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Asian-Australasian journal of animal sciences 22건

  1. [국내논문]   Identification of Novel SNPs in Bovine Insulin-like Growth Factor Binding Protein-3 (IGFBP3) Gene   피인용횟수: 3

    Kim, J.Y. (Department of Genetic Epidemiology, SNP Genetics, Inc. ) , Yoon, D.H. (National Livestock Research Institute, RDA ) , Park, B.L. (Department of Genetic Epidemiology, SNP Genetics, Inc. ) , Kim, L.H. (Department of Genetic Epidemiology, SNP Genetics, Inc. ) , Na, K.J. (National Livestock Research Institute, RDA ) , Choi, J.G. (National Livestock Research Institute, RDA ) , Cho, C.Y. (National Livestock Research Institute, RDA ) , Lee, H.K. (Department of Biotechnology, Hankyong National University ) , Chung, E.R. (Department of Biotechnology, Sangi University ) , Sang, B.C. (Department of Dairy Science, Graduate School, Chungnam National University ) , Cheong, I.J. (National Livestock Research Institute, RDA ) , Oh, S.J. (National Livestock Research Institute, RDA ) , Shin, Hyoung Doo (Department of Genetic Epidemiology, SNP Genetics, Inc.)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 3 - 7 , 2005 , 1011-2367 ,

    초록

    The insulin-like growth factors (IGFs), their receptors, and their binding proteins play key roles in regulating cell proliferation and apoptosis. Insulin-like growth factor binding protein-3 (IGFBP3, OMIM #146732) is one of the proteins that bind to the IGFs. IGFBP3 is a modulator of IGF bioactivity, and direct growth inhibitor in the extravascular tissue compartment. We identified twenty-two novel single nucleotide polymorphisms (SNPs) in IGFBP3 gene in Korean cattle (Hanwoo, Bos taurus coreanae) by direct sequencing of full gene including -1,500 bp promoter region. Among the identified SNPs, five common SNPs were screened in 650 Korean cattle; one SNP in promoter (IGFBP3 G-854C), one in 5'UTR region (IGFBP3 G-100A), two in intron 1 (IGFBP3 G+421T, IGFBP3 T+1636A), and one in intron 2 (IGFBP3 C+3863A). The frequencies of each SNP were 0.357 (IGFBP3 G-854C), 0.472 (IGFBP3 G-100A), 0.418 (IGFBP3 G+421T), 0.363 (IGFBP3 T+1636A) and 0.226 (IGFBP3 C+3863A), respectively. Haplotypes and their frequencies were estimated by EM algorithm. Six haplotypes were constructed with five SNPs and linkage disequilibrium coefficients (|D'|) between SNP pairs were also calculated. The information on SNPs and haplotypes in IGFBP3 gene could be useful for genetic studies of this gene.

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  2. [국내논문]   Effect of Family Size and Genetic Correlation between Purebred and Crossbred Halfsisters on Response in Crossbred and Purebred Chickens under Modified Reciprocal Recurrent Selection  

    Singh, Neelam (C/O S. P. Singh, DSP/ARO, DCR, Reserve Police Lines ) , Singh, Raj Pal (Department of Animal Breeding, CCS Haryana Agricultural University ) , Sangwan, Sandeep (Department of Animal Husbandry and Dairying, U.P. College ) , Malik, Baljeet Singh (Department of Animal Breeding, CCS Haryana Agricultural University)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 8 - 12 , 2005 , 1011-2367 ,

    초록

    Response in a modified reciprocal recurrent selection scheme for egg production was evaluated considering variable family sizes and genetic correlation between purebred and crossbred half sisters. The criteria of selection of purebred breeders included pullet's own performance, purebred full and half sisters and crossbred half sister's performance. Heritability of egg production of crossbreds (aggregate genotype) and purebred's was assumed to be 0.2 and genetic correlation between purebred and crossbred half sisters ( $r_{pc}$ ) as 0.1, 0.2, 0.3, 0.4, 0.5, 1.0, -0.1, -0.2, -0.3, -0.4, -0.5 and -1.0. Number of dams per sire to produce purebred and crossbred progenies assumed to be 5, 6, 7, 8, while number of purebred female progeny ( $N_p$ ) and crossbred progeny ( $N_c$ ) per dam were considered to be 3, 4, 5 and 6 in each case. Considering phenotypic variance as unity, selection indices were constructed for different combinations of dams and progeny for each value of $r_{pc}$ . Following selection index theory, response in crossbred and purebred for egg production was computed. Results indicated that response in crossbreds depended mainly on crossbred family size and also on magnitude of $r_{pc}$ irrespective of its direction, and response was greater with large crossbred family size than the purebred families. Correlated response in purebreds depends both on magnitude and direction of $r_{pc}$ and was expected to be greater with large purebred family size only. Inclusion of purebred information increased the accuracy of selection for crossbred response for higher magnitude of $r_{pc}$ irrespective of its direction. Present results indicate that desirable response in both crossbred and purebred performance is a function of $r_{pc}$ and family sizes. The ratio of crossbred and purebred family sizes can be optimized depending on the objective of improving the performance of crossbreds and/or of purebreds.

