• Korean Journal of Veterinary Research
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• v.38 no.3
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• pp.488-496
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• 1998

Somatotropes, mammotropes and somatomammotropes of the Korean native goat hypophysis were studied by double immunoelectron microscopy using antisera to growth hormone(GH) and prolactin(PRL), and protein A-gold particles of different sizes. Mammotropes were round or oval in shape, and contained round and electron dense secretory granules. The size of secretory granules was variable from 460nm to 680nm in diameter. Somatotropes were elliptical or triangular in shape and the oval nucei were located eccentrically at the periphery of the cell. Secretory granules of the cell were oval in shape and clearly distinguished from round granules of mammotropes. The size of granules was 320~680nm in diameter, smaller than that of mammotropes. Somatomammotropes contained round or oval secretory granules. The granules had intermediate size between somatotropes and mammotropes. Some of granules contained both GH and PRL, while the others contained only one of them.

• Korean Journal of Veterinary Research
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• v.34 no.4
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• pp.705-714
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• 1994

This study was carried out to identify the craniometric characteristics of the skull of Korean native goat. The results were as follows; The skull index, cranial index, facial index, right orbital index and left orbital index were $55.86{\pm}2.14$, $59.97{\pm}3.68$, $107.03{\pm}5.71$, $92.22{\pm}4.54$and $90.47{\pm}5.48$, respectively. The ratio of facial length to cranial length was 1:1.15 and the ratio of length of cranial base to palatal length was 1:1.35. The skull length was more correlated to the facial length than to the cranial length(p<0.01). The skull width was more correlated to the width between foramina supraorbitales than to the width between foramina infraorbitales. It also showed negative correlation to the medial width between bases of processus cornualis but positive correlation to the lateral width between bases of processus cornualis(p<0.01). The width between tips of both horns showed high positive correlation to the medial width between processus cornualis, but negative correlation to the lateral width(p<0.01).

• Asian-Australasian Journal of Animal Sciences
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• v.25 no.3
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• pp.428-434
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• 2012

The aim of this study was to determine the quality of modified atmosphere (MA) packaged meat from Pomeranian rams slaughtered at 50 and 100 days of age. Determined: chemical composition, physicochemical and sensory properties of meat, and the fatty acid profile of intramuscular fat. Meat from 100-d-old lambs was characterized by a significantly higher content of dry matter, total protein and crude fat, a darker color and higher physiological maturity ($p\leq0.01$). Meat from younger lambs was marked by a better water-holding capacity ($p\leq0.05$), a lower energy value and higher concentrations of monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA). An increase in the content of dry matter, total protein and ash, and energy value was noted in MA-stored meat. Meat pH decreased over MA storage and the sensory properties deteriorated. The studied meat remained safe from microbial contamination during storage.

• Asian-Australasian Journal of Animal Sciences
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• v.26 no.6
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• pp.886-895
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• 2013

This study was conducted to explore the antioxidant potential and functional value of guava (Psidium guajava L.) powder in muscle foods. Guava powder was used as a source of antioxidant dietary fibre in sheep meat nuggets at two different levels i.e., 0.5% (Treatment I) and 1.0% (Treatment II) and its effect was evaluated against control. Guava powder is rich in dietary fibre (43.21%), phenolics (44.04 mg GAE/g) and possesses good radical scavenging activity as well as reducing power. Incorporation of guava powder resulted in significant decrease (p<0.05) in pH of emulsion and nuggets, emulsion stability, cooking yield and moisture content of nuggets while ash and moisture content of emulsion were increased. Total phenolics, total dietary fibre (TDF) and ash content significantly increased (p<0.05) in nuggets with added guava powder. Product redness value was significantly improved (p<0.05) due to guava powder. Textural properties did not differ significantly except, springiness and shear force values. Guava powder was found to retard lipid peroxidation of cooked sheep meat nuggets as measured by TBARS number during refrigerated storage. Guava powder did not affect sensory characteristics of the products and can be used as source of antioxidant dietary fibre in meat foods.

• Asian-Australasian Journal of Animal Sciences
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• v.17 no.5
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• pp.583-587
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• 2004

The 7 sheep microsatellite markersOarFCB48, OarAE101, MAF33, OarFCB11, MAF70, OarFCB304 and OarFCB128, which were located on chromosomes 2, 4, 6, 9, 17 and 19, were selected to PCR in Hu sheep, Tong sheep and their closely related species,the goat. They were studied with the amplifying result of 7 microsatellite sites of Hu Sheep, Tong Sheep and goats, the data of allele number and range of allele' size of amplifying were analyzed with ANOVA. The results showed that there were no significant differences (p<0.05) in microsatellite DNA sites among 3 populations. Concerning the conservation of microsatellites in closely related species, selecting microsatellite sites located on the chromosome where the Robertsonian fusion was caused between sheep and goat, may be used in research into genetic differentiation and evolutionary relationships between sheep and goats.

