• 한국가금학회지
• /
• 제37권3호
• /
• pp.229-235
• /
• 2010

본 시험은 토종오리와 육용오리를 교배 조합하여 토종오리의 생산성과 도체 수율을 개선시키기 위해 수행되었다. 공시 동물은 청둥오리와 육용오리의 교배 조합으로 발생한 4계통의 오리들을 암수 각각 120수씩 선별하여 총 240수를 이용하였다. 교배 방법은 토종오리(female)${\times}$토종오리(male), 육용오리(female)${\times}$토종오리(male), 토종오리(female)${\times}$육용오리(male), 육용오리(female)${\times}$ 육용오리(male)4계통을 각각 A, B, C, D로 하고, 암수를 분리하여 계통과 성별에 따라 각각 30수씩 선별하였다. 시험 사료는 육용오리 사료를 0~3주령(CP 22.0%, ME 2,900 kcal/kg)과 3~8주령(CP 18.0%, ME 3,000 kcal/kg)으로 나누어 8주 동안 급여하였다. 체중은 8주령에 암컷에 비해 수컷이 높게 나타났으며(P<0.05), 3주령과 8주령 모두 B, C계통 체중이 A계통 보다 높고 D계통보다는 낮게 나타났다(P<0.05). 증체량은 3~8주령과 0~8주령 동안에는 암컷에 비해 수컷에서 높았으며(P<0.05), 3~8주령 동안의 계통 간 증체량은 D>C>B>A순서로 높았다(P<0.05). 사료 섭취량의 경우, 증체량과 마찬가지로 암수간의 비교에서 차이가 없었으나, A계통에 비해 B계통과 C계통이 높았고, D계통이 다른 계통들에 비해 가장 높았다(P<0.05). 사료 요구율은 3~8주령에 수컷이 높았으며(P<0.05). 계통간 사료 요구율은 3~8주령과 0~8주령에는 A계통과 B, C계통, B계통과 D계통 사이에 유의적인 차이가 있었다(P<0.05). 4계통의 생체중과 도체중에 따른 도체 수율은 4계통이 각각 70.1%, 70.8%, 73.1% 및 71.2%로 나타났다. 따라서, 토종오리와 육용오리의 교배 조합은 토종오리의 생산성을 개선시킬 수 있을 것으로 사료된다.

• 한국가금학회:학술대회논문집
• /
• 한국가금학회 2001년도 제18차 정기총회 및 학술발표 PROCEEDINGS
• /
• pp.80-82
• /
• 2001

죽초액을 사료내 0%, 1%, 2% 및 4%로 첨가하여 5주 동안 급여했을때 육성오리의 생산성 및 육질에 미치는 영향을 조사한 결과는 다음과 같다. 증체량과 일당증체량은 죽초액 1%구에서 비교적 증가하였으나 유의성은 인정되지 않았다. 사료섭취량은 죽초액을 첨가함에 따라 약 간 증가하는 경향이였다. 도체중은 1%구가 비교적 증가하는 경향이였다. 죽초액 2%와 4%구에서 육성오리 가슴육의 단백질함량의 유의적인(P<0.05) 증가와 지방의 유의적인(P<0.05) 감소를 나타냈다. 콜레스테롤 함량과 TBA는 죽초액을 첨가함으로써 유의적(P<0.05)으로 감소하였다. 지방산 조성은 죽초액 2%구에서 콜레스테롤의 전구물질이며 포화지방산의 가장 높은 비율을 차지하는 palmitic acid가 죽초액을 급여함으로써 감소하는 경향인 반면에, 맛과 풍미에 영향을 주며 불포화지방산의 가장 높은 비율을 차지하는 oleic acid는 죽초액을 급여함으로써 증가하는 경향이었다. 관능평가 결과 맛과 풍미 그리고 외관에 있어 죽초액 1%와 2%구에서 유의적(P<0.05)으로 높게 나타났다. 장내 살모넬라균과 대장균의 수가 죽초액의 첨가수준의 증가에 따라 감소하는 경향으로 항균작용 효과가 있음을 알 수 있었다.

