Heat shock proteins (HSPs) consist of highly preserved stress that are expressed in response to stress. Two studies were carried out investigate whether HSP genes hair follicles from beef calves can be suggested as indicators heat (HS). In study 1, harvested three male Hanwoo (aged 172.2 ± 7.20 days) on six dates over the period 10 April 9 August 2017. These days provided varying temperature–humidity indices (THIs). 2, 16 169.6 4.60 days, with a BW 136.9 6.23 kg) maintained (4 per...

This study aimed to determine the effective dose of intravenous administration L-tryptophan (L-T) on gastrointestinal hormones (GIH) secretions and melatonin using Hanwoo cattle. Three steers (362 ± 23 kg) fitted with indwelling jugular vein catheters were assigned in a 3 × Latin square design. Treatments saline (control), 28.9 mg L-T/kg body weight (BW; low) 57.8 BW (high) L-T for 1 day 7 days adaptation. Samples collected after adaptation period at −60, 0, 30, 60, 90, 120, 150, 180, 240,...

This study was conducted to examine the effects of adding phytoncide oil extracted from Korean pine nut cone byproduct diet dairy cows on milk yield and compositions, fatty acid characteristics, complete blood count stress response. A total 74 Holstein were used for 30 days divided into two groups. Each group given a basal (C) or an experimental containing additives at 0.016% (T) in feed. The results showed that feeding had no effect yield. In addition, there observed composition, but ratio...

Breast muscle myopathies in broilers compromise meat quality and continue to plague the poultry industry. Broiler breast are characterized by impaired satellite cell (SC)-mediated repair, localized tissue hypoxia dysregulation of oxygen homeostasis have been implicated as contributing factors. The present study was designed test hypothesis that disrupts ability SC differentiate form myotubes, both which key components myofiber determine extent effects reversed restoration tension. Primary...

Objective This work was to find the correlation of alcohol dehydrogenase 1C (ADH1C) genotype with vitamin A reduction and carcass traits during restriction period. Methods In study 1, 60 Korean native steers were fed a diet (890 IU/kg) 8,000 IU 0 supplemental premix A/kg dry matter (DM) for control treatment group, respectively. The levels serum analyzed through high preparative performance liquid chromatography, ADH1C based on polymerase chain reaction-restriction fragment length...

This study was conducted to evaluate the effects of dietary phytoncides extracted from discarded Korean pine cones (Pinus koraiensis) on performance, egg quality, immune response and gut microflora in laying hens. A total 400 Hy-Line brown hens (50-week old) were allotted into four treatments including a control diet or supplemented with at 0.002%, 0.004% 0.008%. During 6 weeks experimental feeding, 0.008% improved production, feed conversion ratio (p < 0.05), but not intake, weight...

Abstract cis ‐9 , trans ‐11 Conjugated linoleic acid (CLA) is one of the most extensively studied CLA isomers due to its multiple isomer‐specific effects. However, molecular mechanisms ‐9, synthesis in ruminant mammary gland are still not clearly understood. This process may be mediated, a certain extent, by C18:1 regulated stearoyl‐CoA desaturase‐1 (SCD1) and/or syntrophic proteins. study aimed investigate effects TVA on SCD1‐mediated MAC‐T cells and potential mechanism. Results showed that...

This study investigated the effects of oral administration rumen-protected L-tryptophan (RPL-T) on duodenal starch digestion and gastrointestinal hormones (GIH) secretions using Hanwoo beef steers as animal models.Four (423±24 kg) fitted with ruminal cannulas were employed in a crossover design replicated twice. Treatments control (basal diet) RPL-T diet+191.1 mg/kg body weight [BW]) group. Blood samples collected to measure serum GIH levels pancreatic α-amylase activity at day 0, 1, 3, 5...

