• 제목/요약/키워드: broiler chicken

검색결과 463건 처리시간 0.024초

Associations of Single Nucleotide Polymorphisms in BMPR-IB Gene with Egg Production in a Synthetic Broiler Line

  • Zhang, N.B.;Tang, H.;Kang, L.;Ma, Y.H.;Cao, D.G.;Lu, Y.;Hou, M.;Jiang, Y.L.
    • Asian-Australasian Journal of Animal Sciences
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    • 제21권5호
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    • pp.628-632
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    • 2008
  • Egg production traits are economically important both for egg-laying and broiler lines of chicken. In sheep, the Q249R mutation in BMPR-IB is associated with ovulation rate. The present study cloned a partial chicken BMPR-IB fragment which contained the corresponding ovine Q249R mutation, including partial exon 6 and exon 7 and full-length intron 6. Five nucleotide changes were identified by alignment of the fragment amplified from Jining Bairi and Zang chickens. Among these nucleotide substitutions, the C/T transition at the base position of 35 and the A/G transition at the base position of 287 were found to be highly polymorphic, and named as SNPs C35T and A287G, respectively. For the SNP C35T, 331 hens of a synthetic broiler line were genotyped by a PCR-SSCP approach and allele C was found to be dominant. For the SNP A287G, 604 birds from the synthetic broiler line, a commercial egg-laying line, as well as three Chinese indigenous chicken breeds were genotyped by a PCR-RFLP technique. The associations of these two SNPs with egg production traits in the broiler line were analyzed. The results indicated that both the C35T and the A287G SNPs were not associated with egg production at 33wks and from 33wks to 42 wks (p>0.1), whereas the SNP A287G was associated with egg production from 47 to 56 wks (p<0.05). The dominance genetic effects on this latter trait and on egg production from 33 to 42 wks were significant (p<0.05).

닭고기 품질에 대한 판매장 관리자의 의식 조사 (Survey of Marketing Manager′s Perception for Broiler Quality)

  • 채현석;조수현;박범영;유영모;김진형;안종남;이종문;윤상기;최양일
    • 한국가금학회지
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    • 제28권3호
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    • pp.283-288
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    • 2001
  • 소비자들이 닭고기 구입 시 고려사항은 백화점의 경우 1순위가 브랜드이었으나 슈퍼마켓에서는 가격을 우선시하였다. 통닭의 판매형태는 백화점은 냉장유통이 100%인 반면 슈퍼마켓에서는 75%수준에 머물렀다. 닭고기 품질에 대한불만사항은 백화점의 경우 드립 발생을 우선으로 꼽은 반면 슈퍼마켓에서는 신선도에 대한 불만이 높았다. 현재 닭고기의 판매 형태는 백화점, 식품체인점, 슈퍼마켓에서는 89% 이상이 닭고기의 중량별 무게 (호수)를 고려한 마리 당 판매를 실시하였다. 닭고기 구입 후 판매기간은 백화점이 3일, 슈퍼마켓은 4일 내에 전부 판매하는 것으로 조사되었다. 품질을 고려한 등급별 판매에 대한 만족 여부는 백화점의 경우는 대부분이 만족하는 경향이었으나 슈퍼마켓에서는 불만족하다고 응답한 곳이 50%를 나타냈다. 닭고기의 품질 등급을 제정한다면 몇 단계가 바람직한가에 대한 설문 결과는 백화점의 경우 주로 2단계로 구분한 것을 선호하였다. 부분육의 판매 비율은 백화점과 식품 전문점의 경우 북채와 봉이 가장 많이 판매되는 것으로 나타났다. 결론적으로 판매장 및 소비자가 원하는 닭고기는 품질적인 면에서 우수한 닭고기를 선호하고 닭고기에 대한 품질등급제를 실시할 경우 대부분이 만족하는 경향을 보여 소비자의 신뢰를 얻기 위해서는 보다 고품질의 닭고기의 생산과 위생적인 면에서도 안전한 닭고기의 처리가 무엇보다도 중요하다고 하겠다.

