Comparison of genomic predictions for carcass and reproduction traits in Berkshire, Duroc and Yorkshire populations in Korea.

Objective: A genome-based best linear unbiased prediction (GBLUP) method was applied to evaluate accuracies of genomic estimated breeding value (GEBV) of carcass and reproductive traits in Berkshire, Duroc and Yorkshire populations in Korean swine breeding farms.

Methods: The data comprised a total of 1,870, 696, and 1,723 genotyped pigs belonging to Berkshire, Duroc and Yorkshire breeds, respectively. Reference populations for carcass traits consisted of 888 Berkshire, 466 Duroc, and 1,208 Yorkshire pigs, and those for reproductive traits comprised 210, 154, and 890 dams for the respective breeds.

Erratum to: Influence of Probiotics-Friendly Pig Production on Meat Quality and Physicochemical Characteristics.

[This corrects the article DOI: 10.5851/kosfa.2018.

Effect of Kaempferol on Cyclooxygenase 2 (Cox2) and Cytosolic Phospholipase A2 (cPLA2) Protein Expression in BALB/c Mice.

Kaempferol, a phytochemical found in many edible plants, is known to alleviate diseases such as cancer, allergy, and inflammation. The objective of this study was to investigate whether kaempferol could reduce omega-6 and ovalbumin-mediated allergic reactions at lung and trachea in BALB/c mice. Mice were allocated into five groups: 1) control group (CON); 2) positive control group with orally administration of omega-6 (POS); 3) bovine serum albumin (BSA) sensitization group (with BSA injection and ovalbumin inhalation); 4) BSA+K10 group: BSA injection, 10 μg/g of kaempferol administration and ovalbumin inhalation; and 5) BSA+K20 group: BSA injection, 20 μg/g of kaempferol administration and ovalbumin inhalation.

Modulatory effect of linoleic and oleic acid on cell proliferation and lipid metabolism gene expressions in primary bovine satellite cells.

This study was performed to elucidate the effects of linoleic acid (LA), oleic acid (OA) and their combination (LA + OA) on cell proliferation, apoptosis, necrosis, and the lipid metabolism related gene expression in bovine satellite cells (BSCs), isolated from bovine muscles. Cell viability was significantly increased with the OA and LA treatment. Furthermore, LA + OA enhanced cell proliferation in a dose-dependent manner (10 to 100 µM), whereas it lowered at 250 µM.

Fabrication of nanofiber coated with l-arginine via electrospinning technique: a novel nanomatrix to counter oxidative stress under crosstalk of co-cultured fibroblasts and satellite cells.

The objective of this study was to synthesize and characterize novel polyurethane (PU)-nanofiber coated with l-arginine by electrospinning technique. This study determined whether l-arginine conjugated with PU-nanofiber could stimulate cell proliferation and prevent HO-induced cell death in satellite cells co-cultured with fibroblasts isolated from Hanwoo (Korean native cattle). Our results showed that l-arginine conjugated with PU nanofiber could reduce cytotoxicity of co-cultured satellite cells.

Effect of long chain fatty acids on triacylglycerol accumulation, fatty acid composition and related gene expression in primary cultured bovine satellite cells.

This study was conducted to determine the effects of long chain fatty acids (LCFAs) on triacylglycerol (TAG) content, as well as on genes associated with lipid synthesis and fatty acid composition in bovine satellite cells. Both saturated (palmitic and stearic) and unsaturated (oleic and linoleic) fatty acids stimulated the TAG accumulation at a concentration of 100 µM and oleate increased it significantly more than stearate and palmitate. The results revealed that the lipid droplet formation was markedly stimulated by linoleate and oleate at 100 µM.

Influence of Probiotics-Friendly Pig Production on Meat Quality and Physicochemical Characteristics.

In this study, the dietary effects of probiotics with a liquid application system on meat quality and physicochemical characteristics of pigs were evaluated. A total of 80 Landrace×Yorkshire×Duroc (LYD) 3-way crossbred pigs (average age 175±5 d) were assigned to a conventional farm and a probiotics farm equipped with a liquid probiotics application system (40 pigs in each farm). The two treatments were: CON (diet without probiotics) and PRO (diet with probiotics).

Mechanistic aspects of biologically synthesized silver nanoparticles against food- and water-borne microbes.

In the present study, silver nanoparticles (AgNPs) synthesized from aqueous leaves extract of Malva crispa and their mode of interaction with food- and water-borne microbes were investigated. Formation of AgNPs was conformed through UV-Vis, FE-SEM, EDS, AFM, and HR-TEM analyses. Further the concentration of silver (Ag) in the reaction mixture was conformed through ICP-MS analysis.

Studies on Intramuscular Fat Percentage in Live Swine Using Real-time Ultrasound to Determine Pork Quality.

In the modern pork industry, selection of high intramuscular fat (IMF) in pigs is necessary to improve pork quality. Ultrasound has been used previously to predict subcutaneous fat thickness and IMF in the longissimus muscles of line pigs and Real-time ultrasound has also been reported as a reliable method for estimating IMF in live pigs. So we estimate the correlation between meat quality traits and IMF percentage to investigate the possibility of utilizing real-time ultrasound technology for predicting IMF percentage in line pigs to improve pork quality.

Genetic traceability of black pig meats using microsatellite markers.

Pork from Jeju black pig (population J) and Berkshire (population B) has a unique market share in Korea because of their high meat quality. Due to the high demand of this pork, traceability of the pork to its origin is becoming an important part of the consumer demand. To examine the feasibility of such a system, we aim to provide basic genetic information of the two black pig populations and assess the possibility of genetically distinguishing between the two breeds.

Effects of Ripening Conditions on the 'Lomo embuchado' Sausage Quality.

The objective of this study was to investigate the effects of two different ripening durations, with, or without adding rosemary powder, on Lomo embuchado (LEO) sausage quality. All LEOs were ripened for two different durations, 45 or 60 d, with, or without the addition of rosemary powder, as follows: 1) LEO ripened for 45 d (LER45), 2) LEO ripened for 60 d (LER60), 3) rosemary LEO ripened for 45 d (RLE45), and 4) rosemary LEO ripened for 60 d (RLE60). Significant differences were observed in both moisture and ash content, with higher moisture and less ash content in LER45 (p<0.