Summary This study was conducted to evaluate the effects of a combined mixture phytogenic extracts (garlic and coriander) probiotics on growth performance immune responses in laying hens based results vitro studies screen for immunomodulatory potency each ingredient. Several parameters were estimated using lamina propria leucocytes ( LPL s) isolated from rat intestinal mucosa tissue. Results show that enhanced s proliferation, increased ‐mediated cytotoxicity against YAC ‐1 tumour cells,...

Transdifferentiation (or activation) of hepatic stellate cells (HSCs) to myofibroblasts is a key event in liver fibrosis. Activated HSCs the tumor microenvironment reportedly promote progression. This study analyzed effect an inhibitor HSC activation, retinol-binding protein–albumin domain III fusion protein (R-III), on protumorigenic functions HSCs. Although conditioned medium collected from activated enhanced migration, invasion, and proliferation hepatocellular carcinoma cell line...

The aim of the present study was to investigate effects dietary trans fatty acids in mice. Following administration a 0.5/100 g diet trans‑9 octadecenoic acid (EA), trans‑11 vaccenic (TVA) or cis‑9, conjugated linoleic (CLA) for 4 weeks, body weights and liver, testis mediastinal adipose tissue (MAT) animals gradually decreased (P<0.05). EA group exhibited lowest levels magnesium triglycerides CLA increased villus length (P<0.05), while TVA low‑density lipoprotein tumor necrosis factor‑α...

This study aimed to explore genes associated with milk protein content in dairy cows and their relationships l-leucine. Ten primiparous Holstein (93.8 ± 11.56 milking days) fed the same diet were divided into two groups depending on contents (group High, 3.34 0.10%; group Low, 2.86 0.05%). Milk epithelial cells (MECs) isolated from collected morning differentially expressed proteins MECs explored by two-dimensional gel electrophoresis (2-DE). Then, mRNA expression of these was detected real...

Development and maintenance of healthy muscle fibers rely on the myogenic potential satellite cells (SC), stem that proliferate differentiate to form myotubes. Satellite are indispensable for post-hatch growth as well repair regeneration when myofibers damaged. Pectoralis major young broiler chicks (5-d olds) is a readily available source SC, which can be used in vitro elucidate cellular molecular mechanisms responsible broilers. Here, we optimized method efficient isolation, purification,...

The performance, health, and behavior of cattle are strongly affected by climate. objective this study was to investigate the relationship between blood parameters, rectal temperature, heart rate, rumination time in Korean native steers under cold stress. Data were collected from four (331.6 ± 6.46 kg BW 343.5 3.48 d age), which kept three designated temperature levels based on ambient temperature: HCS; high stress (−15 −10°C) period, MCS; medium (−10 −5°C) LCS; low (−5 2°C) period....

We aimed to investigate candidate proteins related long-term caloric restriction and feed efficiency in bovine longissimus dorsi muscle (LM). A total of 31 Korean native steers were randomly distributed ad libitum (n = 16) or group 15) conduct two feeding trials for 13 mon. In the first trial (10-18 mon age), fed with 100% (NEg 0.63 Mcal/kg) (80% previous day's intake group). second (18-23 energy value diet was 1.13 Mcal/kg NEg those 0.72 NEg. At endpoint this experiment, each group, 6...

Primary preadipocytes are a valuable experimental system for understanding the molecular pathways that control adipocyte differentiation and metabolism. Chicken embryos provide opportunity to isolate from earliest stage of adipose development. This primary cell can be used identify factors influencing preadipocyte proliferation adipogenic differentiation, making them model studies related childhood obesity excess fat deposition in poultry. The rapid growth postnatal tissue effectively wastes...

Primary preadipocytes are a valuable experimental system for understanding the molecular pathways that control adipocyte differentiation and metabolism. Chicken embryos provide opportunity to isolate from earliest stage of adipose development. This primary cell can be used identify factors influencing preadipocyte proliferation adipogenic differentiation, making them model studies related childhood obesity excess fat deposition in poultry. The rapid growth postnatal tissue effectively wastes...