• 한국초지조사료학회지
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• 제37권4호
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• pp.345-349
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• 2017

본 연구는 엘크 사슴의 사육방식에 따른 사료섭취량, 체중 변화 및 녹용생산성에 미치는 영향을 확인하기 위하여 실시하였다. 엘크 사슴 12두를 공시하여 사사사육과 방목사육 형태로 사육하였으며, 처리구 간에 섭취량은 유사하게 나타났다. 일당증체량과 녹용생산성의 경우 방목사육 형태가 높게 나타났는데, 일당증체량은 방목사육 시 약 39% 높은 경향을 보였는데 이는 발육 개선효과가 있을 것으로 생각된다. 녹용 생산성 역시 방목사육 시에 약 19% 높은 경향을 보였다. 그러나 녹용 생산성의 경우 개체 간 편차가 심하여 통계적 유의성은 인정되지 않았다. 본 시험에서 방목사육 시에 일당증체량과 녹용 생산성이 높게 나타난 것은 방목에 따른 조사료원의 영양적 성분이 높기 때문으로 생각된다. 이러한 결과는 사슴 방목의 효과에 대한 기초자료로서 충분이 활용될 수 있을 것이며, 앞으로 계절과 방목지의 초종에 따른 녹용의 생산성과 안정성에 대한 추가적인 연구가 수행되어야 할 것으로 생각된다.

• 한국축산시설환경학회지
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• 제20권4호
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• pp.167-172
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• 2014

This study was conducted to evaluate the housing design on the feeding behaviors of group housed pregnant sows. A total of 65 sows (Landrace ${\times}$ Yorkshire) were employed into 2 experimental sow housing with different housing design. Lying area of one of sow housing was designed with concrete fence to give the shelter for weak sows. The other was floor type without any obstacles. Group housed sows were fed using electronic sow feeder (ESF) during gestation. Daily feeding pattern of sows was automatically recorded in ESF feeder program. Most sows ate all feed during night. Daily visiting frequency to ESF of sows in pig pen with the shelter was significantly lowered than sows in floor type pen. This study showed that the housing design of group housed sow pen could fairly impact ESF utilization of sow.

• Asian-Australasian Journal of Animal Sciences
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• 제5권4호
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• pp.629-634
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• 1992

Seventeen Japanese Black steers were used to evaluate the influence of slaughter weight (550 kg, 600 kg or 650 kg), sire (two sires), concentrate feeding (barley or corn) and muscle (six muscles) on the following characteristics: pH value, cooking loss, shear value, moisture and crude fat contents. Crude fat contents were higher, and moisture content and shear values were lower in muscles from the large slaughter weight group 650 kg than those from other slaughter weight groups. Cooking loss, shear value, moisture and crude fat contents differed between sires. Corn feeding increased crude fat content in muscle compared to barley feeding. Muscles containing a large amount of intramuscular fat showed lower shear values and less cooking loss than those containing a small amount of intramuscular fat.

• Asian-Australasian Journal of Animal Sciences
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• 제2권3호
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• pp.273-274
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• 1989

• Journal of Animal Science and Technology
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• 제51권1호
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• pp.53-60
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• 2009

본 연구는 배합사료의 급여방법(군사, 개체별 배합 사료 자동급이) 및 출하월령(생후 26 및 28개월)이 거세한우의 발육, 사료섭취량 및 도체특성 변화에 미치는 영향을 조사하기 위해 수행되었다. 시험구는 생후 26개월령 출하 군사구(G26), 개체별 배합사료 자동급이구(I26), 생후 28개월령 출하 군사구(G28), 개체별 배합사료 자동급이구(I28)의 4처리로 하여 각 처리당 7~8두씩 총 31두를 완전 임의배치하였다. 비육후기 배합사료 급여수준은 군사구(G26 및 G28)는 자유채식, 개체별 배합사료 자동급이구는 개체별로 체중의 1.7%이었다. 비육전기 일당증체량은 군사구들(G26 및 G28)에 비해 개체별 배합사료 자동급이구들(I26 및 I28)에서 많았으나(p<0.05), 비육후기 일당증체량은 개체별 배합사료 자동급이구들에 비해 군사구들에서 유의적으로 높았다(p<0.05). 비육전기 배합사료 섭취량은 군사구들에 비해 개체별 배합사료 자동급이구들에서 많았지만, 비육후기에는 개체별 배합사료 자동급이 구들에 비해 군사구들에서 많은 경향이었다. 배합사료 급여방법 및 출하월령이 거세한우의 도체특성, 육량등급 및 육질등급에 미치는 영향은 적었다. 배최장근의 전단력 및 연도는 26개월 출하 시험구들에 비해 28개월 시험구들에서 높았다(p<0.05). 배최장근의 가열감량, 보수력, 풍미, 수분, 단백질 및 지방 함량에 대한 사료급여 방법 및 출하월령의 영향은 없었다. 따라서 비육후기 개체별 배합사료의 제한급여가 거세한우의 도체특성에 미치는 영향은 적지만, 출하체중 저하로 농가소득을 감소시킬 수 있으므로 거세한우를 대상으로 개체별 자동급이기를 이용시 개체특성(등지방두께, 근내지방도 등)을 고려한 개체별 배합사료 급여수준 설정이 필요한 것으로 판단된다.

