• 한국초지조사료학회지
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• 제35권1호
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• pp.1-5
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• 2015

본 연구는 흑염소 사양체계 확립에 대한 기초자료를 얻고자 방목과 사사형태의 사육이 흑염소의 번식능력과 자축의 발육성적에 미치는 영향을 조사하였다. 공시축은 흑염소 36두를 방목구와 사사구로 나누어 처리구당 18두씩 공시하여 2011년 4월부터 11월까지 8개월간 수행하였다. 단태의 비율은 방목구가 31.5%, 사사구가 37.0%로 통계적인 차이는 나타나지 않았다. 산자수는 방목구와 사사구가 각각 1.76과 1.69두로 사육형태에 따른 차이가 나타나지 않았으며, 이유 시의 두수는 방목구가 사사구 보다 높은 경향으로 나타났다(p=0.11). 사육형태에 따른 생시체중은 방목구가 2.3 kg, 사사구가 2.29 kg 로 나타나 차이가 나타나지 않았으나, 생후 90일 령 이유 시 방목구가 9.97 kg 로 사사구의 9.45 kg 보다 높은 경향으로 나타났으며(p=0.09), 포유기간 일당증체량에서도 방목구가 사사구 보다 높은 경향으로 나타났다(p=0.13). 이상의 결과를 종합해 보면, 흑염소를 방목과 사사형태로 사육하였을 때, 분만형태, 산자수 및 생시체중에는 차이가 없었으나, 이유두수 및 자축의 일당증체량에서는 방목사육 형태가 우수한 경향으로 나타나, 방목이 흑염소의 생리적 욕구를 충족시켜 건강한 흑염소 생산에 기여 할 것으로 판단된다.

• 한국가축번식학회지
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• 제16권2호
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• pp.109-116
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• 1992

The present study was carried out to establish a practical regimen for artificial parturition induction using prostaglandin F2$\alpha$(PGF2$\alpha$) and estradiol-benezoate in Korean native goats. The effect of parturition induction and the time intervals to induced parturition after injection were investigated. The birth weight and body weight of kids at 15 days of age were measured. A total of 24 pluriparous goats were offered for this experiment. The animals were divided into 4 goats per treatment by the injection time(142, 145 or 148 day of pregnancy) and dosage(5.0$\times$10 or 7.5$\times$7.5mg). The results obtained were summarized as follows : A total of 24 pregnant goats were intramusculary treated with 5.0$\times$10 or 7.5$\times$7.5mg of PGF2$\alpha$ and estradiol-benzoate for parturition induction of Day 142, 145 or 148 of gestation. Parturition was induced in all of the goats(100%) treated. The kids produced from induced parturition were all healthy. The time intervals to induced parturition after PGF2$\alpha$ and estradiol-benezoate injection of 5.0$\times$10 or 7.5$\times$7.5mg to pregnant goats on Day 148(23.22$\pm$0.51~23.40$\pm$1.26hrs) were significantly(P<.01) shorter than those of the 142 days of the gestation(26.34$\pm$2.22~28.39$\pm$3.02hrs). No significant difference was found in the time intervals between the doses(5.0$\times$10 or 7.5$\times$7.5mg) treated for parturition induction. The birth weight of kids from induced parturition was no significant difference between on Day 148 and on Day 142 of gestation. However, the birth weight of kids from parturition induced on Day 148 was found significantly(P<.01) heavier than that of the 142 days of gestation. The body weight of kids at 15 days old was also significantly(P<.01) lighter in the parturition induced on day 142 than those on Day 142. The birth weight and body weight of kids at 15 days old were not affected by 5.0$\times$10 or 7.5$\times$7.5mg injection of PGF2$\alpha$ and estradiol-benzoate for inducing parturition. From the above results, it was concluded that the parturition induction by PGF2$\alpha$ and estradiol-benezoate injection of 5.0$\times$10 or 7.5$\times$7.5mg on Day 142 of gestation, which was correspondent to 8 days before expected spontaneous parturition, was available without any significant troubles.

• Asian-Australasian Journal of Animal Sciences
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• 제27권4호
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• pp.503-510
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• 2014

The study was conducted to determine the effect of feeding diets containing Andrographis paniculata leaves (APL), whole Andrographis paniculata plant (APWP) and a control without Andrographis paniculata (AP0), on growth performance, carcass characteristics and meat yield of 24 intact Boer bucks. The results obtained indicated that inclusion of Andrographis paniculata significantly improved feed intake, weight gain, feed efficiency and live weight. The ratios of carcass to fat, lean to bone, lean to fat, and composition of meat were also improved. In addition, there were significant differences (p<0.05) between the dietary treatments in dressing percentage and chilling loss. Goats fed on AP0 (control) had significantly higher proportions of fat and bone, as well as thicker back fat than the supplemented animals (APL and APWP). Higher gut fill in animals fed Andrographis paniculata suggested slow rate of digestion, which could have improved utilization and absorption of nutrients by the animals. Goats fed Andrographis paniculata also produced higher meat yield and relatively lower fat contents (p<0.05).

