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Asian-Australasian journal of animal sciences 23건

  1. [국내논문]   The Effect of Non-genetic Factors on Birth Weight and Weaning Weight in Three Sheep Breeds of Zimbabwe   피인용횟수: 2

    Assan, N. (Matopos Research Station ) , Makuza, S.M. (Department of Animal Science, University of Zimbabwe)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 151 - 157 , 2005 , 1011-2367 ,

    초록

    Sheep production is affected by genetic and non-genetic factors. A knowledge of these factors is essential for efficient management and for the accurate estimation of breeding values. The objective of this study was to establish the non-genetic factors which affect birth weight and weaning weight in Dorper, Mutton Merino and indigenous Sabi sheep breeds. A total of 2,625 birth and weaning weight records from Grasslands Research Station collected from 1991 through 1993, were used. The records were collected from indigenous Sabi (939), Dorper (807) and Mutton Merino (898) sheep. A mixed classification model containing the fixed effects of year, birth status and sex was used for identification of non-genetic factors. Sire within breed was included as a random effect. Two factor interactions and three factor interactions were important in indigenous Sabi, Mutton Merino and Dorper sheep. The mean birth weights were 4.37 ${\pm}$ 0.04 kg, 4.62 ${\pm}$ 0.04 kg and 3.29 ${\pm}$ 0.04 kg for Mutton Merino, Dorper and Sabi sheep, respectively. Sire had significant effects (p ${\pm}$ 0.05 kg) were 0.23 kg heavier than twins (3.07 ${\pm}$ 0.05 kg), in Mutton Merino lambs born as singles (3.99 ${\pm}$ 0.08 kg) were 0.07 kg heavier than twins (3.92 ${\pm}$ 0.08 kg) and in Dorper lambs born as singles (4.41 ${\pm}$ 0.04 kg) were 0.02 kg heavier than twins (4.39 ${\pm}$ 0.04 kg). On average males were heavier than females (p ${\pm}$ 0.04 kg vs. 3.05 ${\pm}$ 0.07 kg) in indigenous Sabi, 4.73 ${\pm}$ 0.03 kg vs. 4.08 ${\pm}$ 0.05 in Dorper and 4.26 ${\pm}$ 0.07 kg vs. 3.66 ${\pm}$ 0.09 kg in Mutton Merino sheep. Two way factor interactions of sire*year, year*sex and sex*birth status had significant effects (p ${\pm}$ 0.31 kg, 18.19 ${\pm}$ 0.28 kg and 14.39 ${\pm}$ 0.28 kg for Mutton Merino, Dorper and Indigenous Sabi sheep, respectively. Effects of sire and sire*year were non significant on weaning weight in Dorper and Mutton Merino while year, sex and sex*year interaction had significant effects (p ${\pm}$ 0.46 kg, 18.68 ${\pm}$ 0.19 kg, 14.14 ${\pm}$ 0.15 kg for males and 16.64 ${\pm}$ 0.60 kg, 16.41 ${\pm}$ 0.31 kg, 12.64 ${\pm}$ 0.32 kg for females in Mutton Merino, Dorper and Indigenous Sabi sheep. Lambs born as singles were significantly heavier at weaning than twins, 0.05 kg, 0.06 kg and 0.78 kg for Mutton Merino, Dorper and Indigenous Sabi sheep, respectively. Effect of tupping weight was highly significant on weaning weight. The three way factor interaction year*sex*birth status had a significant effect (p

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  2. [국내논문]   Production of Transgenic Chimeric Chickens Using Blastodermal Cells   피인용횟수: 2

    Yan, Haifeng (Lab for Molecular Biology Applied to Animal Production, Hunan Institute of Animal and Veterinary Science ) , Lee, Chaeyoung (Ilsong Institute of Life Science, Hallym University ) , Xiao, Bingnan (Lab for Molecular Biology Applied to Animal Production, Hunan Institute of Animal and Veterinary Science ) , Trefil, Pavel (Research Institute of Biopharmacy and Veterinary Drugs ) , Liu, Shixun (Lab for Molecular Biology Applied to Animal Production, Hunan Institute of Animal and Veterinary Science ) , Kim, Younyoung (Ilsong Institute of Life Science, Hallym University ) , Wu, Xiaolin (Lab for Molecular Biology Applied to Animal Production, Hunan Institute of Animal and Veterinary Science)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 158 - 164 , 2005 , 1011-2367 ,

