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  1. Article ; Online: Effect of Providing Environmental Enrichment into Aviary House on the Welfare of Laying Hens

    Jiseon Son / Woo-Do Lee / Hee-Jin Kim / Bo-Seok Kang / Hwan-Ku Kang

    Animals, Vol 12, Iss 1165, p

    2022  Volume 1165

    Abstract: This study aimed to determine the effects of providing environmental enrichment materials—pumice stone and alfalfa hay—to laying hens in the aviary system. A total of 2196 40-week-old Hy-Line Brown laying hens were randomly allotted to three treatment ... ...

    Abstract This study aimed to determine the effects of providing environmental enrichment materials—pumice stone and alfalfa hay—to laying hens in the aviary system. A total of 2196 40-week-old Hy-Line Brown laying hens were randomly allotted to three treatment groups: (1) no enrichment (control; CON), (2) enrichment with pumice stone (PS), and (3) enrichment with alfalfa hay (HAY). Each treatment comprised four replicates of 183 hens each, and four of the same materials were provided per replicate. The experiment lasted for 26 weeks. Feed and water were provided ad libitum. As a result, the PS and HAY groups demonstrated increased egg production ( p < 0.001). The HAY group showed a reduced rate of mislaid eggs ( p < 0.01) and produced low egg weight and pale-yellow yolk ( p < 0.05). Both enrichment materials decreased blood creatinine (CRE) or lactate dehydrogenase (LDH) in the blood and resulted in a significantly lower corticosterone (CORT) level ( p < 0.05). However, the feather condition scores for the laying hens were similar across all treatments ( p > 0.05). In summary, although pumice stone and alfalfa hay are effective in alleviating stress and improving the production of laying hens, additional environmental improvement studies are needed to contribute to reducing pecking behaviors in poultry farming.
    Keywords laying hen ; aviary ; feather pecking ; enrichment ; pumice stone ; alfalfa hay ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
    Subject code 630
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Effect of Dietary Supplementation of Fermented Pine Needle Extract on Productive Performance, Egg Quality, and Serum Lipid Parameters in Laying Hens

    Damini Kothari / Jong-Seok Oh / Ju-Hee Kim / Woo-Do Lee / Soo-Ki Kim

    Animals, Vol 11, Iss 1475, p

    2021  Volume 1475

    Abstract: This study aimed to investigate the supplemental effects of fermented pine ( Pinus densiflora ) needle extract (FPNE) in laying hen diets on productive performance, egg quality, and serum lipid metabolites. A total of 108 40-week-old Hy-line brown laying ...

    Abstract This study aimed to investigate the supplemental effects of fermented pine ( Pinus densiflora ) needle extract (FPNE) in laying hen diets on productive performance, egg quality, and serum lipid metabolites. A total of 108 40-week-old Hy-line brown laying hens were randomly assigned to one of the three dietary treatment groups: (1) basal diet + 0 mL FPNE/kg diet (CON), (2) basal diet + 2.5 mL FPNE/kg diet (T1), or (3) basal diet + 5 mL FPNE/kg diet (T2) for 6 weeks. Each group consisted of four replicates of nine hens each. Feed and water provided ad libitum. Results showed that dietary supplementation of FPNE increased egg production percentage (linear, p < 0.01 and quadratic, p < 0.05), egg mass (linear, p < 0.05), and feed intake (linear, p < 0.05) during the entire experimental period. In addition, dietary inclusion of FPNE significantly increased the eggshell color (linear, p < 0.01), egg yolk color (quadratic, p < 0.01), and eggshell breaking strength (linear, p < 0.05 and quadratic, p < 0.05) while the Haugh unit decreased (quadratic, p < 0.05). However, serum lipid profile did not differ among the dietary treatments ( p > 0.05). Notably, antioxidant activity of egg yolk was improved by significantly decreasing the malondialdehyde content in egg yolks after 6 weeks of storage (linear, p < 0.001 and quadratic, p < 0.05). In summary, dietary inclusion of FPNE could improve laying performance and the antioxidant capacity of eggs.
    Keywords laying hen ; egg production ; antioxidant capacity ; phytogenic feed additive ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
    Subject code 630
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Microbiome Changes in Layer Pullets Reared in Floor Pens along the Growth Period

    Hee-Jin Kim / Hyun-Soo Kim / Yeon-Seo Yun / Hyekyoung Shin / Woo-Do Lee / Jiseon Son / Eui-Chul Hong / Ik-Soo Jeon / Hwan-Ku Kang

    Life, Vol 13, Iss 12, p

    2023  Volume 2302

    Abstract: The gastrointestinal tract microbiome is essential for regulating nutrient absorption, gut immune function, and host growth and development. In the present study, we characterized the development of ileum and cecum microbiota in pullets throughout the ... ...

