• Korean Journal of Agricultural Science
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• v.25 no.1
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• pp.107-117
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• 1998

Ths studies was carried out to investigate the processing possibility of pheasant meat extracts treated with proteases. The crude protein, aminonitrogen, degree of hydrolysis, yield and amino acid composition of pheasant meat extracts when it was treated with proteases at various temperature and reaction time were analyzed. The crude protein contents of pheasant meat extracts processed in $130^{\circ}C$ were more than when it was done in $100^{\circ}C$, but the contents of aminonitrogen were not quite different between two processing temperature. The content of crude protein and aminonitrogen when pheasant meat was hydrolyzed with protease NP and prozyme A. The yields of pheasant meat extracts, when pheasant meat were treated at $100^{\circ}C$ and $130^{\circ}C$, were from 2.24 to 7.10% and from 5.51 to 10.45%, respectively. And the yield of extraction depended on extraction temperature, kinds of enzyme, amount of enzyme, extraction time. The content of aminonitrogen in pheasant meat extracts treated with enzyme was much higher than any other treatments. And it depended on amount of enzyme, extraction time and temperature. The amount of the amino acids in pheasant meat extracts treated by protease NP were eminently higher than by heat at $100^{\circ}C$ or $130^{\circ}C$.

• Korean Journal of Poultry Science
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• v.32 no.2
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• pp.97-100
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• 2005

Mast cells have been studied extensively in various animals including rats and mice, whereas little is known the morphological data about pheasant mast cells. Here, morphological features of Korean pheasant mast cells are described in this study using light and electron microscopes. For light microscopy, mast cells had many metachromatic granules stained with toluidine blue in the cytoplasm. The fixation with $10\%$ neutral buffered formalin blocked staining of most mast cells but a modified Karnovsky solution proved to be a good fixative. In Korean pheasants, toluidine blue stained more mast cells than did alcian blue. For electron microscopy, the mast cells of the Korean pheasant were round, oval, spindle-like and irregular form and occasionally had a few short cytoplasmic processes. These cells had membrane-bounded granules and poorly developed organells. Some granules in the cytoplasm of the mast cells had bilayer membrane. Most granules were round shape and the membrane of several granules was concave or convex. The granules were composed of three parts, homogenous, particulate and reticular pattern.

• Korean Journal of Poultry Science
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• v.27 no.3
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• pp.255-258
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• 2000

This study was carried out to investigate the distribution and morphological properties of mast cells in the ileum of Korean pheasant. In the ileum mast cells were located in the lamina propria of mucoase. The cells were mainly oval with irregular cell surface occasionally spindle-like or triangular in shape. Some mast cells had one or more tail-like long cytoplasmic processes. All mast cells had many blue granules stained by toluidine blue in the cytoplasm.

• Journal of Wetlands Research
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• v.16 no.2
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• pp.187-192
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• 2014

This study is on the characteristics of habitat use of Pheasant-tailed Jacana Hydrophasianus chirurgus in Upo-wetland from June to August in 2013. The purpose is population management of Pheasant-tailed Jacana. Four nests were founded which are located in $56.2{\pm}16.37m$ from the waterside. Pheasant-tailed Jacana made their nests above Euryale ferox which consists with water plants such as Salvinia natans, Spirodela polyrhiza, Ceratophyllum demersum, Hydrocharis duvia and so on. Human beings seem to be the biggest obstacle of their breeding, according to this, Pheasant-tailed Jacana moved their eggs. Only two out of four nests, they moved their eggs and the distance was 1 to 2 meters from the nests. Since plant community of Euryale ferox is extensively distributed and water level also keep stable in Upo-wetland, the number of Pheasant-tailed Jacana coming to Upo-wetland is expected to increase every year. In the past, the number of Pheasant-tailed Jacana coming to Korea was too little to include management plan, but now, we need to manage them because of their population growth and the regular advent.

• Korean Journal of Environmental Biology
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• v.26 no.2
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• pp.66-75
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• 2008

The level of genetic diversity and genetic relationships among Korean ring-necked pheasant (Phasianus colchicus karpowi) habitat and subspecies have been investigated based on Inter Simple Sequence Repeat (ISSR) markers. Wild and domesticated Korean ring-necked pheasant, hybrids between domesticated Korean ring-necked and foreign subspecies, and four foreign subspecies; Chinese ring-necked (P. c. torquatus), Melanistic mutant (P. c. mut. tenebrosus), XL White (P. c. mut) and Southern green (P. c. versicolor) were used for comparison. On the basis of the results of AMOV A, 94.08% of genetic diversity in Korean ring-necked was allocated among individuals within habitat differences. Estimate of $\Phi$st, which represents the degree of genetic differentiation among habitats was 5.9%. Based on the dendrogram reconstructed by UPGMA, Yangpyung habitat of the eight habitats turned out to be distinct from others habitat. Interestingly, domesticated Korean ring-necked and hybrid mixture showed closer genetic relationship with four foreign subspecies than Korean ring-necked. As a consequence of AMOVA, 96.63% of genetic diversity in four foreign subspecies was allocated among individuals within subspecies. Estimate of $\Phi$st representing the degree of genetic differentiation among subspecies was 3.4%, which was lower than that among habitats of Korean ring-necked. The lower level of genetic difference among four foreign subspecies showed that these subspecies were genetically closer even though they were morphologically classified into four different subspecies. When seven habitats of Korean ring-necked pheasant and four foreign subspecies were divided into Korean and Foreign Pheasant Groups, respectively, more than 17% of genetic diversity was allocated between groups (about 4% among habitats/subspecies within groups). This observation implied that Korean ring-necked pheasant is genetically quite different from four foreign subspecies. On the basis of cluster analysis, three foreign subspecies (Chinese ring-necked pheasant, Melanistic mutant pheasant, and XL White pheasant) formed a distinct group with domesticated Korean ring-necked pheasant and hybrid mixture at 98% confidence interval.