• 한국가금학회:학술대회논문집
• /
• 한국가금학회 2001년도 제18차 정기총회 및 학술발표 PROCEEDINGS
• /
• pp.83-85
• /
• 2001

남은 음식물을 수분 ·탈취 ·건조하여 0%, 25%, 50% 및 75% 대체한 펠렛사료를 육성오리에 5주 동안 급여한 결과 시험종료 체중이 남은 음식물 25%와 50% 첨가에서 유의적인(p<0.05) 증가를 나타냈다. 일당증체량은 남은 음식물 25%가 다른 처리구보다 유의적(p<0.05)으로 증가함을 나타낸 반면에 75%은 유의적인(p<0.05) 감소함을 나타냈다. 사료섭취량은 남은 음식물을 첨가함에 따라 다소 증가하였으나 유의적인 차이는 없었다. 사료효율은 남은 음식물 25%가 가장 좋은 반면에 75%가 가장 나쁘게 나타났다. 도체중은 75%구가 유의적(P<0.05)으로 감소하였다. 수분함량은 남은 음식물 25%와 50%구는 대조구와 별다른 차이가 없었으나 75%구가 유의적(P<0.05)으로 높았다. 지방과 단백질함량은 남은 음식물의 대체수준의 증가에 따라 유의적(P<0.05)으로 감소함을 나타냈다. 육의 pH은 남은 음식물 대체수준의 증가에 따라 증가하는 경향이였으며, 75%구에서 유의적인 차이를 나타냈다. 육색의 명도와 적색도는 남은 음식물의 대체수준의 증가에 따라 감소하는 경향이였다. 콜레스테롤 함량은 남은 음식물 25%, 50% 및 70%구에 유의적(P<0.05)으로 감소하였다. 관능평가에서는 냄새와 외판이 남은 음식물 대체 급여에 의해 약간 떨어지는 경향이였으나 맛에 있어서는 다소 증가하는 경향을 나타냈다. 따라서 남은 음식물을 이용한 토리 펠렛사료에 있어 50% 까지 대체 이용 가능성을 시사해주고 있다.

• 한국가금학회지
• /
• 제29권4호
• /
• pp.293-300
• /
• 2002

This experiment was conducted to investigate the effect of the supplemental Bamboo vinegar on production and meat quality of broiler ducks for 35 days. One hundred broiler ducks were divided into 4 groups of 25 ducks. Dietary levels of bamboo vinegar 0%, 1%, 2% and 4% were added to experimental diets ot each of the groups. The wei핌t gain and feed intake of ducks f3d with supplemental bamboo vinegar significantly high compared to those of the control. The carcass rate of the ducks fed with supplemental Bamboo vinegar 1% and 2% were increased compared to that of control, but the ducks fed with 4% treatment was decreased in carcass rate. The lipid and cholesterol content of breast meat of the ducks f3d bamboo vinegar 2% and 4% were significantly decreased (P<0.05). The color values in redness and yellowness were increased by supplemental Bamboo vinegar. Palmitic acid of fatty acid composition in breast meat was decreased by supplemental bamboo vinegar groups, whereas linoleic acid was increased, this difference was especially observed in supplemental Bamboo vinegar 2% (P<0.05). The odor, appearance and taste of sensory evaluation were improved by supplemental bamboo vinegar, especially in supplemental bamboo vinegar 1% and 2% (P<0.05). The results of this study indicate that the supplemental bamboo vinegar 1% and 2% may improve the production and meat quality of broiler ducks.

• Asian-Australasian Journal of Animal Sciences
• /
• 제14권12호
• /
• pp.1728-1733
• /
• 2001

An experiment was conducted at the experimental duck farm of Cantho University in the Mekong Delta of Vietnam to evaluate the effects of offering pairwise feeds with different crude protein (CP) levels to Cherry Valley broiler ducks from 28-63 days of age on feed intake and performance. Five diets consisting of mixtures of soya bean meal, fish meal, maize meal and fine rice bran, were formulated to give isocaloric diets with 30, 24, 18, 16 and 12% CP. These were offered separately as pellets to growing ducklings in the following combinations: 30+18, 30+12, 24+16 and 18+12. A diet with 20% CP (CP20) was used as control. All the diets were offered ad libitum. Daily feed intakes (g dry matter, DM) were 161, 168, 150, 101 and 143 g for the 30+18, 30+12, 24+16, 18+12 and CP20 treatments, respectively. CP intakes were 29.6, 27.0, 24.8, 17.1 and 22.9% of total DM intake, and the ratio of methionine+cystine to lysine was 0.76, 0.75, 0.75, 0.76 and 0.75 for the 30+18, 30+12, 24+16, 18+12 and CP20 treatments, respectively. Live weights at 63 days of age were 2,937, 3,054, 2,898, 2,200, and 2,811 g (p<0.001), and daily live weight gains 57.8, 61.7, 57.0, 38.5 and 55.7 g (p<0.001) for the 30+18, 30+12, 24+16, 18+12 and CP20 treatments, respectively. The weights and yields of the carcass, breast and thigh muscles, and heart decreased in the order 30+18, 30+12, 24+16, CP20 and 18+12 (p<0.001). The present study suggests that growing broiler offered a combination of high and low protein feeds pairwise will eat excessive amounts of the high protein feed, thus resulting in protein intakes above requirements.