    Abstract The gastrointestinal tract microbiome is essential for regulating nutrient absorption, gut immune function, and host growth and development. In the present study, we characterized the development of ileum and cecum microbiota in pullets throughout the rearing period, encompassing a period from the day of hatching to 18 weeks of age. The growth performance and intestinal microbiome (ileum and cecum) of pullets were analyzed at 1, 5, 11, and 18 weeks of age. The richness of the ileum and cecum bacterial communities (alpha diversity) was higher in pullets at 18 weeks of age than in those at 1 and 5 weeks of age. Microbiota from weeks 1, 5, 11, and 18 were distinctly grouped in a NMDS plot, representing beta diversity within the ileum. However, the results for cecum microbiota did not reveal evident separation among the different age groups in the weighted UniFrac. In conclusion, our findings demonstrate variations and diversification in ileum and cecum microbiota across different rearing stages in pullets. These insights have the potential to inform the development of nutritional strategies that promote gut health and contribute to the improved development of pullets.
    Keywords gut microbiome ; pullet ; floor ; layer hen ; rearing period ; Science ; Q
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Potential Probiotic Acceptability of a Novel Strain of Paenibacillus konkukensis SK 3146 and Its Dietary Effects on Growth Performance, Intestinal Microbiota, and Meat Quality in Broilers

    Seung-Gyu Moon / Damini Kothari / Woo-Do Lee / Jong-Il Kim / Kyung-Il Kim / Yong-Gi Kim / Gun-Whi Ga / Eun-Jip Kim / Soo-Ki Kim

    Animals, Vol 12, Iss 1471, p

    2022  Volume 1471

    Abstract: This study evaluates the in vitro probiotic characteristics of P. konkukensis sp. nov. SK-3146, which was isolated from animal feed, and its dietary effects on growth performance, intestinal characteristics, intestinal microbiota, and meat quality in ... ...

    Abstract This study evaluates the in vitro probiotic characteristics of P. konkukensis sp. nov. SK-3146, which was isolated from animal feed, and its dietary effects on growth performance, intestinal characteristics, intestinal microbiota, and meat quality in broilers. In vitro experiments revealed that P. konkukensis was non-hemolytic with variable antibiotic susceptibility, and acid as well as bile tolerance. To assess the effect of P. konkukensis on broilers, a total of four hundred eighty 1-day-old Ross 308 broiler chicks were allocated to 3 treatment groups with 4 replicates of 40 birds each; the negative control group was fed a basal diet without any feed additives (NC), the positive control group was fed a basal diet containing 0.01% enramycin (PC), and the experimental group was fed a basal diet containing P. konkukensis bacterial culture (PK) at 10 4 CFU/g of the diet based on bacterial count. The experiment lasted for 35 days. Results indicated that there were no significant differences in any growth performance parameters among the dietary treatments ( p > 0.05). In addition, the inclusion of P. konkukensis in the broilers’ diet did not affect meat cooking loss, color, and pH but increased the relative weight of breast meat ( p < 0.05). The PK group showed heavier intestinal weight and shorter intestinal length than the NC group ( p < 0.05). The ratio of the intestinal weight to length of jejunum was the highest in the PK group ( p < 0.05). The PK group showed increased counts of Streptococcus thermophilus ( p < 0.05) with no adverse effects of P. konkukensis on other intestinal microbiota in the jejunum. This study implies that P. konkukensis might have the potential to be applied as a probiotic feed additive in poultry.
    Keywords Paenibacillus konkukensis ; probiotic ; feed additive ; dietary ; broiler ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
    Subject code 610
    Language English
    Publishing date 2022-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Optimization of Chinese Chive Juice as a Functional Feed Additive

    Kai-Min Niu / Damini Kothari / Woo-Do Lee / Sangbuem Cho / Xin Wu / Soo-Ki Kim

    Applied Sciences, Vol 10, Iss 6194, p

    2020  Volume 6194

    Abstract: Allium tuberosum , commonly known as the Chinese chive (CC) is often used as a traditional medicine in East Asia for its health benefits. To explore the potential of CC as a functional feed additive, antibacterial and antioxidant assays, untargeted ... ...

    Abstract Allium tuberosum , commonly known as the Chinese chive (CC) is often used as a traditional medicine in East Asia for its health benefits. To explore the potential of CC as a functional feed additive, antibacterial and antioxidant assays, untargeted metabolomics, and a 2 × 3 × 3 fractional factorial design (FFD) were conducted. In the present study, CC displayed stable DPPH radical scavenging activity with constant total phenolic content, however, the total flavonoid contents and the antibacterial activities were attenuated following heat treatment. The FFD results identified the solid content (SBM) as the main determinant of the antibacterial activity and moisture content of the CC products along with two other factors: drying time and temperature. Two CC products manufactured with 30% (w/v) SBM with 3 h drying at 80 °C and 20% (w/v) SBM with 8 h drying at 60 °C obtained the maximum antibacterial activity and least moisture content (<5%). Liquid chromatography-tandem mass spectrometry based multivariate analysis revealed 14 changed compounds in the non-heated and heated CC including flavonols, sinapinic acid, and lysophospholipids, which might affect the functionality. In conclusion, we propose an empirical approach to the pre-processing of CC juice that is suitable for blending in feed and simultaneously retaining its bioactivities.
    Keywords antibacterial activity ; antioxidant activity ; Allium tuberosum ; fractional factorial design ; Metabolites ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 660
    Language English
    Publishing date 2020-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Effect of dietary supplementation of a phytogenic blend containing , , and on productivity, egg quality, and health parameters in laying hens

    Seung-Gyu Moon / Sung-Kwang Lee / Woo-Do Lee / Kai-Min Niu / Won-Uk Hwang / Jong-Seok Oh / Damini Kothari / Soo-Ki Kim

    Animal Bioscience, Vol 34, Iss 2, Pp 285-

    2021  Volume 294

    Abstract: Objective This study was conducted to investigate the supplementary effect of a phytogenic blend (SPA: a mixture containing fermented Schisandra chinensis pomace, fermented Pinus densiflora needle extract, and Allium tuberosum powder in the ratio of 2:2: ... ...

