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Asian-Australasian journal of animal sciences 24건

  1. [국내논문]   Relationship between Genetic Variants of Mitochondrial DNA and Growth Traits in Hanwoo Cattle   피인용횟수: 3

    Jeon, G.J. (Hanwoo Experiment Station, National Livestock Research Institute ) , Chung, H.Y. (Hanwoo Experiment Station, National Livestock Research Institute ) , Choi, J.G. (Hanwoo Experiment Station, National Livestock Research Institute ) , Lee, M.S. (Hanwoo Experiment Station, National Livestock Research Institute ) , Lee, C.W. (Hanwoo Experiment Station, National Livestock Research Institute ) , Park, J.J. (Hanwoo Experiment Station, National Livestock Research Institute ) , Ha, J.M. (Hanwoo Experiment Station, National Livestock Research Institute ) , Lee, H.K. (Hankyong National University ) , Sung, H.H. (Hanwoo Experiment Station, National Livestock Research Institute)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 301 - 307 , 2005 , 1011-2367 ,

    초록

    Genetic variants of Hanwoo mtDNA in the region of cytochrome oxidase subunit I, II and III complex were detected using restriction enzymes. PCR primers were designed based on the bovine mtDNA sequence, and 6 primer sets (Mt4, Mt5, Mt6, Mt7, Mt8 and Mt9) were used. A total of 20 restriction enzymes were used, and 6 restriction enzymes, which were Hinf I, Pvu II, Rsa I, Eco RI, Bgl II, and Msp I, showed genetic polymorphisms. Significant associations between genetic variants and weight traits were observed at WT15 (p

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  2. [국내논문]   Odds Ratio and Probability of Conception of Holstein Friesian Dairy Cows in the Kingdom of Saudi Arabia  

    Ali, A.K.A. (Dept. of Animal Production, College of Agriculture, King Saud University ) , ALEssa, A.A. (Dept. of Animal Production, College of Agriculture, King Saud University ) , Alshaikh, M.A. (Dept. of Animal Production, College of Agriculture, King Saud University ) , Aljumaah, R.S. (Dept. of Animal Production, College of Agriculture, King Saud University ) , Al-Haidary, A.A. (Dept. of Animal Production, College of Agriculture, King Saud University ) , Alkraidees, M.S. (Dept. of Animal Production, College of Agriculture, King Saud University)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 308 - 313 , 2005 , 1011-2367 ,

    초록

    Logistic Regression Analysis was used to compute the odds ratio (OR) and probability of conception of Holstein dairy cows of AL-MARAIE company. Data consisted of 103,778 reproductive records collected from three farms in the central region in the Kingdom of Saudi Arabia. Records were classified according to lactation number, season of calving and milk level. At first lactation, OR of first service was 0.63 of other services and probability of pregnancy from first services was 0.39. Odds ratio increased to 1.72 at fourth lactation or probability of conception reached 0.63. The probability of conception increased from 0.39 for cows inseminated at first services to 0.75 at fifth service insemination. Odds ratio of cows calving in winter were higher than those calving in summer. Odds ratio of conception of low producing cows is about twice as likely to occur from first service as from other services. However, OR of conception of high producing cows was higher than one (probability=0.56) from first service and increased to 1.63 (probability=0.65) from third service. Odds ratio was in favor of the right uterus horn where probability of conception from first service was slightly greater than 50% in first and second lactations and less than 50% in favor of left horn in later lactations.