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  3. [국내논문]   Genetic Variation of H-FABP Gene and Association with Intramuscular Fat Content in Laiwu Black and Four Western Pig Breeds   피인용횟수: 2

    Zeng, Y.Q. (College of Animal Science and Technology, Shandong Agricultural University ) , Wang, G.L. (College of Animal Science and Technology, Nanjing Agricultural University ) , Wang, C.F. (College of Animal Science and Technology, Shandong Agricultural University ) , Wei, S.D. (Station of Popularization of Animal Science and Veterinary Technology of Laiwu ) , Wu, Y. (Institute of Animal Science, Shandong Academy of Agricultural Sciences ) , Wang, L.Y. (College of Animal Science and Technology, Nanjing Agricultural University ) , Wang, H. (College of Animal Science and Technology, Shandong Agricultural University ) , Yang, H.L. (College of Animal Science and Technology, Shandong Agricultural University)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 13 - 16 , 2005 , 1011-2367 ,

    초록

    This study was performed to detect genetic variation of the heart fatty acid-binding protein (H-FABP) gene by PCRRFLPs approach and its association with intramuscular fat (IMF) content. Data from 223 individuals, including one Chinese native pig breed and four western pig breeds, were analyzed. The results showed that for the H-FABP gene, there was one polymorphic HinfI site in the 5'-upstream region, whereas there were one HaeIII and one HinfI (marked as $HinfI^*$ ) polymorphic site in the second intron, respectively. The three PCR-RFLPs were present in all breeds tested. The allele frequencies, however, revealed significant differences between them (p $HinfI^*$ in the Hampshire breed were at disequilibrium, which might be the result of selective breeding. Results also indicated that for HinfI, HaeIII and $HinfI^*$ HFABP RFLP, significant (p

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  4. [국내논문]   Effects of Melatonin on Gene Expression of IVM/IVF Porcine Embryos   피인용횟수: 4

    Jang, H.Y. (Department of Genomic Engineering, Genomic Informatics Center, Hankyong National University ) , Kong, H.S. (Department of Genomic Engineering, Genomic Informatics Center, Hankyong National University ) , Choi, K.D. (Department of Genomic Engineering, Genomic Informatics Center, Hankyong National University ) , Jeon, G.J. (Department of Genomic Engineering, Genomic Informatics Center, Hankyong National University ) , Yang, B.K. (College of Animal Resources Science, Kangwon National University ) , Lee, C.K. (School of Agricultural Biotechnology, Seoul National University ) , Lee, H.K. (Department of Genomic Engineering, Genomic Informatics Center, Hankyong National University)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 17 - 21 , 2005 , 1011-2367 ,

    초록

    The effect of melatonin on in vitro embryo development and the expression of antioxidant enzyme gene in preimplantation porcine embryos was determined by modified semi-quantitative single cell RT-PCR. Porcine embryos derived from in vitro maturation /in vitro fertilization were cultured in 5% $CO_2$ and 20% $O_2$ at $37^{\circ}C$ in NCSU23 medium. Melatonin was added to medium at concentration of 1nM, 5 nM, and 10 nM. When treated with 1nM (39.0%) of melatonin, the developmental rate of embryos beyond the morula stage were higher than that of control group (31.0%) (p ${\pm}$ 0.5 and 17.3 ${\pm}$ 0.8), 1 nM (23.6 ${\pm}$ 0.6 and 19.0 ${\pm}$ 0.5), and 5 nM (23.3 ${\pm}$ 1.1 and 16.3 ${\pm}$ 0.8) treated with melatonin were higher than in 10 nM (20.0 ${\pm}$ 0.5 and 13.3 ${\pm}$ 0.8) treated with melatonin (p

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  5. [국내논문]   Effects of Pelleted Sugarcane Tops on Voluntary Feed Intake, Digestibility and Rumen Fermentation in Beef Cattle   피인용횟수: 2

    Yuangklang, Chalermpon (Department of Animal Science, Faculty of Agriculture, Khon Kaen University ) , Wanapat, M. (Sakon Nakhon Agricultural Research and Training Center, Rajamangala Institute of Technology ) , Wachirapakorn, C. (Sakon Nakhon Agricultural Research and Training Center, Rajamangala Institute of Technology)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 22 - 26 , 2005 , 1011-2367 ,