    Abstract Objective This study was conducted to investigate the supplementary effect of a phytogenic blend (SPA: a mixture containing fermented Schisandra chinensis pomace, fermented Pinus densiflora needle extract, and Allium tuberosum powder in the ratio of 2:2:1) on egg production, egg quality, blood constituents, and visceral organs in laying hens. Methods A total of 135 Hy-line brown laying hens (48-wk-old) were randomly allocated to three dietary treatments with 5 replicates of 9 hens. The control group (CON) was fed a basal diet (no exogenous SPA addition) and the experimental groups were fed the basal diet containing SPA at the level of 0.1% and 0.3% for 6 weeks. Results The feed intake was significantly improved in SPA supplemented groups as compared with the control (p<0.05). However, egg production, daily egg mass, and feed conversion ratio were not different among the dietary treatments (p>0.05). For egg quality traits, only Haugh unit (HU) was significantly improved in SPA (0.3%) (p<0.05) as compared with other groups. However, HU was not affected during 4-wk of storage at 18°C among the dietary treatments (p>0.05). Furthermore, SPA supplementation did not affect the blood biochemical constituents except for the phosphate content, which was significantly higher in SPA groups than the CON group (p<0.05). There were no significant differences in visceral organ characteristics and immune indicators (immunoglobulin A [IgA], IgG, and IgM) in SPA or CON groups. Conclusion This study suggested that the supplementation of SPA may have beneficial effects on feed intake and egg quality in laying hens.
    Keywords laying hens ; fermented pomace ; needle extract ; feed additive ; Zoology ; QL1-991
    Subject code 630
    Language English
    Publishing date 2021-02-01T00:00:00Z
    Publisher Asian-Australasian Association of Animal Production Societies
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Superiority of coarse eggshell as a calcium source over limestone, cockle shell, oyster shell, and fine eggshell in old laying hens

    Woo-Do Lee / Damini Kothari / Kai-Min Niu / Jeong-Min Lim / Da-Hye Park / Jaeeun Ko / Kidong Eom / Soo-Ki Kim

    Scientific Reports, Vol 11, Iss 1, Pp 1-

    2021  Volume 10

    Abstract: Abstract Chicken eggshell (ES) waste is a rich source of calcium carbonate (CaCO3); however, the potential of ES as dietary calcium (Ca) in old laying hens has not been explored. This study compared the effects of feeding limestone, cockle shell, oyster ... ...

    Abstract Abstract Chicken eggshell (ES) waste is a rich source of calcium carbonate (CaCO3); however, the potential of ES as dietary calcium (Ca) in old laying hens has not been explored. This study compared the effects of feeding limestone, cockle shell, oyster shell, fine ES, and coarse ES as the sole Ca source on production performance, egg quality, blood biochemical constituents, and tibia characteristics in old laying hens. A total of 450 ISA-Brown laying hens at 73 wk of age with similar egg production rate (EPR) were randomly assigned to 5 treatment groups (90 hens/group, 9 hens/replicate) for 7 wk. Dietary treatment groups comprised a corn-soybean meal based diet containing different Ca sources: (i) limestone (LS; < 2 mm and 2–4 mm mixed in the ratio of 3:7) as control, (ii) cockle shell (CS; 1–4 mm), (iii) oyster shell (OS; 3–16 mm), (iv) ES fine particles (ESF; < 1 mm), and (v) ES coarse particles (ESC; 3–5 mm). Results indicated that dietary inclusion of coarse ES particles significantly increased average egg weight (P < 0.001) and daily egg mass (P < 0.05), and decreased feed conversion ratio (P < 0.001) as compared with the other treatments. However, no significant differences in EPR, feed intake, cracked egg proportion, and mortality were observed among the dietary treatments (P > 0.05). Notably, the use of ESF led to a lower proportion of cracked eggs than ESC (P < 0.05). ESC fed hens produced the heaviest eggs whereas CS fed hens produced the lightest (P < 0.001); the particle size of ES also affected the egg weight (P < 0.05). The eggs from OS and ESC fed hens showed a greater albumen height in comparison to eggs from CS group (P < 0.05); but no significant difference was observed among the LS, OS, ESF, and ESC groups (P > 0.05). The yolk color was darker in the eggs of group ESF as compared with other dietary groups (P < 0.01). However, no significant effects on Haugh units and shell properties were observed among the treatments (P > 0.05). The blood biochemistry ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 630
    Language English
    Publishing date 2021-06-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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