• Asian-Australasian Journal of Animal Sciences
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• 제20권11호
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• pp.1689-1693
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• 2007

The objective of this study was to develop a simplified, efficient, and accurate protocol for sexing goat embryos. Based on the amelogenin gene located on the conservation region of X- and Y- chromosomes, a pair of primers was utilized and the system of PCR was established to amplify a 262 bp fragment from the X- chromosome in female goats, and a 262 bp fragment from X- chromosome and 202 bp fragment from the Y- chromosome in male goats, respectively. The accuracy and specificity of the primers were assessed using DNA template extracted from goat whole blood sample of known sex. 100% (10/10) concordance was obtained by using the PCR assay. Fifty-one biopsied embryos were transferred into 25 recipient goats on the same day that the embryos were collected and sex of the kid was confirmed after parturition. Eighteen kids of predicted sex were born. The biopsied samples from 51 goat embryos were amplified with 100% efficiency and 94.7% accuracy. In conclusion, our results indicated that PCR sexing protocols based on the amelogenin gene is highly reliable and suitable for sex determination of goats.

• Asian-Australasian Journal of Animal Sciences
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• 제30권6호
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• pp.811-818
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• 2017

Objective: This experiment was conducted to investigate the effects of fungal treated oil palm fronds (FTOPF) on performance, carcass traits, meat quality, and muscle chemical composition. Methods: Eighteen growing crossbred male goats (Thai Native${\times}$Anglo Nubian) with $18.7{\pm}2.0kg$ of initial body weight (BW) were stratified and blocked by BW in a randomized complete block design. Three diets containing 30% of oil palm fronds (OPF) either untreated (UOPF) or treated with Lentinussajor-caju (FTOPF) with or without urea (FTOPFU) were used as roughage sources in total mixed rations (TMRs). The diets were offered ad libitum and weight gain was determined. At the end of the experimental period, the harvest data and carcass characteristics of the goats were recorded, and muscular longissimus dorsi composition was determined. Results: No significant effect of fungal treated (FT) inclusion was observed in any of the feed intake, growth performance, and carcass characteristics. Likewise, no apparent effects on carcass composition and muscle chemical composition were detected in this study, except for hind leg and chump were affected (p<0.05) by FT inclusion. Conclusion: In conclusion, feeding of fungal (Lentinussajor-caju) treated oil palm frond in TMR diet did not affect performance and carcass characteristics in finishing goats.

• 한국초지조사료학회지
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• 제15권4호
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• pp.291-296
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• 1995

This study was conducted to determine the influence of alfalfa supplementation on intake, digestibility nitrogen and energy utilization in Korean native goats fed oak browse. This experiment was conducted by total collection method in laboratory, 1994. Diets included 100% oak bmwse(control), 75% oak browse+ 25% alfalfa and 50% oak browse + 50% alfalfa. Alfalfa supplemented diets were slightly higher CP(PO.O5). lignin (P<0.05) and tannin(P<0.05) contents than those control diets. Increasing levels of alfalfa supplementation, dry matter intake slightly increased, but no differences were observed in all diets. Digestibility for dry matter and cellular constituents showed higher for alfalfa supplemented diets than control diets(P<0.05), but NDF and ADF digestibility were similar for all diets. Alfalfa supplemented diets furnished higher dietary N, apparently digested N and retained N than did the control diets(P<0.05). Consumed energy slightly increased with increasing levels of alfalfa supplementation(P>0.05). DE was high(P<0.05) in alfalfa supplemented diets. but ME was similar for all diets. As above results, oak browse diets alone did not supply N and energy in excess of NRC recommended allowance for goats. Hence, goats fed oak browse with supplementation of protein sources such as alfalfa will be need to provides adequate nutrients.