    초록

    Four male crossbred beef steers about 2 years old were used in a 4 $\{times}$ 4 Latin square design to investigate the effect of pelleted sugarcane tops on voluntary feed intake, rumen fermentation and digestibility of nutrients. Experimental treatments were; Control (dried-chopped sugarcane tops (DCST)); PS1 (Pelleted sugarcane tops at 1 cm of diameter); PS2 (Pelleted sugarcane tops at 2 cm of diameter) and PS3 (Pelleted sugarcane tops at 3 cm of diameter). Roughage intake and total dry matter intake were 1.59, 1.62, 1.61, 1.63% BW and 2.09, 2.12, 2.11 and 2.13% BW in control, PS1, PS2 and PS3 treatments, respectively (p 0.05). Rumen pH, ammonia nitrogen and plasma urea nitrogen were significantly different (p

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  6. [국내논문]   Effect of Microwave Treatment on Chemical Composition and In sacco Digestibility of Wheat Straw in Yak Cow  

    Dong, Shikui (School of Environment, Beijing Normal University ) , Long, Ruijun (Northwest Plateau Institute of Biology, Chinese Academy of Sciences ) , Zhang, Degang (Grassland Science College, Gansu Agricultural University ) , Hu, Zizhi (Grassland Science College, Gansu Agricultural University ) , Pu, Xiaopeng (Grassland Science College, Gansu Agricultural University)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 27 - 31 , 2005 , 1011-2367 ,

    초록

    Wheat straw was treated with microwave for 4 min and 8 min at a power of 750 W and frequency of 2,450 MHz. Chemical compositions of untreated, 4 min treated and 8 min treated straws were analyzed and in sacco degradabilities of all these straws in yak rumens were measured. Microwave treatment didn't significantly (p>0.05) affect the chemical composition of the straw. In sacco dry matter (DM) degradability of the straw after 18 h incubation in rumen was significantly (p 0.05) affected by microwave treatment. In sacco organic matter (OM) degradability of the straw was increased (p

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  7. [국내논문]   Effect of Salt Level in Water on Feed Intake and Growth Rate of Red and Fallow Weaner Deer  

    Ru, Y.J. (Livestock Systems, South Australian Research and Development Institute ) , Glatz, P.C. (Livestock Systems, South Australian Research and Development Institute ) , Bao, Y.M. (Livestock Systems, South Australian Research and Development Institute)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 32 - 37 , 2005 , 1011-2367 ,

    초록

    Under a typical Mediterranean environment in southern Australia, the evaporation rate increases significantly in hot summers, resulting in highly saline drinking water for grazing animals. Also in the cropping areas, dryland salinity is a problem. Grazing animals under these environments can ingest excessive amount of salt from feed, drinking water and soil, which can lead to a reduction in growth rate. To understand the impact of high salt intake on grazing deer, two experiments were conducted to assess the effect of salt levels in drinking water on feed intake and growth rate of red and fallow weaner deer. The results revealed that fallow deer did not show any abnormal behaviour or sickness when salt level in drinking water was increased from 0% to 2.5%. Feed intake was not affected until the salt content in water exceeded 1.5%. Body weight gain was not affected by 1.2% salt in drinking water, but was reduced as salt content in water increased. Compared with deer on fresh water, the feed intake of red deer on saline water was 11-13% lower when salt level in drinking water was 0.4-0.8%. An increase in salt level in water up to 1% resulted in about a 30% reduction in feed intake (p

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  8. [국내논문]   Effect of Niacin Supplementation on Rumen Metabolites in Murrah Buffaloes (Bubalus bubalis)   피인용횟수: 1

    Kumar, Ravindra (Animal Nutrition Division, Indian Veterinary Research Institute ) , Dass, R.S. (Animal Nutrition Division, Indian Veterinary Research Institute)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 38 - 41 , 2005 , 1011-2367 ,

    초록

    An experiment was conducted on 3 male rumen fistulated adult buffaloes fed on wheaten straw and concentrate mixture in a Latin square design to study the impact of niacin supplementation on rumen metabolites. Three animals were fed wheaten straw+concentrate mixture (group I, control), wheaten straw+concentrate mixture+100 ppm niacin (group II), and wheaten straw +concentrate mixture+200 ppm niacin (group III). After 21 days feeding, rumen liquor was drawn for 3 consecutive days at different time intervals (0, 2, 4, 6 and 8 h) to study the various rumen metabolites i.e., rumen pH, ammonia-N, total-N, trichloroacetic acid precipitable-N, non-protein nitrogen, total volatile fatty acids, their fractions and number of protozoa. Mean pH values in strained rumen liquor (SRL) of animals in 3 groups were 6.64, 6.71 and 6.67, indicating no statistically significant difference. Results revealed a significant (p ${\times}10^4$ /ml SRL) ranged from 18.06 to 27.41 in group I, 20.89 to 38.44 in group II and 27.61 to 39.45 in group III. The mean protozoa number was significantly (p

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  9. [국내논문]   Can Moringa oleifera Be Used as a Protein Supplement for Ruminants?  