• Asian-Australasian Journal of Animal Sciences
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• 제5권3호
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• pp.527-532
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• 1992

The present paper describes temporal changes of immunohistochemical localization and quantities of carbonic anhydrase isozyme II (CA-II) prochymosin (PC) and pepsinogen (PN) in goat's abomasal mucosae during long term milk feeding. The CA-II was not detected by day 14 after birth and then became positive on day 34 in the parietal cells, suggesting that the excretion of the hydrochloric acid (HCl) begins between days 14 and 34 under a feeding condition without solid materials. The quantity of the PC in the gastric chief cells detected by the ELISA showed rapid increase from the day of birth, making a peak on day 8 and then gradually decreased with age. The decrease in quantity of PC became started during the time period when HCl excretion had not started yet. The quantities of PN in the gastric chief cells were almost stable during the whole period examined. Expressions of these gastric enzymes did not seem to be regulated by the change of feeding condition.

• Asian-Australasian Journal of Animal Sciences
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• 제18권9호
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• pp.1262-1266
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• 2005

Twelve Korean native goats, spontaneously infected with mixed species of Eimeria were used to study the possible direct anticoccidial effect of feeding condensed tannin-containing plants on the production of Eimeria oocysts. The effects of feeding pine (Pinus densifora) needles, oak (Quercus acutissima) leaves and lucerne chaff on coccidia oocyst output were studied for a period of 10 days post-feeding. The results indicate that feeding fresh pine needles (40 g condensed tannins (CT) dry matter (DM)/day/goat) and oak leaves (40 g CT DM/day/goat) in combination with lucerne chaff had rapid anticoccidial activities in goats as demonstrated by a sharp decrease in oocyst production. Two days after feeding, the numbers of oocysts per gram of faeces (OPG) from the goats fed pine needles with lucerne chaff, and from goats fed oak leaves reduced by 40% and 44% compared to pre-feeding, respectively. On the sixth day after commencing feeding pine needles and oak leaves, the reduction was 81% and 72%, respectively. Ten days after feeding pine needles and oak leaves, the OPG was reduced by 93% and 85%, respectively compared to pre-feeding. Statistical analysis showed that feeding pine needles and oak leaves to goats naturally infected with coccidia significantly (p<0.001) reduced the numbers of oocysts compared to the control group fed lucerne chaff only. Four clinically important species of coccidia, Eimeria parva, Eimeria ninakohlyakimovae, Eimeria christenseni and Eimeria arloingi were identified in Korean native goats.

• Asian-Australasian Journal of Animal Sciences
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• 제2권3호
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• pp.361-363
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• 1989

• Asian-Australasian Journal of Animal Sciences
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• 제9권6호
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• pp.727-735
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• 1996

The effects of four factors-two dietary protein levels (12 and 16%), feeding methods(ad libitum and restricted), strains (A and B), and age of hens-on egg quality and laying performance were examined. Use of the 12% dietary protein level resulted in significantly lower (p < 0.05) hen-day egg production, higher feed intake to about 85% of the ad libitum intake decreased mean hen-day production. Significant feeding method-by-age interactions ($F{\times}A$) were obtained for all parameters. Restricted feeding had favorable effects on shell strength and Haugh unit values after 28 and 16 weeks of egg production, respectively. There was significant difference in shell strength between the two strain. Examination of the three-factor interaction among protein levels, feeding method and strain ($P{\times}F{\times}S$) disclosed that the favorable effect of the A strain on shell strength was significant only with the 16% protein-restricted fed group. The other treatment group did show a trend for greater shell strength of the A strain. Mean values for all the parameters examined changed significantly (p < 0.01) with the age of hens. Feed intake per dozen eggs tended to increase, with some fluctuation, as the hens aged. There was a linear decrease in Haugh unit scores and shell strength. The effect of restricted feeding on either shell strength or Haugh unit scores were favorable for the aged chickens.

• Asian-Australasian Journal of Animal Sciences
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• 제12권5호
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• pp.723-727
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• 1999

Two experiments were conducted to determine the effect of feeding levels on intake and nutrient utilization of oat (Avena sativa) hay (OH) by goats and potential feeding value of leftovers from high levels of offer in sheep. In experiment 1, the goats (15) were offered OH at three levels of feeding to give leftovers of about 20% (T-1), 35% (T-2) and 50% (T-3) of DM offered. A marked effect of refusal rate of OH on intake and digestibility of nutrients was evident. Allowing selective consumption at higher levels (T-2 and T-3), the intake of DCP and TDN from OH was found not only to meet the maintenance requirement but provided surplus nutrients for moderate production. In experiment 2, Sheep (3) were offered one of the three dietary treatments viz OH, refusals left uneaten by goats in T-2 and T-3 (OHR) and 3% urea treated oat hay refusals (UTR) in a $3{\times}3$ latin square design. Though the potential feeding value of leftovers (OHR and UTR) was lower than OH, the results confirm the possibility of their effective use. It was concluded that feeding above the conventional ad libitum level could be an alternative to improve the performance of ruminants fed feeds like oat hay. The potential impact of the strategy would, however, depend on the effective reutilization of leftovers for feeding other animals.