    초록

    A practical approach was proposed to produce transgenic chimeric chickens using blastodermal cells (BCs). The chicken BCs were mechanically dissociated and transferred into the recipient eggs that had been exposed to 500 rads irradiation of $^{60}Co$ and windowed on the equatorial plane. Chimeric chickens were generated using two models: the crosses (MXL) from Black Minors (ii,EE,b/b) ♂ ${\times}$ Barred Leghorns (ii,ee,B/-) ♀ as donors and White Leghorns (WL, II) as acceptors (Model 1), or the Black Heifengs (BH, ii,EE,bb) as donors and Hua-xing white (HW, II) as recipients (Model 2). The treated eggs were incubated in their original shells in normal conditions until hatching. Green fluorescent protein (GFP) gene was transferred into the BCs derived from MXL and BH via lipofectamine and the pEGFP-C1, and transfection efficiency into the BCs was examined under a fluorescent microscope. Potential transgenic chimeras were selected based on the proposed methods in this study. Using the fresh BCs, the best rate of phenotypic chimeras was 6.7% and 26.0% in model-1 groups, and model-2 groups, respectively. We also described the optimized conditions for transfection. Although 30% of the BCs transfected in vitro emitted green light under an inverted fluorescent microscope, no embryos injected with the transfected BCs expressed foreign GFP gene at 3-4 days.

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  3. [국내논문]   Association of Candidate Genes with Production Traits in Korean Dairy Proven and Young Bulls  

    Jang, G.W. (Animal Genomics & Bioinformatics Division, National Livestock Research Institute ) , Cho, K.H. (Animal Genomics & Bioinformatics Division, National Livestock Research Institute ) , Kim, T.H. (Animal Genomics & Bioinformatics Division, National Livestock Research Institute ) , Oh, S.J. (Animal Genomics & Bioinformatics Division, National Livestock Research Institute ) , Cheong, I.C. (Animal Genomics & Bioinformatics Division, National Livestock Research Institute ) , Lee, K.J. (Animal Genomics & Bioinformatics Division, National Livestock Research Institute)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 165 - 169 , 2005 , 1011-2367 ,

    초록

    This study was performed to offer effective basic data for selection and improvement of Korean dairy cattle through identifying distributional properties among candidate genes (bovine butyrophilin, signal transducers and activators of transcription 5a, and prolactin hormone). In this study, polymorphisms of candidate genes were identified and the relationships between loci and production traits of each gene were analyzed using frozen semen of Holstein bulls (19 proven and 77 candidates). In butyrophilin (BTN) locus, polymorphisms information contents (PIC) value of BTN2 (0.372) was higher than those of others (BTN1; 0.155, BTN3; 0.254, BTN4; 0.169). As a result of analysis of genotyping STAT5a, using single stranded conformational polymorphism (SSCP) method and microsatellite locus, PIC values were 0.189 and 0.457, respectively. And PIC value of prolactin hormone gene was 0.176. In the relationships between genotypes and production traits, BTN3 was associated with 305-day production traits (p

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  4. [국내논문]   In silico Discovery of Genes Expressed in Liver, Kidney, Spleen and Small Intestine of Pigs  

    Pan, Zengxiang (College of Animal Science and Technology, Nanjing Agricultural University ) , Liu, Honglin (College of Animal Science and Technology, Nanjing Agricultural University ) , Chen, Jie (College of Animal Science and Technology, Nanjing Agricultural University ) , Xu, Dan (College of Animal Science and Technology, Nanjing Agricultural University ) , Jiang, Zhihua (Department of Animal Sciences, Washington State University ) , Xie, Zhuang (College of Animal Science and Technology, Nanjing Agricultural University)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 170 - 178 , 2005 , 1011-2367 ,

    초록

    An in silico approach was developed to survey the genes expressed in four internal organs of pig: liver, kidney, spleen and small intestine. The major procedures of the approach included: (1) BLAST searching against GenBank "est_others" database using human cDNA sequences as queries to screen the porcine orthologous expressed sequence tags (ESTs), (2) classifying the porcine ESTs records by resources according to certain criteria and (3) analyzing data for ESTs specifically expressed in each organ. In order to do so, four Java programs were developed. Based on the ESTs available in the GenBank database, it was found that there were at least 2,100 genes expressed in these four organs, including 128 in the liver, 81 in the kidney, 780 in the spleen, and 1,423 in the small intestine respectively (a few genes co-expressed in these tissues). Gene expression patterns, such as co-expressed genes, preferentially expressed genes and basic active genes were also compared and characterized among these organs. This study provides a comprehensive model on how to use the bioinformatics approach and Genbank databases to facilitate the discovery of new genes in livestock species.

