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한국축산학회지 update

Journal of Animal Science and Technology

  • : 한국축산학회(구 한국동물자원과학회)
  • : 농학분야  >  축산
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  • : 1598-9429
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  • : 한국동물자원과학회지(2000~2017)→한국축산학회지(2017~)

수록정보
수록범위 : 1권0호(1958)~61권5호(2019) |수록논문 수 : 4,347
한국축산학회지
61권5호(2019년 09월) 수록논문
최근 권호 논문
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1Natural and synthetic pathogen associated molecular patterns modulate galectin expression in cow blood

저자 : Emmanuel Kwaku Asiamah , Kingsley Ekwemalor , Sarah Adjei-fremah , Bertha Osei , Robert Newman , Mulumebet Worku

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 245-253 (9 pages)

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Pathogen-associated Molecular Patterns (PAMPs) are highly conserved structural motifs that are recognized by Pathogen Recognition receptors (PRRs) to initiate immune responses. Infection by these pathogens and the immune response to PAMPS such as lipopolysaccharide (LPS), Peptidoglycan (PGN), bacterial oligodeoxynucleotides [CpG oligodeoxynucleotides 2006 (CpG ODN2006) and CpG oligodeoxynucleotides 2216 (CpG ODN2216)], and viral RNA Polyinosinic-Polycytidylic Acid (Poly I:C), are associated with infectious and metabolic diseases in animals impacting health and production. It is established that PAMPs mediate the production of cytokines by binding to PRRs such as Toll-like receptors (TLR) on immune cells. Galectins (Gal) are carbohydrate-binding proteins that when expressed play essential roles in the resolution of infectious and metabolic diseases. Thus it is important to determine if the expression of galectin gene (LGALS) and Gal secretion in blood are affected by exposure to LPS and PGN, PolyI:C and bacterial CpG ODNs. LPS increased transcription of LGALS4 and 12 (2.5 and 2.02 folds respectively) and decreased secretion of Gal 4 (p < 0.05). PGN increased transcription of LGALS-1, -2, -3, -4, -7, and -12 (3.0, 2.3, 2.0, 4.1, 3.3, and 2.4 folds respectively) and secretion of Gal-8 and Gal-9 (p < 0.05). Poly I:C tended to increase the transcription of LGALS1, LGALS4, and LGALS8 (1.78, 1.88, and 1.73 folds respectively). Secretion of Gal-1, -3, -8 and nine were significantly increased in treated samples compared to control (p < 0.05). CpG ODN2006 did not cause any significant fold changes in LGALS transcription (FC < 2) but increased secretion of Gal-1, and-3 (p < 0.05) in plasma compared to control. Gal-4 was however reduced in plasma (p < 0.05). CpG ODN2216 increased transcription of LGALS1 and LGALS3 (3.8 and 1.6 folds respectively), but reduced LGALS2, LGALS4, LGALS7, and LGALS12 (-1.9, -2.0, -2.0 and; -2.7 folds respectively). Secretion of Gal-2 and -3 in plasma was increased compared to control (p < 0.05). Gal-4 secretion was reduced in plasma (p < 0.05). The results demonstrate that PAMPs differentially modulate galectin transcription and translation of galectins in cow blood.

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2In vivo nutritive value of rice feed for sheep and its application for cattle feed

저자 : Ji Yung Kim , Bae Hun Lee , Befekadu Chemere , Doo Hong Min , Byong Wan Kim , Kyung Il Sung

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 254-259 (6 pages)

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The objective of this study was to evaluate the nutritive value of polished rice (PR) vs unpolished rice (UPR) as a potential feedstuff for sheep in order to use as a replacer to corn in sheep diet, and as well as to present the application in the formulation of cattle diet. Six corriedale ewe were randomly assigned to each treatment. UPR and PR were provided as a dietary treatment together with timothy grass as a basal diet in a crossover design for two period with 15-d duration for each period. The ratio of experimental and basal feeds were 33.3% and 66.7%, respectively. The differences in the total digestible nutrient (TDN) contents between sheep and cattle was determined according to the references. The number of data collected sheep and cattle was 9 and 17, respectively. The PR showed higher nutrients digestibility than UPR. Similarly, higher TDN content was observed PR than UPR (p < 0.05). As a result, the replacement of corn in the formulate feed with UPR and PR feed rice could be possible with the ratio of 91.2% and 100.0%, respectively. The result of comparation the TDN contents of UPR and PR in sheep and cattle, the PR has no difference in the nutritive value which suggests the applicability of the results of sheep to cattle. On the other hand, UPR has known to have different nutritive value between sheep and cattle, so caution should be taken when preparing formula feeds for cattle.

