acid profile cuts, with a higher ratio of n-3 to n-6 fatty acids. Therefore, the effects of including 3% soybean oil (SO), CO, or FO in growing-finishing pig diets vs. feeding a standard commercial diet with 1.5% SO (control) on growth performance, carcass traits, meat quality, consumer acceptability, and intramuscular fatty acid composition of the longissimus lumborum (LL) muscle were evaluated. Results Dietary treatments had no effect on overall growth performance and pig carcasses. Although loins from pigs fed diets containing either 3% SO or CO showed a reduction (P = 0.05) in Warner-Bratzler shear force, only the addition of 3% SO to pig diets resulted in loin chops that were rated higher (P < 0.001) for consumer overall liking. Adding either 3% SO or CO increased (P < 0.01) the percentages of OA and total MUFA in the LL intramuscular fat compared to control- or FO-fed pigs. However, intramuscular fat from 3% SO- or CO-fed pigs had the lowest (P < 0.01) proportion of total n-3 PUFA than control- or FO-fed pigs. Including 3% fat, regardless of source, reduced (P < 0.01) total PUFA, total n-6 PUFA, and PUFA:saturated fatty acid (SFA) ratio than control-fed pigs. Dietary FO inclusion decreased (P < 0.01) n-6:n-3 PUFA ratio, but also increased total SFA (P < 0.01) and atherogenic index (P = 0.02) in the LL intramuscular fat. Conclusions Although adding 3% CO or FO to pig diets provided slight nutritional benefits to consumers in terms of MUFA and long chain n-3 PUFA contents, respectively, formulating growing-finishing diets with 1.5% SO was adequate enough in terms of LL intramuscular fatty acids composition for high quality meat destined to human consumption.

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