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  5. [국내논문]   Genetic Studies and Development of Prediction Equations in Jersey${\times}$Sahiwal and Holstein-Friesian${\times}$Sahiwal Half Breds  

    Singh, P.K. (Department of Animal Sciences, College of Ag., GBPUA&T ) , Kumar, Dhirendra (Department of Animal Sciences, College of Agriculture, G.B. Pant University of Agriculture and Technology ;) , Varma, S.K.
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 179 - 184 , 2005 , 1011-2367 ,

    초록

    First lactation records (174) of Jersey ${\times}$ Sahiwal and Holstein Friesian ${\times}$ Sahiwal half breds under 9 sires maintained at Chandra Shekher Azad University of Agriculture and Technology, Kanpur, Uttar Pradesh, India from 1975-1983, were used to estimate the genetic parameters and to predict herd life milk yield and average milk yield per day of herd life from first lactation traits. The traits included were: age at first calving, first service period, first lactation period, first calving interval, first lactation milk yield, milk yield per day of first calving interval, herd life milk yield, herd life and average milk yield per day of herd life. Most of the production and reproduction traits were found to have positive and significant correlations between them on genetic as well as phenotypic scales. Total twelve regression equations were fitted. The prediction equation of herd life milk yield in both the genetic groups showed linear relationship with AFC, FSP, FLP, FLMY and MY/DCI and was apparent and significant. Similarly, polynomials for milk yield per day of herd life for J ${\times}$ S and HF ${\times}$ S half breds also showed linear trend, which was found highly significant. The highest and lowest $R^2$ values were found for FCI and AFC, respectively.

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  6. [국내논문]   Effect of Feeding Ammoniated Wheat Straw Treated with Hydrochloric Acid on Blood Biochemical Profile in Growing Male Buffalo (Bubalus bubalis) Calves  

    Naik, P.K. (P.A.U. ) , Mehra, Usha R. (Division of Animal Nutrition, Indian Veterinary Research Institute ) , Kalicharan, Kalicharan (Pathology Division ) , Varshney, V.P. (Physiology and Climatology Division ) , Dass, R.S. (Division of Animal Nutrition, Indian Veterinary Research Institute)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 185 - 191 , 2005 , 1011-2367 ,

    초록

    An experiment was conducted to study the effect of feeding ammoniated wheat straw treated with HCl on blood biochemical profiles in growing male buffalo (Bubalus bubalis) calves. Twenty-four growing male buffalo calves (one year of age, 88.54 ${\pm}$ 3.81 kg average body weight) were divided into three groups in a completely randomized design on the basis of their body weight. Animals in all the three groups were fed on concentrate mixture. In addition, they were offered wheat straw, ammoniated wheat straw (4% urea at 50% moisture level) and HCI treated ammoniated wheat straw (4% urea at 50% moisture level and HCl added to trap 30% of the NH3 evolved) in groups I, II and III, respectively for a period of 180 days, as per Kearl (1982) for body weight gain of 500 g/d. In all diets, concentrate:roughage ratio was fixed at 50:50 and were made isonitrogenous by adjusting CP levels of conc. mixtures. Blood was collected from jugular vein of each buffalo calf at the beginning and subsequently at two months interval of experimental feeding. Due to urea-ammoniation, the CP content of wheat straw increased from 2.90 to 6.96% and addition of HCl along with urea further increased the CP content to 10.09%. In all the three groups, the mean values of plasma glucose (mg %) and serum globulin (g %), showed a decreasing trend, while the mean value of serum TP (g %), serum A:G ratio, serum urea (mg %), serum creatinine (mg %), serum ALP (KA units), SGOT (units/ml.), SGPT (units/ml), serum T $_3$ and T $_4$ (ng/ml) showed an increasing trend with the advancement of feeding period. The cumulative period mean values of serum TP (6.15 to 6.20 g %), serum albumin (3.07 to 3.18, g %), serum globulin (2.98 to 3.09, g %), serum A:G ratio (1.03 to 1.10), serum ALP (23.15 to 23.63, KA units), serum T $_3$ (1.20 to 1.23 ng/ml) and serum T $_4$ (21.33 to 21.88 ng/ml) were comparable among the groups. The cumulative period mean plasma glucose (mg %) in group III (57.28) was similar to groups I (55.31) and II (59.41), however, the cumulative period mean plasma glucose in group II was significantly (p $_3$ and T $_4$ values in groups I (1.21 and 21.81), II (1.23 and 21.42) and III (1.20 and 21.33) were comparable. From the present study it may be concluded that feeding of AWS treated with and without HCI to growing male buffalo calves for 180 days had no significant adverse effect on blood biochemical profile.