• Asian-Australasian Journal of Animal Sciences
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• 제15권3호
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• pp.366-370
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• 2002

The objective of this study was to examine whether feeding induced hypovolemia (decrease in plasma volume) acts on the regulation of feed intake in goats fed on dry forage. In order to prevent feeding induced hypovolemia, a 2 h intravenous infusion (16-18 ml/min) of isotonic mannitol solution was begun 1 h prior to feeding and continued until 1 h after the start of the 2 h feeding period. The intravenous infusion of isotonic mannitol solution (MI) decreased plasma osmolality by 1.0%, plasma total protein concentration by 4.2% and hematocrit by 5.9%, respectively. In comparison with no infusion (NI), MI significantly decreased thirst level by approximately 13%. At the completion of the 2 h feeding period, cumulative feed intake had been increased by 43% by MI. In conclusion, feeding induced hypovolemia in goats fed on dry forage increased thirst level more than the increase in plasma osmolality did. The results demonstrate that feeding induced hypovolemia is one of the factors controlling feed intake in goats fed on dry forage.

• Asian-Australasian Journal of Animal Sciences
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• 제12권3호
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• pp.354-357
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• 1999

Hypothyroidism was induced in three age groups (8 months, 1 year and 2 years) of Black Bengal goats by administering thiourea subcutaneously for 30 days. From fourth day onwards the animals were observed to be in hypothyroid state. For 8 months age group, a control group of similar age was taken. For the 1 year and 2 years age groups there was no control group but the values obtained on the pre-treatment day were considered as control values. For confirming the establishment of hypothyroidism, peripheral plasma triiodothyronine $(T_3)$ and thyroxine $(T_4)$ were estimated in all the animals before and during the treatment period by radioimunoassay. In the thiourea treated 8 months age group the $T_3$ and $T_4$ levels were significantly (p<0.001) lower than those in the control group during the treatment period. In all the thiourea treated groups the $T_3$ and $T_4$ levels observed during the treatment period were significantly (p<0.01) lower than the pre-treatment levels. A nonsignificant loss in the body weight was observed in all the thiourea treated groups whereas there was a significant growth in the control group of animals. The study indicates that hypothyroidism has a negative effect on growth in goats.

• 대한수의학회지
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• 제17권2호
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• pp.41-49
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• 1977

The present study was underve the histochemical nature of various follicles and interstitial tissues in the ovaries of Korean native goats and cattle as well as the histochemical changes of those in the ovaries of Korean native goats treated with dexamethasone. Much more lipid granules appeared in the granulosa and theca cells of atretic follicles compared with normal follicles in these ruminant ovaries. In the ovaries of Korean native goats the interstitial tissue derived from the theca interna of atretic follicles appeared the form of patches of cells and the interstitial tissue derived from stromal cells appeared the form of diffuse, obscure bounds. In the ovaries of Korean native cattle the interstitial tissue derived from theca interna of atretic follicles showed sparsely scattered form of pathes of cells. The histochemical components were described on the basis of lipids in the granulosa and theca cells of normal follicles, atretic follicles and interstitial tissue. In the ovaries of Korean natve goats treated with dexamethasone, the granulosa and theca cells of atretic foillicle contained plenty lipid granules that were increased in size and number, however, lipid granules were markedly decreased in the interstitial tissue.

• Parasites, Hosts and Diseases
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• 제49권2호
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• pp.133-138
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• 2011

This study was undertaken to investigate the hematological and biochemical changes in experimentally infected goats with Besnoitia caprae from the time of infection till 360 days post-infection (PI). Six male goats were inoculated subcutaneously with $13{\times}10^7$ bradyzoites of B. caprae, and blood samples were collected from the jugular vein. The total erythrocyte and total leukocyte counts, hematocrit value, and differential leukocyte counts were determined. Serum biochemical analysis, including the total protein, albumin, total globulin, cholesterol, triglyceride, chloride, testosterone, calcium ($Ca^{2+}$), inorganic phosphorus, sodium ($Na^+$), potassium ($K^+$), iron ($Fe^{2+}$), glucose, serum amyloid A (SAA), haptoglobin (Hp), fibrinogen, ceruloplasmin, aspartate aminotransferase, alanine aminotransferase, creatine kinase, lactate dehydrogenase, and alkaline phosphatase, was undertaken. Skin biopsy from the limbs were collected at weekly intervals and histologically examined for Besnoitia cysts. Cysts were present in the skin biopsies of the leg of the infected goats from day 28 PI. There were variations in hematological analyses, but no significant difference was seen. From day 30 to 360 PI, results showed that SAA, Hp, fibrinogen, and ceruloplasmin concentrations increased, whereas testosterone concentrations decreased. Infected goats exhibited decrease of albumin and increase of serum total protein and globulin concentrations. By contrast, there were no significant differences in the remained analyses concentrations.