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CHICKEN MYCOPLASMOSIS IN BANGLADESH

  • Biswas, H.R.;Khatun, H.;Mustafa, A.H.M.;Miah, A.H.;Hoque, M.M.;Rahman, M.L.
    • Asian-Australasian Journal of Animal Sciences
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    • 제6권2호
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    • pp.249-251
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    • 1993
  • A total of 4,800 chicken sera from Broiler, Layer, and Local chicken were tested to detect the presence of Mycoplasma gallisepticum (Mg) antibody by Rapid Serum Plate and Tube Agglutination Test. Positive cases recorded in this study were 945 (27%) in Broiler, and 436 (36.7%) in layer chicken sera and no. M. gallisepticum antibody could be seen in the local chicken sera. It is evident from the present findings that Mycoplasma gallisepticum infection has been prevailing in this country in improve breeds of chickens.

육계에서 발생한 흡수불량증후군 증례 (A case report of runting-stunting syndrome in a broiler farm)

  • 추금숙;정우리;문보미
    • 한국동물위생학회지
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    • 제47권2호
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    • pp.107-113
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    • 2024
  • A broiler farm in Jeonbuk province experienced high mortality due to decreased feed intake and poor growth, and pathological evaluation of 11- and 17-day-old broilers was performed, which led to the diagnosis of runting-stunting syndrome. From the start of the rearing period to shipment, 18.4% of the chickens in the three barns experiencing continuous culling and mortality were affected, compared to 7.7% in the other five barns. Gross findings on the 11-day-old broiler chicken revealed proventricular dilatation and hemorrhage, intestinal hemorrhage, urate deposition in the pericardium and renal tubule, nephropathy, and mild hepatic capsulitis. Similar proventricular dilatation and hemorrhage were observed in the 17-day-old broiler chickens. In addition, hepatitis and pericarditis were observed with the progression of secondary bacterial infection, and pathogenic Escherichia coli was isolated from these lesions. As a result of PCR, Newcastle disease virus, fowl adenovirus, chicken anemia virus and Marek's disease virus were not detected in the all tissue samples. In contrast, infectious bronchitis virus was detected in the proventriculus, kidney and cecal tonsil. chicken astrovirus was detected in the intestine, cecal tonsil and bursa of Fabricius, and chicken parvovirus was detected in proventriculus, intestine, cecal tonsil and bursa of Fabricius. By sharing the diagnostic process of a case of malabsorption syndrome through this case report, we hope that it can be widely utilized in the diagnostic process of livestock disease pathognomonic institutions.

닭고기의 품질 및 맛에 관한 계피 급여효과 (Effect of Dietary Cinnamon Powder on Savor and Quality of Chicken Meat in Broiler Chickens)

  • 박병성
    • 한국식품영양과학회지
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    • 제37권5호
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    • pp.618-624
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    • 2008
  • 브로일러에서 계피의 첨가급여가 브로일러의 성장능력, 혈액지질, 도체특성, 닭고기의 품질특성 및 계피맛, 향과 관련한 닭고기의 맛에 미치는 영향을 연구하였다. 병아리는 CNP를 함유하지 않은 대조구, CNP 2.0%, CNP 3.0%, CNP 4.0% 및 CNP 5.0% 첨가구로 구분하였다. 브로일러의 사료섭취량, 사료효율은 대조구와 비교할 때 처리구간 차이가 없었으나 체중은 CNP 3% 이상으로 첨가수준이 증가함에 따라서 유의적인 개선을 나타냈다(p<0.05). 혈액의 중성지방, HDL-C는 대조구에 비해서 CNP 첨가수준이 높아질수록 증가하는 경향을 나타냈으나, 총 콜레스테롤, LDL-C는 뚜렷하게 감소하였으며 각 처리구간 통계적 유의차가 있었다(p<0.05). 도체율은 CNP 첨가구가 대조구에 비해서 높았고, 닭 다리살은 CNP 3.0% 이상에서 증가하였으며, 닭 가슴살은 CNP 2.0%와 4.0% 첨가구가 높은 경향이었다(p<0.05). 닭 가슴살의 pH는 대조구와 비교하여 유의차가 없었으나, 보수력은 CNP 4% 이상 첨가수준이 높아질수록 증가하였고, TBARS는 CNP 3% 이상 첨가수준이 높아질수록 유의적으로 낮아졌다(p<0.05). 닭 가슴살의 육색은 CNP 첨가수준이 3% 이상 증가할수록 대조구에 비해서 더욱 밝은 색을 나타냈다(p<0.05). 닭 다리살 튀김과 삶은 닭 가슴살에서 계피와 관련한 맛, 향에 대한 관능평가 성적은 대조구와 비교할 때 CNP 첨가수준이 높아질수록 유의적으로 높게 나타났다(p<0.05). 본 실험에서 나타난 중요한 점은 브로일러 사료에 계피를 첨가 급여해줌으로써 닭고기의 도체특성과 맛을 개선할 수 있다는 사실이었다.

