[논문]양질 조사료 급여에 따른 한우 송아지의 IgY 처리효과

홍병천; 신종서; 박병기; 김병완; 성경일; 안준상

doi:10.5333/kgfs.2016.36.2.159

양질 조사료 급여에 따른 한우 송아지의 IgY 처리효과
Effects of IgY Supplementation on Hanwoo Calves Fed withHigh Quality Roughage 원문보기

한국초지조사료학회지 = Journal of the Korean Society of Grassland and Forage Science, v.36 no.2, 2016년, pp.159 - 166

홍병천 (강원대학교 동물자원과학부) , 신종서 (강원대학교 동물자원과학부) , 박병기 (농협사료) , 김병완 (강원대학교 동물자원과학부) , 성경일 (강원대학교 동물자원과학부) , 안준상 (강원대학교 동물자원과학부)

Abstract ▼ AI-Helper

This study was conducted to examine the effect of IgY supplementation on growth performance, blood metabolism, and disease occurrence in the weaned calves at 3 or 4 month of age. Average daily gain (ADG) and feed intakes were not affected by IgY supplementation, regardless of weaning months. White blood cell (WBC) count of the control group was higher in the final stage than in the initial stage (p<0.05), while that of the IgY supplemented group was lower in the final stage compared to the initial stage (p<0.05). regardless of treatments. Hematocrit (HCT) and red blood cell (RBC) counts were lower in the final stage than in the initial stage (p<0.05), but mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) counts were higher in the final stage than in the initial stage, regardless of treatments. In the control group, concentrations of albumin and globulin were higher in the final stage compared to the initial stage in the weaned calves at 3 month of age (p<0.05), and concentration of blood urea nitrogen (BUN) was increased in the IgY supplemented group. In the control group, concentrations of aspartate aminotransferase (AST) and gamma (${\gamma}$)-glutamyl transferase (GGT) were higher in the final stage compared to the initial stage (p<0.05). In contrast, concentrations of aspartate aminotransferase (AST) and gamma(${\gamma}$)-glutamyl transferase (GGT) were lower in the final stage compared to the initial stage for the IgY supplemented group. A diarrhea calf was only found in the control group. Manure score was higher in the control group compared to IgY supplemented group (p<0.05). Thus, these results indicates that IgY supplementation had positive effects on some blood metabolites, fecal condition score and diarrhea without negative effect on growth performance of the weaned Hanwoo calves.

주제어

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문제 정의

In this study, the IgY supplemented group showed lower diarrhea occurrence compared to the control group. This study indicated that IgY diminished antigens which trigger diarrhea such as virus or E. coli according to the antigen-antibody reaction with them. This finding was agreed withe the previous studies (Kim et al.

제안 방법

Calves were kept under nursing barn with their mother cow. Experimental diets were offered twice daily (08:00 and 18:00h). All calves were allowed free access to fresh water.
Ten milliliters of blood was taken from the jugular vein, and then transfer into evacuated test tubes (Vacutainer, Becton 93 Dickinson Vacutainer Systems, Rutherford, NJ, USA) containing heparin (serum analysis) or EDTA (whole blood analysis) at the beginning and at end of each experiment period for analysis of blood metabolites. Tubes containing heparin were centrifuged at 3000×g for 15 min at 4℃.
This study was conducted to examine the effect of lgY supplementation on growth performance, blood metabolism, and disease occurrence in the weaned Hanwoo calves at 3 or 4 month of age.
For analyzing complete blood count (CBC), tubes containing EDTA were maintained for 12 hours at 4℃. White blood cell (WBC), neutrophil (NE), lymphocyte (LY), monocyte (MO), eosinophil (EO), basophil (BA), red blood cell (RBC), hemoglobin (Hb), hemoglobin (MCH), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), red cell distribution width (RDW), platelet (PLT) and mean platelet volume (MPV) were analyzed using the FORCYTE (FC-1217, Oxford science InC., USA).

대상 데이터

Twenty Hanwoo calves (average body weight 98.2±5.9 kg) were use in this trial.

이론/모형

The data from the experiment were analyzed using T-tests using SAS (1999). A p<0.
Total protein (TP), glucose, cholesterol, Mg, Ca, gamma(γ)-glutamyl transferase (GGT) and aspartate aminotransferase (AST) were analyzed using the Metabolic Profile Test (FDC-3500, Fuji, Japan).

성능/효과

The result of this study indicated that IgY supplementation did not effect on blood metabolism of Hanwoo calves.
These results implied that IgY supplementation decreased white blood cell (WBC), neutrophils (NE), nymphocytes (LY), monocytes (MO), eosinophils (EO) and basophils (BA) counts of the weaned calves, regardless of weaning age.

후속연구

Although water intake was not examined in the present study, we have never excluded that the possibility that red blood cells (RBC) count might be reduced by increased water intake according to the supplementation of IgY. Consequently, more research is needed.
However, This study might not conclude that supplementation of IgY supplemention has a positive effect on reduction of diarrhea occurrence in the weaned calves owing to limited number of experimental animal. Therefore, more research is needed to examine how IgY affect diarrhea occurrence in a large number of calves.

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