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3Effect of stocker management program on beef cattle skeletal muscle growth characteristics, satellite cell activity, and paracrine signaling impact on preadipocyte differentiation

저자 : Mathew A. Vaughn , Phillip A. Lancaster , Kelly C. Roden , Evin D. Sharman , Clinton R. Krehbiel , Gerald W. Horn , Jessica D. Starkey

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 260-271 (12 pages)

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The objective of this study was to determine the effect of different stocker management programs on skeletal muscle development and growth characteristics, satellite cell (SC) activity in growing-finishing beef cattle as well as the effects of SC-conditioned media on preadipocyte gene expression and differentiation. Fall-weaned Angus steers (n = 76; 258 ± 28 kg) were randomly assigned to 1 of 4 stocker production systems: 1) grazing dormant native range (NR) supplemented with a 40% CP cottonseed meal-based supplement (1.02 kg · steer-1 · d-1) followed by long-season summer grazing (CON, 0.46 kg/d); 2) grazing dormant NR supplemented with a ground corn and soybean meal-based supplement fed at 1% of BW followed by short-season summer grazing (CORN, 0.61 kg/d); 3) grazing winter wheat pasture (WP) at high stocking density (3.21 steers/ha) to achieve a moderate rate of gain (LGWP, 0.83 kg/d); and 4) grazing winter WP at low stocking density (0.99 steers/ha) to achieve a high rate of gain (HGWP, 1.29 kg/d). At the end of the stocker (intermediate harvest, IH) and finishing (final harvest, FH) phases, 4 steers / treatment were harvested and longissimus muscles (LM) sampled for cryohistological immunofluorescence analysis and SC culture assays. At IH, WP steers had greater LM fiber cross-sectional area than NR steers; however, at FH, the opposite was observed (p < 0.0001). At IH, CORN steers had the lowest Myf-5+:Pax7+ SC density (p = 0.020), while LGWP steers had the most Pax7+ SC (p = 0.043). At FH, CON steers had the highest LM capillary density (p = 0.003) and their cultured SC differentiated more readily than all other treatments (p = 0.017). At FH, Pax7 mRNA was more abundant in 14 d-old SC cultures from HGWP cattle (p = 0.03). Preadipocytes exposed to culture media from proliferating SC cultures from WP cattle isolated at FH had more PPARγ (p = 0.037) and less FABP4 (p = 0.030) mRNA expression compared with NR cattle. These data suggest that different stocker management strategies can impact skeletal muscle growth, SC function, and potentially impact marbling development in growing-finishing beef cattle.

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4Effects of dietary mixture of protease and probiotics on growth performance, blood constituents, and carcass characteristics of growing-finishing pigs

저자 : Yejin Min , Yohan Choi , Jeehwan Choe , Younghwa Kim , Yongdae Jeong , Doowan Kim , Joeun Kim , Hyunjung Jung , Minho Song

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 272-277 (6 pages)

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This study was conducted to evaluate the effects of dietary mixture of protease and probiotics on growth performance, blood constituents, and carcass characteristics of growing-finishing pigs. A total of 48 growing pigs were randomly allotted into 2 dietary (6 pigs/pen; 4 replicates/treatment). The treatments were a diet based on corn and soybean meal (CON) and CON supplemented with 0.01% of dietary mixture of protease and probiotics (MULTI). No differences were found on growth performance (average daily gain, ADG; overall, 874.06 vs. 881.14 g/d; p > 0.05), blood constituents (white blood cell, WBC; phase I, 17.51 vs. 19.96 × 103 /μL; phase II, 19.65 vs. 21.95 × 103 /μL; p > 0.05), and carcass characteristics during overall experimental period between CON and MULTI. In conclusion, the addition of dietary mixture of protease and probiotics in growing-finishing pig diet did not have any beneficial effects.