한국꿩과 육계의 복부지방 세포 특성에 관한 연구 (Adipocyte Cellularity of Abdominal Fat Pad in the Farmed Korean Ring-necked Pheasants and Broiler Chicken)

  • 방극승;김대진
    • 한국가금학회지
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    • 제19권2호
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    • pp.57-64
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    • 1992
  • 한국법과 육계의 지방세포에 대한 세포학적 비교를 하였던 바 정의 지방세포의 직경은 평균 25~45$\mu$으로서 비교적 같은 체중의 육계의 40~55$\mu$에 비하여 월등히 적었으며 세표용적은 육계의 48~101pl에 비하여 불과 10~75pl로 지방 저장능력이 아주 낮은 것으로 확인되었으며 따라서 극히 소량의 복부 지방층은 지방세포의 작은 직경에 기인하는 것으로 사료된다.

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재래닭의 대한 육계사료 급여체계 설정 (Effect of Various Feeding Regimen on the Performance of Korean Native Chicken Consuming Broiler Diets)

  • 나재천;김학규;정행기;강보석;김웅배
    • 한국가금학회지
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    • 제25권2호
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    • pp.65-70
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    • 1998
  • A 16-wk feeding trial was conducted to investigate the proper feeding regimen on the performance of Korean Native Chicken(KNC) consuming broiler diets. Commercial KNC are normally fed 3 kinds of diets during their life span, i. e., starter(S, 0 to 3wk of age), grower(G, 4 to 7wk of age), and finisher(F, 8 to l6wk of age) diets. In this trial, four feeding regimen were employed:T1(S-G-F), T2(S-G-G), T3(S-S-F), and T4(S-F-F). Day-old 360 KNC were randomly allotted to 12 pens: three pens per treatment, and 30 birds per pen. At the end of the trial, the BW of T2 was significantly better than that of T3(P<0.05), and T1 and T4 were intermediate. No significant difference were found in feed intake, feed conversion ratio, and viability among treatments. It appears that, in terms of BW gain, the T2 is the recommendable feeding regimen for KNC consuming broiler diets.

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COMPARATIVE STUDY ON PATHOLOGY OF HEMIC SYSTEM OF THREE BROILER CHICKEN STRAINS SUFFERING FROM EXPERIMENTAL HYDROPERICARDIUM SYNDROME

  • Khan, S.A.;Zaidi, F.H.;Chaudhry, R.A.;Ashraf, S.K.;Mian, M.S.;Qureshi, I.R.
    • Asian-Australasian Journal of Animal Sciences
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    • 제8권4호
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    • pp.325-328
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    • 1995
  • The experiment was conducted to study the comparative pathology of hemic system among three different broiler chicken strains i.e. Hubbard (H), Lohmann (L) and Indian River (IR) suffering from experimentally induced Hydropericardium Syndrome (HPS). For this 50 chicks of each strain were inoculated with HPS inoculum at the age of 21 days and other 50 chicks of each broiler strain were kept as uninoculated control. After slaughtering each bird of both groups was subjected to pathological examination of heart, spleen and aorta and also for determining routine haematological parameters. The maximum values of Total Erythrocyte Count (TEC), heterophils and thrombocytes and the minimum values of Total Leukocyte Count (TLC) and Hemoglobin (Hb) content were found in H broiler strain. Percentage of monocytes, basophils and eosinophils also showed maximum decrease in H broiler chicken strain. Gross pathological lesions in the inoculated birds revealed that the heart showed ballooning due to distention of pericardial sac with pericardial fluid. Haemorrhages on the epicardium and flabbiness of the myocardium. Under the microscope, degenerative changes in myocardial tissue were seen. Lesions in the spleen included splenomegaly and haemorrhagic spots. Aorta showed flabbiness of the wall and disruption of endothelium. It is concluded that there is a marked difference in susceptibility of HPS among three different commercial broiler strains. The Hubbard broiler strain is more susceptible which is followed by the Indian River and Lohmann respectively.