• 한국축산식품학회지
• /
• 제33권1호
• /
• pp.89-95
• /
• 2013

This research was conducted to compare the meat characteristics of Korean native duck and imported commercial duck. The Korean native ducks and imported commercial ducks (broiler duck: Grimaud) were raised under identical rearing and feeding conditions for 8 wk and 6 wk, respectively. At the end of the rearing period, ten ducks from each group were slaughtered, and breast and leg meat were obtained 24 h after slaughtering for analyses of meat characteristics. The results showed that the breast of Korean native ducks contained lower moisture and fat, and higher protein and water holding capacity (WHC) than those of imported commercial ducks (p<0.05). The breast of Korean native ducks also had higher CIE $a^*$ and lower CIE $L^*$ (p<0.05). After cooking, the breast meat of Korean native ducks had higher shear-force, sensory attributes of texture, taste and overall likeness (p<0.05). Also, the breast meat of Korean native ducks contained a higher percentage of palmitic acid ($C_{16:0}$) and arachidonic acid ($C_{20:4}$) (p<0.05) than those of imported commercial ducks. Furthermore, the leg meat of Korean native ducks contained higher percentages of total unsaturated fatty acid and lower percentages of total saturated fatty acid (p<0.05). It is concluded that the meat from Korean native ducks, especially breast meat, had better quality parameters and contained higher amounts of unsaturated fatty acids.

• 한국환경과학회지
• /
• 제31권3호
• /
• pp.275-279
• /
• 2022

This study was conducted to examine the performance of poultry production and ammonia emissions from poultry litter when the mealworm (Tenebrio molitor L.) powder was fed to broilers and ducks. In Experiment 1, a total of 180 1-day-old broilers (Arbor acres) were allocated to two treatments with three replicates in a completely randomized design. In Experiment 2, ducks were used in the same method as in Experiment 1. The dietary treatments were as follows: basal diets as control and basal diets with 1.5% Tenebrio molitor L. powder as T1. In Experiment 1, broiler production was not affected by the addition of mealworm powder (p>0.05). Ammonia from broiler litter was observed significantly different in the two treatments at 4 and 5 weeks (p<0.05); however, in other weeks ammonia measured did not show significance different (p>0.05). In Experiment 2, feeding of mealworm powder had no statistical significance on duck productivity (p>0.05). Ammonia emissions from duck litter were not statistically significant in the two treatments at 2 to 5 weeks (p>0.05); however, there was a difference at 6 weeks (p<0.05). Therefore, the addition of mealworm powder to broiler and duck diets did not only improved weight gain and feed efficiency, but also effectively reduced ammonia in poultry litter.

