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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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Ⅰ. 서론 8

Ⅱ. 조사대상 농가 및 조사방법 12

1. 조사지역 및 대상농가 12

2. 조사내용 및 방법 13

(1) 교배 및 번식 성적 13

(2) 분만 성적 13

(3) 이유 성적 13

3. 통계 처리 및 분석 14

Ⅲ. 결과 및 고찰 15

1. 교배 및 번식 성적 15

2. 분만 성적 19

3. 이유 성적 24

4. 상관관계 28

Ⅳ. 요약 32

Ⅴ. 참고문헌 33

ABSTRACT 38

감사의 글 40

List of Table

Table 1. Mean and standard deviation for number of sow in pig farms 12

Table 2. Mean and standard deviation for mating and reproductive performance 15

Table 3. Mean and standard deviation for farrowing performance (Unit: heads, %) 20

Table 4. Mean and standard deviation for weaning performance 24

Table 5. Correlation coefficients between mating and reproductive performance 29

List of Figure

Fig. 1. Mean and standard deviation for farrowing rate per year in pig farms. 16

Fig. 2. Mean and standard deviation for PSY in pig farms. 17

Fig. 3. Mean and standard deviation for total litter size in pig farms. 21

Fig. 4. Mean and standard deviation for conception rate in pig farms. 23

Fig. 5. Mean and standard deviation for age at weaning in pig farms. 26

Fig. 6. Mean and standard deviation for growing rate of piglets in pig farms. 27

초록보기

This study was carried out in order to investigate the reproductive and weaning performances in hongsung pig farms raising the total 300 and over sows. And then, these correlation were estimated by these data from their items as mating, reproductive and weaning performance.

The results obtained from this study were abstracted as follows;

1. The farrowing rate of sow per year averaged 2.38 times. The PSY were 2.82 pigs, and then days of estrus return were 5.72 days.

2. The average of litter size were 11.33 heads, total pigs born alive were 10.28 heads, and then conception rate was 84.33 percent.

3. The number of weaning and age at weaning averaged 9.55 pigs and 24.17 days, and then growing rate of piglets was 93.08 percent.

4. The total litter was positively correlated with the pigs born alive(r=579), and the number of weaning(r=0.577). The correlation of PSY and the farrowing rate per year was 0.769 (p<0.01). Age at weaning was negatively correlated with PSY (r=-0.491).

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