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Se Yeon Chang,오한진,Jae Woo An,송동철,조현아,Sehyun Park,Kyeongho Jeon,Sang Hun Park,박윤환,Gyu Tae Park,Se Hyuk Oh,최나영,최정석,Jin Ho Cho 한국가금학회 2023 韓國家禽學會誌 Vol.50 No.1
This study was conducted to investigate the effect of vitamin E and nanoparticle-sized vitamin E (NVE) in a broiler diet on growth performance, blood profiles, and meat quality. A total of 45 one-day-old Arbor Acres broilers (initialbody weight of 37.00 ± 0.41 g) were used in this experiment for 28 days. All broilers were randomly allocated into threedietary treatments in a randomized complete block design. The dietary treatments were as follows: a basal diet (CON), a basaldiet supplementing with 380 mg/kg of vitamin E (T1), and a basal diet supplementing with 380 mg/kg of NVE (T2). Eachtreatment had five replicates with three birds per cage. On days 0-7, the T1 and T2 groups significantly increased (P<0.05)body weight gain compared to the CON group. Also, the T1 and T2 groups significantly increased (P<0.05) vitamin E contentin blood and breast meat compared to the CON group. In shearing force, the T2 group showed a lower tendency (P=0.070)than the CON group. The T1 group showed a higher tendency (P=0.086) in the b* (yellowness) value than the T2 group. On day 7 after the end of the experiment, the T2 group significantly decreased (P<0.05) TBA values compared to the CONgroup. In conclusion, supplementation with vitamin E or NVE can improve broiler growth performance in the starter period,reduce TBA value through the antioxidant action of vitamin E, prevent lipid oxidation, and improve shelf life.
Effects of different levels of organic chromium and selenomethionine cocktails in broilers
Jae Woo An,김영광,Min Ho Song,최종석,오한진,장세연,송동철,조현아,Sehyun Park,Kyeongho Jeon,박윤환,Gyu Tae Park,Se Hyuk Oh,Yun A Kim,최나영,Jongchun Kim,김현범,조진호 한국축산학회 2023 한국축산학회지 Vol.65 No.6
Selenium (Se) is an essential trace mineral that plays an important role in physiological processes by regulating the antioxidant defense system and enhancing immunity. Chromium is an essential mineral involved in carbohydrate and lipid metabolism and also plays a role in maintaining normal insulin function. Based on these advantages, we hypothesized that the addition of selenomethionine (SeMet) and organic chromium (OC) to broiler diets would increase Se deposition, antioxidant capacity and immune response in meat. Therefore, this study analyzed the effects of OC and SeMet on growh performance, nutrients digestibility, blood profiles, intestinal morphology, meat quality characteristics, and taxonomic analysis of broilers. A total of 168 one-day-old broiler chicken (Arbor Acres) were randomly allotted to 3 groups based on the initial body weight of 37.33 ± 0.24 g with 7 replicate per 8 birds (mixed sex). The experiments period was 28 days. Dietary treatments were folloewd: Basal diets based on corn-soybean meal (CON), basal diet supplemented with 0.2 ppm OC and 0.2 ppm SeMet (CS4), and basal diet supplemented with 0.4 ppm OC and 0.4 ppm SeMet (CS8). Supplementation of OC and SeMet did not affect on growth performance, nutrient digestibility. However, CS8 supplementation increased in duodenum villus height and villus height : crypt depth, and increased in breast meat Se deposition. In addition, CS8 group showed higher uric acid and total antioxidant status than CON group. Taxonomic analysis at phylum level revealed that Proteobacteria and Firmicutes of CS4 and CS8 were lower than CON group. In genus level, the relative abundance of fecal Lactobacillus and Enterococcus of CS4 and CS8 groups were higher than CON group. In short, 0.4 ppm OC and 0.4 ppm SeMet supplementation to broiler diet supporitng positive gut microbiome change, also enhancing antioxidant capacity, and Se deposition in breast meat.
송동철,Ji Hwan Lee,Kangheung Kim,오한진,Jae Woo An,Se Yeon Chang,조현아,Sehyun Park,Kyeongho Jeon,Yohan Yoon,유윤정,Younghyun Cho,조진호 한국축산학회 2023 한국축산학회지 Vol.65 No.3
Escherichia coli (E. coli) and Salmonella enterica (SE) infections in pigs are major source associated with enteric disease such as post weaning diarrhea. The aim of this study was to investigate the effects of Pediococcus pentosaceus in weaned piglets challenged with pathogen bacteria. In Experiment.1 90 weaned piglets with initial body weights of 8.53 ± 0.34 kg were assigned to 15 treatments for 2 weeks. The experiments were conducted two trials in a 2 × 5 factorial arrangement of treatments consisting of two levels of challenge (challenge and non-challenge) with E. coli and SE, respectively and five levels of probiotics (Control, Lactobacillus plantarum [LA], Pediococcus pentosaceus SMFM2016-WK1 [38W], Pediococcus acidilactici K [PK], Lactobacillus reuteri PF30 [PF30]). In Experiment.2 a total of 30 weaned pigs (initial body weight of 9.84 ± 0.85 kg) were used in 4 weeks experiment. Pigs were allocated to 5 groups in a randomized complete way with 2 pens per group and 3 pigs per pen. Supplementation of LA and 38W improved (p < 0.05) growth performance, intestinal pathogen bacteria count, fecal noxious odor and diarrhea incidence. In conclusion, supplementation of 38W strains isolated from white kimchi can act as probiotics by inhibiting E. coli and SE.