• 제목/요약/키워드: Korean Society of Animal Science and Technology

검색결과 5,033건 처리시간 0.032초

Investigation of supplementation with a combination of fermented bean dregs and wheat bran for improving the growth performance of the sow

  • Junze Liu;Kai Wang;Liangyu Zhao;Yansen Li;Zhaojian Li;Chunmei Li
    • Journal of Animal Science and Technology
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    • 제66권2호
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    • pp.295-309
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    • 2024
  • To investigate the effect of dietary supplementation with a fermented mixture of bean dregs and wheat bran (FBW) on sow performance. FBW was given to sows during late gestation and lactation; in total, 24 sows were randomly assigned to 4 groups (control diet; 3% FBW diet; 6% FBW diet; 9% FBW diet, n = 6). The weight ratio of bean dregs (wet) to wheat bran was 4:6. Sows were fed different diets from 85 d of gestation until weaning. The results showed that supplementation with FBW increased average daily feed intake (ADFI) during lactation (p < 0.05). FBW supplementation also increased litter weight and milk yield (p < 0.05). The contents of Escherichia coli in the feces of the treatment groups were significantly reduced by FBW supplementation (p < 0.01). FBW supplementation significantly improved the fecal morphology (p < 0.05), alleviating sows' constipation. In conclusion, FBW could increase the ADFI, improve lactation and piglet litter weight in sows and reduce the pathogenic bacterial content in sow feces and constipation.

High quality genome sequence of Treponema phagedenis KS1 isolated from bovine digital dermatitis

  • Espiritu, Hector M.;Mamuad, Lovelia L.;Jin, Su-jeong;Kim, Seon-ho;Lee, Sang-suk;Cho, Yong-il
    • Journal of Animal Science and Technology
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    • 제62권6호
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    • pp.948-951
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    • 2020
  • Treponema phagedenis KS1, a fastidious anaerobe, was isolated from a bovine digital dermatitis (BDD)-infected dairy cattle in Chungnam, Korea. Initial data indicated that T. phagedenis KS1 exhibited putative virulent phenotypic characteristics. This study reports the whole genome assembly and annotation of T. phagedenis KS1 (KCTC14157BP) to assist in the identification of putative pathogenicity related factors. The whole genome of T. phagedenis KS1 was sequenced using PacBio RSII and Illumina HiSeqXTen platforms. The assembled T. phagedenis KS1 genome comprises 16 contigs with a total size of 3,769,422 bp and an overall guanine-cytosine (GC) content of 40.03%. Annotation revealed 3,460 protein-coding genes, as well as 49 transfer RNA- and 6 ribosomal RNA-coding genes. The results of this study provide insight into the pathogenicity of T. phagedenis KS1.

이유시기가 한우 송아지의 발성빈도에 미치는 영향 (Effects of Weaning Period on Vocalization Frequency in Hanwoo Calf)

  • 이규호;유정원;김상욱;정왕용;이원현;이상락
    • 한국축산시설환경학회지
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    • 제20권4호
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    • pp.173-176
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    • 2014
  • This study was conducted to investigate the effect of weaning period on the vocalization frequency of Hanwoo calf. Twelve Hanwoo calves were allocated into 4 groups, control (forced weaning on 90days) and treatment (weaning on 70, 90 and 120days with 5 adaptation days). After weaning, behavior and vocalization of Hanwoo calves were recorded on 3 consecutive days with closed circuit television (DTC-R5254, Digite Co., Ltd., Korea) and digital audio tape recorder (SR-900, Idamtech Co., Ltd., Korea). Vocalization frequency of Hanwoo calf were not significance difference with control and treatment group. Thus, additional studies of feed intake and body weight gain were needed to determine the weaning period of Hanwoo calves.

Comparison of Muscle Fiber and Meat Quality Characteristics of Beef Strip Loin, Tenderloin, and Round Cuts among Jeju Black Cattle, Hanwoo, and Their Crossbreeds

  • Soo-Hyun Cho;Van-Ba Hoa;Dong-Heon Song;Dong Kyun Kim;Yun-Seok Kim;Hyun-Wook Kim;In-Seon Bae;Pil Nam Sung;Junyoung Park;Sumin Song;Huilin Cheng;Lixin Du;Choeun Im;Gap-Don Kim
    • 한국축산식품학회지
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    • 제44권5호
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    • pp.1181-1194
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    • 2024
  • This study assessed and compared meat quality and fiber characteristics of longissimus lumborum (LL), psoas major (PM), and semimembranosus muscles among Hanwoo (HW), Jeju black (BL), and their crossbred (BH) cattle. Twelve carcasses from each breed (36 in total) were used in this study. BL and BH had higher moisture and crude ash contents and lower crude fat and protein contents than HW, regardless of the muscle type. BL had higher CIE a*, cooking loss, and shear force values than did the other breeds for all muscle types. The muscle fiber size (cross-sectional area) of BL and BH was larger than that of HW for all muscle types. Type IIX was the dominant muscle fiber type in both BL and BH, regardless of muscle type; however, HW had the highest composition of type I compared to the other types (IIA, IIAX, and IIX) in PM. Higher total fiber density was observed in the LL and PM muscles of HW than in those of BL and BH. Meat quality and muscle fiber characteristics of BL and BH were distinct from those of HW.