• 한국가금학회지
• /
• 제32권4호
• /
• pp.245-254
• /
• 2005

본 연구는 3주령의 육용오린 사료에 알칼리장석-일라이트를 0, 0+ 항생제, 0.5, 1.0 및 $1.5\%$ 첨가한 5처리구에 3반복으로 각각 12수씩 배치하여 43일간 급여하여 생산성 및 육질에 미치는 영향을 알아보고자 실행하였다. 육성오리의 일당 증체량은 알칼리장석-일라이트 1.0와 $1.5\%$ 첨가구에서 약간 증가하였다(p>0.05). 사료섭취 량은 알칼리장석-일라이트 첨가구에서 증가하는 경향이었다(p>0.05). 혈중 글루코스 농도는 알칼리장석-일라이트 $0.5\%$ 처리구에서 약간 감소한 반면에(p>0.05) 혈중 요소태 질소 함량은 알칼리장석-일라이트 $0.5\%$ 첨가구에서 유의적으로 증가하였다(p<0.05). 콜레스테롤 함량은 알칼리장석-일라이트 $0.5\%$ 첨가구에서 유의적으로 감소하였다(p<0.05). 도체중과 도체율은 알칼리장석-일라이트 첨가수준에 따라 증가하는 경향이었다(p>0.05). 알칼리 장석-일라이트 급여에 의한 육용오리 가슴육의 조지방 함량은 알칼리장석-일라이트 $1.5\%$ 첨가구에서는 유의적으로 감소하였다(p<0.05). 육색의 명도와 황색도는 알칼리장석-일라이트에서 높게 나타났으며(p>0.05), 콜레스테롤 함량은 알칼리장석-일라이트 첨가구에서 감소하였다(p>0.05). 지방산 패도는 알칼리장석-일라이트 첨가구에서 약간 감소하였다(p>0.05). 알칼리장석-일라이트 첨가에 의한 포화지방산 비율이 약간감소하는 경향인 반면에 불포화지방산 비율이 약간 증가하는 경향을 나타내었으나 유의적인 차이는 없었다(p>0.05). 알칼리장석-일라이트 첨가에 의한 육성오리 간의 중금속 함량은 납 축적량이 비교적 높게 나타났다(p>0.05). 관능 평가(appearance)에서 알칼리장석-일라이트 1.0와 $1.5\%$ 첨가구에서 외관의 유의적인 개선 효과를 나타내었다 (p<0.05). 이상의 결과를 종합해 볼 때 육성오리에 대한 알칼리장석-일라이트 급여는 증체량의 개선효과와 더불어 가슴육의 조지방 함량의 감소 그리고 관능평가에서 외관의 개선 효과가 있음을 알 수 있었다.

• 한국동물위생학회지
• /
• 제46권3호
• /
• pp.211-218
• /
• 2023

This study was carried out to investigate the prevalence and antimicrobial resistance of Salmonella serotypes in duck farms of Jeollanam-do Province, South Korea. A total of 1112 samples (breeder ducks, 286; broiler ducks, 826) were collected from 196 duck farms (breeder duck farms, 25; broiler duck farms, 171) between January 2018 and November 2019. The total prevalence of Salmonella serotypes was 45.4% (89/196) in the duck farms, with no significant difference between prevalence in breeder and broiler duck farms (48% and 45%, respectively; P>0.05). The most prevalent serotype among the 127 Salmonella isolates was Salmonella Typhimurium (20.5%) followed by Salmonella Albany (17.3%), Salmonella Hadar (15.7%), and Salmonella Enteritidis (11.8%). Maximum resistance was observed against penicillin (78.74%), followed by tetracycline (68.50%), and kanamycin (65.35%). Of the 127 isolates, 117 (92.13%) were resistant to ≥3 antimicrobials and 2 to all 18 antimicrobials. Our results demonstrate the presence of Salmonella strains and their resistance to multiple antimicrobials, thus indicating a public health concern in South Korea. The emergence of Salmonella stains that are resistant to multiple drugs highlight the need for careful use of antimicrobials in duck farms.

• Asian-Australasian Journal of Animal Sciences
• /
• 제32권11호
• /
• pp.1753-1762
• /
• 2019

Objective: The study was aimed to compare carcass traits, physicochemical and textural properties of meat in two different genotypes of Pekin ducks with regard to sex effect. Methods: The study involved 120 Pekin ducks: 30 males and 30 females of strain P33 (Polish native Pekin ducks) and 30 males and 30 females of Star 53 HY (commercial hybrid Pekin ducks). At 49 d of age, 48 birds (12 males and 12 females of each genotype) were selected for dissection. After the dissection, meat samples were collected to determine meat quality traits. Results: The studied Pekin ducks of different genotype showed significant differences in body weight, carcass weight, dressing percentage, as well as percentages of breast muscles, skin with subcutaneous fat, abdominal fat, neck, and remainders of eviscerated carcass with neck. Duck genotype influenced the content of crude protein, crude fat, Na, K, P, Zn, $pH_{24}$, electric conductivity ($EC_{24}$), cooking loss, $L^{\star}$, $a^{\star}$, most textural traits of breast muscle, and also Na, Mg and Fe content, $EC_{24}$, drip loss, cooking loss and $L^{\star}$, $a^{\star}$, and $b^{\star}$ colour coordinates of leg muscles. Regardless of genetic origin, males exhibited higher BW, carcass weight and carcass neck percentage, as well as lower redness, hardness, chewiness and gumminess of breast muscle compared to females. The genotype${\times}$sex interaction was significant for the crude fat content and cooking loss of breast muscle, and for the yellowness of leg muscle. Conclusion: Star 53 HY ducks are more suited for broiler production due to their higher body weight and dressing percentage. Their breast and leg meat are characterized by more beneficial chemical composition but has poorer sensory and textural properties compared to the meat of P33 ducks.