    Kakengi, A.M.V. (Sokoine University of Agriculture, Department of Animal Science and Production ) , Shem, M.N. (Sokoine University of Agriculture, Department of Animal Science and Production ) , Sarwatt, S.V. (Sokoine University of Agriculture, Department of Animal Science and Production ) , Fujihara, T. (Sokoine University of Agriculture, Department of Animal Science and Production)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 42 - 47 , 2005 , 1011-2367 ,

    초록

    The possibility of using Moringa oleifera as a ruminant protein supplement was investigated by comparison between nutritive and anti-nutritive value of its different morphological parts with that of conventionally used Leucaena leucocephala leaf meal (LL). Parameters determined were chemical composition, rumen degradable protein (RDP), acid detergent insoluble protein (ADIP), pepsin soluble protein (PESP), non-protein nitrogen (NPN) total soluble protein (TSP) and protein potentially digested in the intestine (PDI). Total phenols (TP) and total extractable tannins (TET) were also evaluated as anti-nutritive factors. In vitro gas production characteristics were measured and organic matter digestibility (OMD) was estimated basing on 24 h-gas production. Crude protein content ranged from 265-308 g/kg DM in M. oleifera leaves (MOL) and seed cake (MOC) respectively. Leucaena leucocephala and Moringa oleifera soft twigs and leaves (MOLSTL) had CP content of 236 and 195 g/kg DM while Moringa oleifera soft twigs alone (MOST) and Moringa oleifera bucks (MOB) had 160, 114 and 69.3 g/kg DM respectively. RDP was highest in (MOC) (181 g/kg DM) followed by (MOL) (177 g/kg DM) and was lowest in MOB (40 g/kg DM). The proportion of the protein that was not available to the animal (ADIP) was (p

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  10. [국내논문]   Macro- and Micro-nutrient Utilization and Milk Production in Crossbred Dairy Cows Fed Finger Millet (Eleucine coracana) and Rice (Oryza sativa) Straw as Dry Roughage Source  

    Gowda, N.K.S. (National Institute of Animal Nutrition and Physiology ) , Prasad, C.S. (National Institute of Animal Nutrition and Physiology)
    Asian-Australasian journal of animal sciences v.18 no.1 ,pp. 48 - 53 , 2005 , 1011-2367 ,

    초록

    Finger millet straw and rice straw are the major source of dry roughage in southern India. They distinctly vary in their morphological and nutritional characters. Hence an effort was made to study the nutrient utilization, milk yield and composition in crossbred dairy cows fed either finger millet (group 1) or rice straw (group 2) as a source of dry roughage. The cows in both the groups were fed as per requirement with concentrate, green fodder and straw in the ratio of 30:45:25 parts (DM). At the end of 50 days of preliminary feeding a digestibility trial was conducted for 7 days and pooled samples of feed, fodder, feces, urine and milk were analysed for macro and micro nutrient content. Finger millet straw contained more CP, Ca, P, Mg, Cu, Zn and Co than rice straw and rice straw contained higher ADF, ash and silica. The intake of DM, CP, EE, NDF, ADF and most micronutrients (Ca, P, Mg, Cu, Zn, Fe, Mn and Co) was significantly higher in cows fed finger millet straw. The digestibility of DM, CP, NDF and ADF was significantly higher in cows fed finger millet straw and the gut absorption of Ca, Cu, Mn and Co was significantly higher in cows fed finger millet straw. The dietary requirement of all micronutrients in both the group of cows could be met irrespective of the type of roughage fed except that of Ca, which was low (0.61 and 0.40%) in rice straw fed cows. The average daily milk yield (L/cow) was also higher (7.0 L) in cows fed finger millet straw as compared to cows fed rice straw (6.3 L). The average milk composition also did not differ except that of milk fat which was significantly (4.7 and 4.5%) low in cows fed rice straw. The overall results of this study have indicated that finger millet straw is a better source of dry fodder than rice straw and while feeding rice straw as the sole roughage to dairy cows there is need to supplement additional calcium as this could be one of the limiting nutrients for milk production.

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