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  3. [국내논문]   Comparison of Two Different Schemes of Once-weekly Ovum Pick Up in Dairy Heifers   피인용횟수: 1

    Yang, Xiao-Yu (Fujian Medical University ) , Li, Hua (Institute of Medical Genetics, Shanghai Jiao Tong University ) , Huang, Wen-Ying (Institute of Medical Genetics, Shanghai Jiao Tong University ) , Huang, Shu-Zhen (Institute of Medical Genetics, Shanghai Jiao Tong University ) , Zeng, Yi-tao (Institute of Medical Genetics, Shanghai Jiao Tong University)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 314 - 319 , 2005 , 1011-2367 ,

    초록

    To compare two different schemes, continuous scheme (CS) and discontinuous scheme (DCS), of once-weekly ovum pick up (OPU) with ultrasound-guided follicular puncture technique, Holstein heifers were randomly divided into two groups of five. After characterization of their two normal estrous cycles, the heifers were subjected to consecutive 20 weeks of once-weekly OPU under two schemes: the CS (one week interval between continuous OPU, total 100 OPU sessions performed) and the DCS (OPU fixed to the day 3 and day 10 of each estrus). Then, the status of ovaries and artificial insemination results were observed. On oocyte yield, the total number of punctured follicles using DCS was lower than that using CS, but the mean numbers of punctured follicles and recovered oocytes per session were higher in DCS than CS group. So the total number of recovered oocytes was similar in both groups. There were also no differences in the quality of recovered oocytes, nor in the developmental ability of oocytes fertilized in vitro between groups. The heifers in the DCS group showed regular estrous cycles with stable estrous signs through the periods of before, during, and after OPU, while those in CS group showed longer estrous cycles and less estrous signs during and/or after OPU compared with before period. Furthermore, the mean number of inseminations required for obtaining pregnancy after completion of the experiments was lower in DCS than CS group. The research demonstrates that similar quantity and quality oocytes can be achieved, and the side effects on donors are lower in DCS that needs fewer OPUs than CS group, and DCS is superior to CS.

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  4. [국내논문]   Effect of Different Level of Monensin Supplemented with Cold Process Urea Molasses Mineral Block on In vitro Rumen Fermentation at Different Days of Adaptation with Monensin   피인용횟수: 3

    De, Debasis (lCAR Research Complex for NEH Region, Sikkim Centre ) , Singh, G.P. (Division of Dairy Cattle Nutrition, National Dairy Research Institute)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 320 - 325 , 2005 , 1011-2367 ,

    초록

    Effect of period of adaptation and levels of monensin were studied for microbial fermentation/ digestibility to find out the optimum period of adaptation of monensin in rumen and suitable level of monensin in wheat straw+concentrate and wheat straw+UMMB diet. The mean digestibility of dry matter was decreased upto T-3 treatment (49.17%), however, digestibility of DM was affected upto period (P-2). NDF digestibility was affected due to treatment under P1 and P2 (p

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  5. [국내논문]   Effect of Protein Sources on Rumen Microbial Protein Synthesis Using Rumen Simulated Continuous Culture System   피인용횟수: 2

    Joo, J.W. (Department of Companion Animal and Animal Resources Science, Joongbu University ) , Bae, G.S. (Department of Animal Science and Technology, Chung-Ang University ) , Min, W.K. (Department of Animal Science and Technology, Chung-Ang University ) , Choi, H.S. (Department of Animal Science and Technology, Chung-Ang University ) , Maeng, W.J. (Nutrition Bank Research Institute ) , Chung, Y.H. (Department of Companion Animal and Animal Resources Science, Joongbu University ) , Chang, M.B. (Department of Animal Science and Technology, Chung-Ang University)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 326 - 331 , 2005 , 1011-2367 ,

    초록

    A rumen simulated continuous culture (RSCC) system was used to study the influence of supplementation of the three different types of protein sources such as urea, casein and soy protein on rumen microbial synthesis in terms of rumen microbial synchronization. The urea treatment showed the highest pH value. Ammonia nitrogen concentration was rapidly increased after feeding and not significantly different in the urea treatment (13.53 mg/100 ml). Protozoa numbers were not significantly different for soy protein and casein treatment compared to urea treatments during incubation. The average concentration of total VFA (mMol) was not detected with significant difference among treatments, but iso-butyrate production showed the highest for soy protein treatment among treatments (p