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  7. [국내논문]   Changes in Serum Protein Profile, Cholesterol and Blood Glucose during Endotoxic Shock in Buffalo Calves Supplemented with Vitamin E and Selenium  

    Sharma, Neeraj (Department of Veterinary Biochemistry, College of Veterinary Science ) , Singha, S.P.S. (Department of Veterinary Biochemistry, College of Veterinary Science ) , Ahuja, C.S. (Department of Veterinary Biochemistry, College of Veterinary Science)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 192 - 196 , 2005 , 1011-2367 ,

    초록

    A study was conducted to monitor the changes in serum protein profile, cholesterol and blood glucose during endotoxic shock in buffalo calves and also to assess the role of prophylactic supplementation of vitamin E and selenium in alleviating the endotoxic effects. Fifteen male buffalo calves (6-8 months of age) were divided into three groups: Group I (control)-infused with 0.9% saline solution; Group II-infused with E. coli endotoxin at 5 ${\mu}g/kg$ body weight in normal saline solution; Group III- supplemented prophylactically with 250 mg vitamin E and 7.5 mg selenium by i/m injections at weekly intervals for one month prior to the induction of endotoxic shock. The blood samples were collected at 0, 1, 3, 6, 9, 12, 24, 48 and 72 h after the induction of shock. Endotoxin caused a significant (p

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  8. [국내논문]   Effects of Feeding Wastes from Brassica Species on Growth of Goats and Pesticide/Insecticide Residues in Goat Meat   피인용횟수: 1

    Ngu, Nguyen Trong (Department of Animal Husbandry, College of Agriculture, Cantho University ) , Ledin, Inger (Department of Animal Husbandry, College of Agriculture, Cantho University)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 197 - 202 , 2005 , 1011-2367 ,

    초록

    The effects of feeding Brassica vegetable market wastes on intake, body weight changes and pesticide/insecticide residues in products of goats were evaluated in two experiments. In the first experiment (Exp. 1) 16 goats (Bach Thao, 9 to 10 kg, 3 months old, 9 males and 7 females) were fed four diets with leaves either from cabbage (Brassica oleracea var. capitata), cauliflower (Brassica oleracea var. botrytis) or Chinese cabbage (Brassica campestris subsp. pekinensis) with 30% of Para grass. The control group was fed 100% Para grass. All diets contained soybean waste as a supplement and the experiment lasted for 136 days. In the second experiment (Exp. 2) 24 goats (Bach Thao, 12 to 14 kg, all males) were assigned to three treatments in a completely randomised block design based on initial body weight. The goats were fed cabbage waste supplemented with 200 g or 100 g DM (dry matter) of concentrate. Para grass with 100 g DM concentrate supplementation was used as a control group. The experiment lasted for 90 days and at the end of the study, 12 goats were slaughtered for pesticide/insecticide analysis. Due to low DM content (5.3 and 3.7%, respectively) feed intakes of cabbage and Chinese cabbage groups were lower than those of other groups in the experiment. The highest feed intake and body weight gain was obtained when the goats were fed cauliflower (529 g DM/day and 87.5 g/day, respectively). In Exp. 2 total intake of cabbage and concentrate was similar (484 g and 453 g DM/day) whether the goats were fed 100 or 200 g concentrate/day but lower than that of Para grass and concentrate probably due to the low DM content of the cabbage (5.9%). Crude protein intake (79 g to 86 g/day) and body weight gain (70 g to 88 g/day) was not significantly different between treatments. Adding concentrate consequently resulted in higher DM intake than in Exp. 1 but did not result in any higher growth rate. Three of the pesticide/insecticide residues tested were found in cabbage, Alpha-Cypermethrin, Bassa-Fenobucarb and Dimethoate with levels of 0.175, 0.074 and 0.028 mg/kg fresh cabbage respectively. Weight of livers from goats fed cabbage was about 90 g higher than from goats fed Para grass but no pesticide/herbicide residues were found in meat or liver.

