보고서 정보
주관연구기관 |
국립축산과학원 National Institute of Animal Science |
보고서유형 | 최종보고서 |
발행국가 | 대한민국 |
언어 |
한국어
|
발행년월 | 2016-02 |
과제시작연도 |
2015 |
주관부처 |
농촌진흥청 Rural Development Administration(RDA) |
등록번호 |
TRKO201600003368 |
과제고유번호 |
1395041479 |
사업명 |
축산시험연구 |
DB 구축일자 |
2016-06-25
|
DOI |
https://doi.org/10.23000/TRKO201600003368 |
초록
Ⅳ. 연구개발결과
○ 반려견을 위한 가정식 제조 모델 기술 개발
○ 축산원 내 실험 돈군 및 환경에 대한 PRRS 항체 및 항원 검사 결과 일부 개체에서 항체 양성을 확인하였으나 항원 음성으로 바이러스 순환 증거 불충분, 추적 조사
○ 산지 양계 사육 시 8주령에 ND, IB, IBD 백신 접종을 통한 항체가 유지
Abstract
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[PJ01096501]
The objective of this study was to determine the effects of food grade diet on serum chemistry and nutrient digestibility in healthy dogs. Twenty four dogs (age = 5.5 years; all females) were randomly assigned to one of three dietary treatments: 1) an commercial(C) diet, 2) 50:50
[PJ01096501]
The objective of this study was to determine the effects of food grade diet on serum chemistry and nutrient digestibility in healthy dogs. Twenty four dogs (age = 5.5 years; all females) were randomly assigned to one of three dietary treatments: 1) an commercial(C) diet, 2) 50:50 (commercial : experimental, T1) diet or 3) experimental(T2, food grade) diet. Dogs remained on experiment for 12 wk. A 5-d total fecal collection was performed to determine apparent digestibilities after 2 wk. Blood samples were collected at baseline and after 4, 8, 12 wk on study. After 2 wk, dogs fed the T2 diet had greater CP digestibilities (P<0.01), DM digestibilities (P=0.06) and lower (P<0.01) Fecal DM percentage than the dogs fed the C diet. Dogs fed the T2 diet had lower (P<0.01) alkaline phosphatase (ALP) concentrations than dogs fed the C diet. Food grade diet had the positive effects on digestibilities, fecal characteristics and serum chemistry.
[PJ01096502]
Porcine reproductive and respiratory syndrome (PRRS) has become one of the most economically important diseases for the swine industry worldwide. PRRS viruses replicate within host alveolar macrophages and some cells of the monocyte lineage, from where they may influence the host immune response. Additionally, PRRS virus can localize in various organ systems and produce persistent infection in the absence of viremia. PRRSV infection also effect on peripheral blood cell profile such as leukopenia. The aims of this study were to access the haematological parameters in transgenic pigs and to reveal the relation those results with PRRSV antibody positive condition. Seventeen recombinant human erythropoietin (EPO) transgenic pigs were used. Blood samples were drawn for a complete blood count (CBC) and biochemical analysis. CBC included white blood cell count (WBC), red blood cell count (RBC), haemoglobin concentration (Hb) and haematocrit (HCT). Biochemical profiles included phosphate(PHOS), calcium(CA), total protein(TP), albumin(ALB), GGT, total bilirubin(TBIL) and cholesterol(CHOL). The presence of antibodies against PRRSV was tested by commercialized ELISA Kit (IDEXX). No significant correlations were found between specific gene modification and PRRS antibody positive status. However, the high RBC, Hb and HCT value might be related with leukopenia of PRRSV persistent infection. Fourteen EPO pigs were PRRS antibody positive. Only four EPO pigs showed high RBC, Hb and HCT value, and among them three PRRSV antibody positive pigs all showed low WBC counts. Erythropoietin is a multifunctional cytokines with anti-apoptotic, anti-inflammatory, and organ protective effects. However, EPO could aggravate leukopenia in the PRRSV infection.
[PJ01096503]
The welfare of laying hens raised in standard commercial cages has been placed under intense scrutiny. The traditional housing of egg-type chickens in conventional cages, long preceived as the most efficient method of housing laying hens, is now widely considered to have a negative effect on their welfare (Appleby, 1993; Appleby et al., 1993; Craig and Swanson, 1994). The limited environmental complexity and confinement in conventional cages physically restrict hens and eliminate many of their natural behaviours such as nesting, roosting, and scratching (Nicol, 1987; Baxter, 1994; Tactacan et al., 2009).
The use of non-cage housing systems for laying hens increased after the 2012 EU ban on conventional cages was implemented. The soil association is concerned that consumers’ expectations free-range chickens are often not mached by the reality of their welfare standards. Research has shown that “a large majority of free-range birds are free-range in name only”. A literature review by Elm Farm Research Centre concluded that “many of the birds in free-range poultry production systems do not leave the house” (O’Brien, 2006). Studies have shown that the number of non-orgainc ‘free-range’ birds venturing outside at any one time was as low as 12 to 15% of the flock, although 42% of birds were seen ranging in smaller flocks of around 490 birds. Even the birds that do go outside often stay close to their houses since the lack of suitable shelter can discourage greater freedom of movement in the outdoor areas. Body weight gain and FCR were not influenced among vaccination treatments. Blood parameter and blood biochemisty were not influenced among vaccination treatments. In addition, Brest proximate analysis (DM, Crude ash, Crude fat, and Crude protein), breast meat quality (Share force, cooking loss, water holding capacity and meat color), breast meat in fatty acids were not influenced among vaccination treatments. No-vaccination virus antibodies treatment tended to decreased ND, IB, and IBD.
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