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  6. [국내논문]   Effect of Transinoculation of Goat Rumen Liquor on Degradation and Metabolism of Mimosine in Sheep Fed with Leucaena leucocephala Leaves  

    Vaithiyanathan, S. (Central Sheep and Wool Research Institute ) , Sheikh, Q. (Central Sheep and Wool Research Institute ) , Kumar, Ravindra (Central Sheep and Wool Research Institute)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 332 - 339 , 2005 , 1011-2367 ,

    초록

    The effect of transinoculation of goat rumen liquor into sheep rumen on mimosine toxicity was studied. One adult Kutchi male goat having higher mimosine degradation capacity than sheep was gradually adapted to Leucaena leucocephala (Leucaena) leaves by feeding increasing level of eucaena leaves supplementation for 1 month. Six Bharat Merino rams (12-18 months of age) were divided into two equal groups with (group I) or without (group II) infusion of 200 ml of goat rumen liquor per animal. The mimosine degradation in groups I and II were 3.04 and 2.31; 3.90 and 3.73 mg per day per 10 ml rumen liquor respectively after 1 and 2 weeks of leucaena feeding leaves. Total rumen bacterial population in RGCA medium and in a selective medium containing iron showed an increasing trend in both groups, while the bacterial population growing in the presence of cellulose showed a decreasing trend. Animal performance data did not show any adverse effect. Results revealed that transinoculation of rumen liquor from leucaena leaves adapted goat to sheep rumen did not help to improve mimosine degradation in the sheep. The sheep transinoculated with goat rumen liquor displayed no in vivo improvements in nutrient utilization vis-a-vis mimosine metabolism.

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  7. [국내논문]   Influence of Ripening Stages on the Quality of Whole Crop Silage and Grain Silage of Fodder Rice   피인용횟수: 1

    Maruyama, S. (Gifu Prefectural Livestock Research Institute ) , Yokoyama, I. (Gifu Prefectural Livestock Research Institute ) , Asai, H. (Gifu Prefectural Livestock Research Institute ) , Sakaguchi, S. (Gifu Prefectural Livestock Research Institute ) , Ohtani, T. (Gifu Prefectural Livestock Research Institute ) , Yokota, H. (Laboratory of Animal Feeds and Production, University Farm, Graduate School of Bioagricultural Sciences Nagoya University ) , Kita, K. (Laboratory of Animal Feeds and Production, University Farm, Graduate School of Bioagricultural Sciences Nagoya University)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 340 - 344 , 2005 , 1011-2367 ,

    초록

    In high-income Asian countries like Korea and Japan, per capita rice consumption has declined because of the change in consumer' favorite foods from rice to high-cost quality foods. This has forced farmers to reduce rice production. Although fodder rice could be another option to be cultured by farmers, available information concerning rice grain silage has been limited. In the present study, therefore, the difference in the quality of fodder rice silage prepared from either whole crop or grain at different ripening stages was compared. Various supplements were also added into whole crop and grain silages of fodder rice before ensiling, and thereafter, the palatability of prepared silages was determined by beef cattle. At ear emergence stage, the pH values for both grain and whole crop silages were approximately 4.5. In both grain and whole crop silages, the pH values were significantly increased by progressing ripening stages from milk-ripe stage to yellow-ripe stages, and the increase in pH value for grain silage was faster than that for whole crop silage. In the grain silage, the higher lactic acid (LA) content in grain silage seemed to be, the lower pH value was. Both in grain and whole crop silages, pH was significantly decreased by supplementation with LA bacteria. There were no significant differences in feed intake among any treatment groups.