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  9. [국내논문]   Chemical Composition and Its Relationship to In vitro Gas Production of Several Tannin Containing Trees and Shrub Leaves   피인용횟수: 1

    Kamalak, Adem (Kahramanmaras Sutcu Imam University, Faculty of Agriculture, Department of Animal Nutrition ) , Canbolat, Onder (Bursa Uludag University, Faculty of Agriculture, Department of Animal Nutrition ) , Gurbuz, Yavuz (Kahramanmaras Sutcu Imam University, Faculty of Agriculture, Department of Animal Nutrition ) , Ozay, Osman (Kahramanmaras Sutcu Imam University, Faculty of Agriculture, Department of Animal Nutrition ) , Ozkose, Emin (Kahramanmaras Sutcu Imam University, Faculty of Agriculture, Department of Animal Nutrition)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 203 - 208 , 2005 , 1011-2367 ,

    초록

    The aim of this experiment was to determine the chemical composition of six commonly utilized fodder trees and shrub species in Turkey, namely Glycrrhiza glabra L, Arbutus andrachne, Carpinus betilus, Juniperus communis, Quercus libari L and Pistica lentiscus and its relationship with gas production and estimated parameters when incubated with rumen fluid in vitro. There were significant (p ${\mu}_{24}$ ) of Pistica lentiscus was significantly (p $T_{50}$ ) of Juniperus communis was significantly (p $T_{90}$ ) of Juniperus communis was significantly lower than the others except for Pistica lentiscus. The metabolizable energy (ME) contents of leaves ranged from 8.86 to 10.39 MJ $kg^{-1}$ DM. The results obtained in this study suggested that browse species had a significant effect on chemical composition, gas production and estimated parameters of leaves. Leaves from Glycrrhiza glabra L with a considerable amount of CP had a high rank value in terms of ME. Therefore leaves from Glycrrhiza glabra L may have a high potential value for small ruminant animals in terms of rumen and whole digestibility. Leaves from other species studied require protein supplementation when they are the only feed consumed by ruminant animals.

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  10. [국내논문]   Effects of Substituting Concentrates with Dried Leftover Food on Growth and Carcass Characteristics of Hanwoo Steers   피인용횟수: 1

    Paek, B.H. (National Livestock Research Institute, RDA ) , Kang, S.W. (National Livestock Research Institute, RDA ) , Cho, Y.M. (National Livestock Research Institute, RDA ) , Cho, W.M. (National Livestock Research Institute, RDA ) , Yang, C.J. (Department of Animal Science and Technology, Sunchon National University ) , Yun, S.G. (National Livestock Research Institute, RDA)
    Asian-Australasian journal of animal sciences v.18 no.2 ,pp. 209 - 213 , 2005 , 1011-2367 ,

    초록

    This study was conducted to determine the optimum substitution level of dried leftover food (DLF) in formula feed for Hanwoo (Korean Native Cattle) steers. A total of forty growing steers were assigned to 5 treatments based on substitution level of DLF (at 0, 25, 50, 75 and 100% level of formula feed). The experiment was carried out with growing steers from 6 months of age to 24 months of age. Average daily gain (ADG) was not affected by DLF substitution level up to 75% of formula feed. However ADG decreased at 100% substitution level. Daily feed intakes were similar among treatments but the amount of feed per 1 kg gain increased with increasing substitution level of DLF. Dressing percentage was around 62% in all treatments without any significant differences. Proportion of quality beef higher than grade 1 was the greatest from animals fed 25% substitution level of DLF. Economic efficiency for Hanwoo steer operator was the highest with 50% substitution level of DLF.

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