• Korean Journal of Animal Reproduction
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• v.23 no.1
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• pp.45-51
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• 1999

The morphological study was carried out to classify the spermatogenic germ cells of the seminiferous tubule in Korean Native Pheasant during the breeding season. The results were as follows : 1. The spermatogonia can be classified into the three types of A, In(intermediate) and B. 2. The primary spermatocyte can be classified into the five types as preleptotene, leptotene, zygotene, pachytene and diakinesis. 3. The maturing processes of nucleus of spermatid can be divided into seven steps. The round shape of the spermatid was changed to the elongated form during the spermiogenesis. This observation may be useful to the study of the breeding cycles in the Korean Native Pheasant.

• Korean Journal of Poultry Science
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• v.29 no.3
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• pp.177-183
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• 2002

The study was designed to investigate the aspects of the goblet cell of the oviduct in laying Korean ring-necked pheasants by histochemical methods (PAS, alcian blue-PAS, alcian blue pH 2.5, alcian blue pH 1.0, and aldehyde fuchsin-alcian blue stain). Twelve laying Korean ring-necked pheasants were used. The results were summarized as follows. The goblet cell of the oviduct of the Korean ring-necked pheasant contained sulfated acid mucosubstances and neutral mucosubstances in the infundibulum. The compounds of sulfated acid mucosubstances, nonsulfated acid mucosubstances, and neutral mucosubstances are present in goblet cells of the magnum, vagina and openings of the tubular gland of the uterus of the oviduct in the Korean ring-necked pheasant. The goblet cell of the isthmus and uterus of the oviduct of the Korean ring-necked pheasant contained neutral mucosubstances except openings of the tubular gland of the uterus. The histochemical characteristics of secretory granules of goblet cells in oviduct of the Korean ring-necked pheasant were not related to the position of eggs in oviduct.

• Korean Journal of Poultry Science
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• v.27 no.3
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• pp.259-266
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• 2000

This study was carried out to investigate the embryonic developmental changes of the pineal gland during incubating period in the Korean pheasant. The pheasant embryos and fetuses were killed after 3, 4, 6, 9, 12, 15, 19 and 23 (hatching) days of incubation. The morphological characteristics of a pineal gland were determined in all embryos and fetuses using the whole - mount technique, light microscopy and morphometry. The time of the first apparition of the pineal anlage, as a derivative of the roof of the third ventricle, was fixed at 3 days of incubation. The pineal vesicles appeared as solid mammilliform projections, which subsequently presented a central lumen, at 4 days of incubation. The pineal parenchyma was composed of the tubular pineal recess, the lobules surrounded with septum originating from the capsule and the follicles possessed central lumen at 23 days of incubation. The length, width and area of the pineal gland were increased markedly at 9 and 15 days of incubation. These results suggest that the pineal recess has an important role in the pineal development after hatching.

• Korean Journal of Veterinary Service
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• v.16 no.2
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• pp.91-96
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• 1993

In order to monitor the parasites, fecal samples were taken from turkey (n=157), helmeted guineafowl(n=149), pheasant(n=190) and duck(n=190) in Chonbuk province. The identification of the parasites were determined by the fecal examination using the fluatation method and microscopical examination. The results were obtained as follows；1. The detection rate oi the parasites from 4 species of poutry was 47.2%(n=324 heads) out of 686 heads. 2. The identification rate was 85.9% in helmeted guineafowl, 63.2% in pheasant, 44.6% in turkey and 3.2% in duck, in order. 3. The mixed infection rate such as single, double, triple and quadrupl was 25.4%(174 heads), 14.1%(97 heads), 7.3%(50 heads) and 0.4%(3 heads), respectively. 4. The parasites isolated were identified as Capillaria spp. in 225 heads, Eimeria spp in 169 heads, Heterakis gallinarum in 116 heads, Ascaridia galli in 16 heads, Hymenolepis spp. in 3 heads and Strongyloides avium in 1 head, in order.

• Korean Journal of Agricultural Science
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• v.23 no.1
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• pp.90-98
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• 1996

In order to obtain the basic information for new food product development from pheasant, wild duck(chhungdung), and Ogol fowl, which are called as special poultry, general components,fatty acid amino acid and minerals composition were analyzed. 1). The general compositions were 71.2-74.1% of water, 23.3-26.4% of protein, 1.0-2.4% fat, and 1.1-1.4% of ash in the pheasant, 73.8-76.4% of water, 18.6-19.6% of protein, 2.7-6.8% of fat, and 0.8-1.6% of ash in the wild duck, and 71.4-72.3% of water, 20.8-22.7% of protein, 1.9-6.3% of fat, and 1.0-1.2% of ash in the Ogol fowl, repectively. 2).In the pheasant and wild duck meat, the composition of unsaturated and saturated fatty acid were 60-64%,36-40%, respectively, and olec, palmitic, linolec, and stearic acid were most abundant in this order. But, in Ogol fowl, 72-76% and 24-28% were belong to the unsaturated fatty acid, respectively. 3). Amino acid contents in its order of relative amount were glutamic acid, alanine, aspatic acid, and glycine for the pheasant, glutamic acid, glycine, alanine, and aspatic acid for the wild duck, and lysine, glutamic acid, and aspatic acid for the Ogol fowl, repectively. 4).The mineral composition in the pheasant and wild duck were potassium, phosphorus, sodium, magnesium, and calcium, but in the Ogol fowl, potassium, sodium, magnesium, phosphorus, calcium were the most abundant in this order, repectively.