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  8. [국내논문]   Feeding of Whole Sugar Cane to Dairy Cattle during the Dry Season  

    Suksombat, W. (School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology ) , Mernkrathoke, P. (School of Animal Production Technology, Institute of Agricultural Technology, Suranaree University of Technology)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 345 - 349 , 2005 , 1011-2367 ,

    초록

    A study was conducted to determine the effect of feeding chopped whole sugar cane compared to corn silage on performances of dairy cows during the dry season. Twenty four Holstein Friesian crossbred (>87.5% Holstein Friesian) lactating dairy cows in mid lactation; averaging 16.5 ${\pm}$ 2.0 kg of milk, 121 ${\pm}$ 22 days in milk, 54.5 ${\pm}$ 4.5 months old and 440 ${\pm}$ 31 kg live weight, were stratified for milk yield, days in milk, age, stage of lactation and body weight, and then randomly allocated to two treatment groups (12 cows in each group). The first group was fed corn silage together with commercial concentrate while the second group was fed chopped whole sugar cane together with commercial concentrate. All cows consumed similar DM, however, cows on corn silage consumed more CP while cows on chopped whole sugar cane consumed more $NE_{LP}$ . No significant differences in performances between the two groups were observed except for final live weight and body weight change. Cows on chopped whole sugar cane showed higher final live weight and gained more weight than cows on corn silage. The present study clearly indicates that chopped whole sugar cane can be fed to lactating dairy cows, while giving similar milk yield to corn silage.

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  9. [국내논문]   Effect of Intraruminal Sucrose Infusion on Volatile Fatty Acid Production and Microbial Protein Synthesis in Sheep   피인용횟수: 1

    Kim, K.H. (Nutrition and Physiology Division, National Livestock Research Institute, RDA ) , Lee, S.S. (College of Agriculture and Life Science, Gyeong Sang National University ) , Kim, K.J. (Department of Animal Resources Science, Kongju National University)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 350 - 353 , 2005 , 1011-2367 ,

    초록

    Effects of sucrose supplement on the pattern of VFA production and microbial protein synthesis in the rumen were examined in sheep consuming basal diet of grass silage (2.5 kg fresh wt/d) that was provided in 24 equal meals each day by an automatic feeder. Four mature wethers were allocated to four experimental treatments in a 4 ${\times}$ 4 Latin square design with periods lasting 14 days. The treatments were (1) the basal diet, (2) supplemented with 150 g sucrose and 7.0 g urea, (3) 300 g sucrose and 13 g urea, and (4) 450 g sucrose and 20 g urea given as a continuous intraruminal infusion for 24 h. All infusions were given in 2 litres of aqueous solution per day using a peristaltic pump. The effect of sucrose level on rumen mean pH was significantly linear (p $0.3501^{**}$ ) with the amount of microbial N produced and a significant positive correlation (R2= $0.2735^{**}$ ) with the efficiency of microbial growth.

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  10. [국내논문]   Effects of Strains of Saccharomyces cerevisiae and Incubation Conditions on the In vitro Degradability of Yeast and Roughage  

    Ando, S. (Department of Livestock and Grassland Science, National Agricultural, Research Center for Western Region ) , Nishiguchi, Y. (Department of Livestock and Grassland Science, National Agricultural, Research Center for Western Region ) , Hayasaka, K. (Department of Livestock and Grassland Science, National Agricultural, Research Center for Western Region ) , Yoshihara, Y. (Shimane Prefectural Animal Husbandry Experiment Station ) , Takahashi, J. (Department of Animal Science, Obihiro University of Agriculture and Veterinary Medicine ) , Iefuji, H. (Nationl Research Institute of Brewing)
    Asian-Australasian journal of animal sciences v.18 no.3 ,pp. 354 - 357 , 2005 , 1011-2367 ,

    초록

    The in vitro degradability of yeast and the effect of yeast on the in vitro degradability of forage may differ in terms of the specific yeast strains or their incubation conditions. Thus in experiment 1, two strains of sake yeast (strainK7 and strainK9) and one strain of bakers' yeast (KY5649) were incubated in an aerobic condition. In experiment 2, aerobically or anaero bically incubated K7 was used for investigating the in vitro degradability of yeast, the effect of yeast on the in vitro degradability of forage, and the degradability of yeast by pepsin and pronase treatment. The in vitrodegradability of bakers' yeast was significantly (p

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