브로일러에 대한 감마리놀렌산의 급원으로써 달맞이꽃종자유와 삼씨유;닭 껍질, 다리살 및 가슴살 지질의 지방산 조성에 미치는 영향 (Evening primrose oil and hemp seed oil as an ${\gamma}-linolenic$ acid source for broiler;Influence of fatty acid composition of chicken skin, thigh and breast muscle)

  • 박병성;강환구
    • 한국응용과학기술학회지
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    • 제24권2호
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    • pp.196-204
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    • 2007
  • The objective of this study was to determine the effect of dietary oils on the levels of the ${\gamma}-linolenic$ acid in chicken meat lipids. Three hundred ten five, 1-d old, male, Ross strain, broiler chicks were fed for 35 d to compare diets containing evening primrose oil(EPO) and hemp seed oil(HO) to a control diet. Fatty acid composition of lipid from chicken skin, thigh and breast muscle were determined at the end of the trial. The level of ${\gamma}-linolenic$ acid of lipids from chicken meat fed diets containing EPO or HO was significantly higher than that of the control group(p<0.05). The level of ${\gamma}-linolenic$ acid of lipids from chicken skin was highest in the group, which had been fed the EPO 0.85%, followed in order by EPO 0.7%, 0.5%, EPO mixed oil, HO and HO mixed oil. There was a significant difference in the level of ${\gamma}-linolenic$ acid of chicken skin between the control and treatment groups(p<0.05). The level of ${\gamma}-linolenic$ acid of lipids from chicken thigh muscle was also similar to skin, and significantly higher than that of the control group(p<0.05). The level of ${\gamma}-linolenic$ acid of lipids from chicken breast muscle was highest in the group, which had been fed the EPO 0.5%, followed in order by EPO 0.7%, 0.85%, HO 0.5% and HO mixed oil. There was a significant difference in the level of ${\gamma}-linolenic$ acid of chicken breast muscle between the control and treatment groups(p<0.05).

육계농장에서 외미거저리(Alphitobius diaperinus) 발생양상 보고 (Infestation Status of the Darkling Beetle (Alphitobius diaperinus) in Broiler Chicken Houses of Korea)

  • 능엔 남하이;양병근;이재선;윤종웅;홍기정
    • 한국응용곤충학회지
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    • 제58권3호
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    • pp.189-196
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    • 2019
  • 딱정벌레목(Coleoptera) 거저리과(Tenebrionidae)에 속하는 외미거저리(Alphitobius diaperinus (Panzer))는 저장곡물해충의 하나로 알려져 있지만, 대부분 이미 피해를 받은 곡물을 섭식하기 때문에 경제적으로 심각한 위협을 초래할 정도는 아니다. 그러나 이 외미거저리 해충은 많은 나라의 가금산업에서 매우 중요한 해충으로 간주되고 있다. 우리나라의 육계농장에서도 외미거저리가 발생하여 문제를 야기하고 있음이 확인되었고, 이 해충의 발생으로 야기되는 문제로는 육계농장의 보온효과 및 병아리의 전반적인 활력을 떨어뜨리고, 병원균을 전염시킴으로써 가금업자에게 상당한 경제적 손실을 가져다주고 있다. 한편, 육계농장에서 이 외미거저리 개체군을 한 가지 방법으로 완전히 제거하기가 쉽지 않기 때문에 적절한 방제방법을 개발하기 위한 노력이 절실하다.