scholarly journals Sensory Attributes, Microbial Activity, Fatty Acid Composition and Meat Quality Traits of Hanwoo Cattle Fed a Diet Supplemented with Stevioside and Organic Selenium

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 129
Author(s):  
Yong Geum Shin ◽  
Dhanushka Rathnayake ◽  
Hong Seok Mun ◽  
Muhammad Ammar Dilawar ◽  
Sreynak Pov ◽  
...  

This study examined the effects of stevioside (S) and organic selenium (O-Se) supplementation on the sensory attributes, microbial activity, fatty acid composition, and meat quality traits of Hanwoo cattle (Korean native cattle). Twenty-four Hanwoo cattle (663 ± 22 kg body weight) were assigned to two dietary treatments for 8 months: control diet and 1% stevioside with 0.08% organic selenium supplemented diet. S and O-Se inclusion in the diet enhanced the final body weight, weight gain, and carcass crude protein (p < 0.05). Moreover, supplementation with S and O-Se had a significant effect on lowering the drip loss and shear force and enhanced the a* (redness) of the longissimus dorsi muscle (p < 0.05). The inclusion of dietary S and O-Se improved the sum of the polyunsaturated fatty acid (ΣPUFAs) content of the meat, and the oxidative status (TBARS) values during second week of storage decreased by 42% (p < 0.05). On the other hand, the microbial count tended to decrease (7.62 vs. 7.41 log10 CFU), but it was not significant (p > 0.05), and all sensory attributes were enhanced in the S and O-Se supplemented diet. Overall, these results suggest that supplementation of the ruminant diet with stevioside and organic selenium improves the growth performance, carcass traits, and meat quality with enriched PUFAs profile and retards the lipid oxidation during the storage period in beef.

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2438
Author(s):  
Eugeniusz R. Grela ◽  
Małgorzata Świątkiewicz ◽  
Mariusz Florek ◽  
Maciej Bąkowski ◽  
Grzegorz Skiba

In this experiment, we investigated the effect of the supplementation of probiotic bacteria in the diet with inulin or dried Jerusalem artichoke tubers on the performance, meat quality, and fatty acid composition in the meat and backfat of fatteners. One hundred and forty-four crossbred pigs (PIC × Penarlan P76) were divided into six groups and fattened from 30 to 114 kg. The meat proximate composition, pH, color, texture, shear force, water-holding capacity, sensory attributes, and thiobarbituric-acid-reactive substances were measured. Normal post-mortem meat glycolysis was demonstrated and no meat defects were present. The chemical constituents in muscle tissues were similar, except for intramuscular fat (IMF). The addition of the prebiotics resulted in a higher IMF level, whereas a significantly lower content was found after the probiotic supplementation. Meat from both prebiotic groups was lighter, less red, and more yellow and showed a higher hue angle. The addition of both prebiotics significantly improved the antioxidant status of meat (by approximately 16% and 18%) and the water-holding capacity (less free water and higher M/T ratios), but reduced shear force (by 17%, p ≤ 0.05) and hardness (by 39% and 35%, respectively, p ≤ 0.05). The addition of the prebiotics and probiotics had no effect on any of the evaluated sensory attributes.


Genes ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 1062
Author(s):  
Bryan Irvine Lopez ◽  
Kier Gumangan Santiago ◽  
Donghui Lee ◽  
Younggyu Cho ◽  
Dajeong Lim ◽  
...  

Meat quality and carcass characteristics have gained the attention of breeders due to their increasing economic value. Thus, this study investigated the genomic prediction efficiencies of genomic best linear unbiased prediction (GBLUP) and single-step GBLUP (ssGBLUP) for traits associated with meat quality, sensory characteristics, and fatty-acid composition. A total of 1237 Duroc finishing pigs with 654 individuals genotyped using the Illumina Porcine SNP 60k marker panel were used in this study. Prediction accuracy and bias for GBLUP and ssGBLUP were evaluated using a five-replicates of five-fold cross-validation. Estimation of genetic parameters for traits associated with meat quality, including lightness, yellowness, redness, pH at 24 h post-mortem, moisture content, fat content, water-holding capacity, cooking loss except for shear force (0.19), as well as fatty-acid composition (palmitic, stearic, oleic, linoleic, and linolenic fatty acids), revealed moderate to high heritability estimates ranging from 0.25 to 0.72 and 0.27 to 0.50, respectively, whereas all traits related to sensory characteristics (color, flavor, tenderness, juiciness, and palatability) showed low heritability estimates ranging from 0.08 to 0.14. Meanwhile, assessment of genomic prediction accuracy revealed that ssGBLUP exhibited higher prediction accuracy than GBLUP for meat quality traits, fatty-acid composition, and sensory characteristics, with percentage improvements ranging from 1.90% to 56.07%, 0.73% to 23.21%, and 0.88% to 11.85%, respectively. In terms of prediction bias, ssGBLUP showed less bias estimates than GBLUP for the majority of traits related to meat quality traits, sensory characteristics, and fatty-acid composition of Duroc meat. In this study, ssGBLUP outperformed GBLUP in terms of prediction accuracy and bias for the majority of traits. Through selection and breeding, our findings could be used to promote meat production with improved nutritional value.


2021 ◽  
Vol 19 (3) ◽  
pp. e0608-e0608
Author(s):  
Wendy M. Rauw

Aim of the study: To evaluate the consequences for pork quality traits of replacing soybean meal with Narbon vetch in pig diets. Area of study: Castilla-Leon, Spain. Material and methods: 48 Duroc × Iberian barrows were fed diets with 0% (V0), 5% (V5), 10% (V10) and 20% (V20) inclusion of Narbon vetch. Pork quality traits investigated were 1) intramuscular fat, protein and moisture content of fresh loin, 2) fatty acid composition of subcutaneous fat, and 3) sensory attributes (Triangle test and a Simple Difference Test with a non-trained taste panel) of cured loin. Main results: Inclusion of Narbon vetch in the diet showed no significant effect on intramuscular fat, protein and moisture in fresh loin samples. Stearic acid was higher in subcutaneous fat of V5 than in V0 and V10 (p < 0.05), and oleic acid was higher in V10 than in V0, V5 and V20 (p < 0.05); no other differences in fatty acid composition were observed. Taste panelists tended to be able to distinguish V10 from V0 cured loins (p < 0.10), and were able to distinguish V20 from V0 loins (p < 0.05), in particular due to a perceived difference in taste, texture and marbling. No differences in intensity of the texture, marbling, aroma and color of cured loins were found between V0 and V5. Research highlights: Inclusion of Narbon vetch in pig diets did not significantly affect fresh loin composition or fatty acid composition of subcutaneous fat. Consumers perceived a difference in sensory characteristics of cured loin with replacement of soybean meal with Narbon Vetch, but they did not characterize this as more favorable.


2009 ◽  
Vol 120 (1-2) ◽  
pp. 96-102 ◽  
Author(s):  
D.H. Kim ◽  
P.N. Seong ◽  
S.H. Cho ◽  
J.H. Kim ◽  
J.M. Lee ◽  
...  

animal ◽  
2020 ◽  
Vol 14 (9) ◽  
pp. 1969-1975 ◽  
Author(s):  
M. Banaszak ◽  
J. Kuźniacka ◽  
J. Biesek ◽  
G. Maiorano ◽  
M. Adamski

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