• Asian-Australasian Journal of Animal Sciences
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• v.7 no.2
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• pp.279-288
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• 1994

Three experiments were conducted with female Japanese Saanen goats to investigate the effects of rumen protected methionine (RPMet) on N utilization and whole-body protein turnover. Whole-body leucine flux from which whole-body protein turnover rates were derived was measured by primed- continuous infusion of L-[$^{15}N$] leucine in combination with gas chromatography-mass spectrometry. Throughout the experiments RPMet was added to a diet to supply 1.5 g DL-methionine per goat per day. Irrespective of the major N sources (i.e., protein or urea) in the diet, both N deposition and whole-body protein synthesis were increased (p<0.05), and urinary N excretion was decreased (p<0.05) by supplementing with RPMet, but not by supplementing with methionine. It was concluded, therefore, that under the present experimental conditions, the RPMet supplement was efficiently bypassed to result in enhanced body protein synthesis of the goat.

• Asian-Australasian Journal of Animal Sciences
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• v.5 no.1
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• pp.13-18
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• 1992

Three cattle, a sheep and a goat were slaughtered to determine the distribution of digesta particles and mean size of digesta particles. Aliquot samples of digesta in the diverse sites of the digestive tracts were fractionated by a wet sieving technique. Fractionated particles were analyzed by the magnetic grid analyzer system constructed by authors. Results showed that the proportion of particles in digesta was similar among the omasum, abomasums cecum, colon and rectum, but that for the reticulo-ruminal digesta was different from the others. The pattern of the mass base frequency distribution of particles was also similar in the post-ruminal digesta. Average Heywood's diameter (the diameter equivalent to that of a circle with equal area to a projected area of a given particle) was about 1.2 mm in the reticulo-ruminal digesta and decreased to 0.65 mm for cattle or to about 0.35 mm for sheep and goat in the omasal digesta. Average Heywood's diameter was about the same in the post-ruminal digesta. It is concluded that mean particle size and particle distribution in digesta of the rectum or feces reflect those in digesta of the omasum.

• Asian-Australasian Journal of Animal Sciences
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• v.17 no.3
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• pp.423-427
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• 2004

Seventy-six animals including cattle, sheep, horses, 6 species of zoo animals were employed for collection of fresh feces in order to detect verotoxigenic Esherichia coli (VTEC) by safe, quick and sensitive PCR-based molecular methods. Bacterial cell disruption with bead-beating followed by bacterial DNA purification with hydroxyapatide chromatography and gel filtration allowed DNA preparation from animal feces with high recovery and purity. A mountain goat was firstly shown by PCR and sequencing to shed verotoxin 2 gene (vt2) that was used to generate vt2 probe and second primer set for nested PCR to attempt more sensitive detection. Most sensitive nested PCR revealed that 45% of tested cattle and 47% of tested zoo animals were VTEC-positive, while least sensitive normal PCR detected VTEC from none of these animals except a mountain goat. Moderately sensitive detection by PCR in combination with hybridization suggested that the VTEC density varied between the VTEC-positive cattle.

• Korean Journal of Veterinary Research
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• v.23 no.2
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• pp.199-203
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• 1983

The anthelmintic efficiency of nitroxynil(Trodax) at a dose rate of 10mg/kg was tested in naturally infected Korean native goat (Black goat) against Fasciola hepatica, Eurythrema pancreaticum, and Paramphistomum sp. The drug was administered with injection subcutaneouslly and the efficiency was measured by faecal examination microscopically. The results obtained were summarized as follows: 1. The anthelmintic efficiency of nitroxynil against Fasciola hepatica was shown 33.3% on day 7, 88.9% on day 14 and 94.4% on day 28 after the administration of the drug, respectively. The reduction rates of egg per gram of faeces (E. P. G.) against Fasciola hepatica in faecal examination were shown 86.8% on day 7, 97.7% on day 14, and 99.7% on day 28 postmedication. 2. The anthelmintic efficiency of nitroxynil against Paramphistomum sp. was shown 0% on day 7, 10.5% on day 14, and 36.8% on day 28 after the administration of drug. The reduction rates of E. P. G. against the parasite were shown 13.2% on day 14, and 39.4% on day 28 postmedication. 3. The anthelmintic efficiency of nitroxynil against Eurythrema pancreaticum was shown 0% on day 7, 16.6% on day 14, and 25% on day 28 after the administration of the drug.

• Korean Journal of Veterinary Research
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• v.39 no.1
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• pp.12-19
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• 1999

The regional distributions and relative frequencies of the gastrin, secretin and pancreatic polypeptide(PP)-immunoreactive cells in the gastrointestinal tract of the fetus(180 days of gestation) of Korean native goat were studied with immunohistochemical(ABC) methods. Gastrin-immunoreactive cells were detected in fundus, pylorus and duodenum and these cells were most predominant in pylorus. Secretin-immunoreactive cells were observed in pylorus, duodenum and ileum. PP-immunoreactive cells were restricted to fundus. These immunoreactive cells were situated in surface epithelium and mucosal gland regions. The regional distribution and relative frequency of PP-immunoreactive cells was somewhat different to the adult Korean native goat. Immunoreactive cells in the surface epithelial regions were open typed cells which were spindle shaped cells but closed typed cells which were round or/to spherical shaped cells were observed in the mucosal gland regions.