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5Effects of seeding dates on dry matter yield and feed values of whole-crop barley cultivated in a paddy field

저자 : Sang Moo Lee , Eun Joong Kim

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 278-284 (7 pages)

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This study was carried out to investigate the effects of seeding dates on the yield and feed value of whole-crop barley cultivated in paddy soil. The field experiment was conceived as a randomized block design performed in triplicate with seeding dates of Oct. 19 (T1 as treatment 1), Oct. 26 (T2 as treatment 2), Nov. 2 (T3 as treatment 3), Nov. 9 (T4 as treatment 4), and Nov. 16 (T5 as treatment 5) as treatments. The barley grown in all treatments was harvested on May 21 of the following year. Plant length, fresh yield, dry matter yield, and total digestible nutrient (TDN) yield were higher (p < 0.05) in barley with early seeding dates, whereas crude protein and ether extract were higher (p < 0.05) with late seeding dates. Crude fiber and neutral detergent fiber were highest in the T3 treatment and lowest in the T1 treatment. There was no significant difference between acid detergent fiber and TDN among the different seeding dates. Total mineral contents were higher in the order T1 > T2 > T3 > T4 > T5 (p < 0.05), whereas the total amino acid content increased significantly (p < 0.05) with a delay in seeding date. Free sugar contents (fructose, glucose, and sucrose) were higher with early seeding dates (p < 0.05). Collectively, the results obtained in this study indicate that it is favorable to seed soon after harvesting rice to increase dry matter and TDN yields and mineral and free sugar contents of whole-crop barley in the midlands of Korea.

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6Age and weight at first mating affects plasma leptin concentration but no effects on reproductive performance of gilts

저자 : Suhyup Lee , Abdolreza Hosseindoust , Yohan Choi , Minju Kim , Kwangyeol Kim , Junhyung Lee , Younghwa Kim , Byungjo Chae

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 285-293 (9 pages)

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The objective of this study was to verify the best mating age of gilts at the first parity. Gilts (n = 86) were divided into nine groups in a factorial arrangement with three Ages (AG1, ≤ 220 d; AG2, 220 to 240 d; AG3, 240 ≤ d), and three weights (WT1 ≤ 140 kg; WT2, 140 to 149 kg; WT3, 150 ≤ kg). A higher body weight gain in AG2 sows during gestation. Sows in AG2 group showed a higher body weight gain at first parity and backfat gain in the parity 2 and 3 during gestation. A greater insulin-like growth factor-1 (IGF-1) was observed in AG1 sows compared with AG3 sows at weaning in the second parity. Sows in WT1 group showed a significant positive effect on the plasma IGF-1 at breeding and weaning time in parity 2. Sows in AG3 group showed a higher plasma leptin at breeding, farrowing, and weaning in the parity 1, and at farrowing in parity 2. Sows in WT3 group showed a higher plasma leptin at breeding, farrowing, and weaning in the parities 1 and 2. Considering the insignificant longevity results, the most efficient time for gilts insemination can be at 220 d when their body weight is 140 kg or lower

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7Effects of dietary vitamin levels on physiological responses, blood profiles, and reproductive performance in gestating sows

저자 : Jae Hark Jeong , Jin Su Hong , Tae Hee Han , Lin Hu Fang , Woo Lim Chung , Yoo Yong Kim

발행기관 : 한국축산학회(구 한국동물자원과학회) 간행물 : 한국축산학회지 61권 5호 발행 연도 : 2019 페이지 : pp. 294-303 (10 pages)

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This study was performed to evaluate the effects of dietary vitamin levels on physiological responses, blood profiles, and reproductive performance in gestating sows. A total of 52 F1 multiparous sows (Yorkshire × Landrace) with an average body weight of 223.5 ± 31.7 kg, an average parity of 6.4 ± 2.7, and an average backfat thickness of 18.5 ± 4.9 mm were divided into four treatment groups considering body weight, backfat thickness, and parity in a completely randomized design with 13 replicates. The treatments were 100% (V1), 300% (V3), 600% (V6) and 900% (V9) of the National Research Council (NRC) Nutrient Requirements of Swine. The gestation diet was formulated based on corn-soybean meal (SBM) and contained 3,265 kcal of metabolizable energy (ME)/kg and 12.00% crude protein. During the lactation period, all sows were fed the same commercial lactation diet. There was no significant difference in body weight of gestating sows. However backfat thickness tended to increase when higher levels of vitamins were provided to gestating sows (p < 0.10). When high levels of dietary vitamins were provided, the body weight change of lactating sows increased (p < 0.01). When sows were fed higher levels of vitamins, the feed intake of lactating sows tended to decrease (p = 0.06). There were no treatment differences in the number of total born, born alive, stillbirth piglets, or the body weight of piglets according to different dietary vitamin level. As dietary vitamin level increased, the serum concentration of 25(OH)D3 in sows at 90 days of gestation linearly increased (p < 0.01). Furthermore, the serum vitamin E level of gestating sows was linearly increased with increasing dietary vitamin level (p < 0.05). The current NRC vitamin requirements are sufficient for gestating sows and higher levels of vitamins in the gestation diet did not show any beneficial effects for gestating and lactating sows.

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