タイトル |
制限給餌による肉用鶏ふん排泄量の低減 |
担当機関 |
静岡県中小家畜試験場 |
研究期間 |
1999~2000 |
研究担当者 |
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発行年度 |
2000 |
要約 |
肉用鶏に対して5週齢から5日間、制限給餌(自由摂取の80%量)すると、発育成績に差がなく糞排泄量を低減できる。
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背景・ねらい |
肉用鶏は高密度飼育条件下で短期間に多量の糞を排泄しており、鶏糞の排泄量を低減できれば環境保全の観点から有益と考えられる。そこで肉用鶏からの糞排泄量低減対策を飼養管理面から検討した。
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成果の内容・特徴 |
5週齢から3日及び5日間、制限給餌(自由摂取の80%量)を行い、その後は自由摂取させて8週齢まで育成し、体重、排泄糞重量、解体歩留まり等に及ぼす影響を調査した。なお飼料は育成用後期飼料(CP18%,ME3.15kcal/kg)を給与した。
- 体重は対照区と差がなく、(図1)、体重もバラツキの程度も小さかった(表1)。また飼料消費量、飼料要求率、生存率も差は見られなかった。
- 5~8週齢までの一日一羽あたり排泄糞重量(風乾物)は、対照区に比較して5日制限区で有意に減少した(図2)。
- 解体歩留まりは制限給餌をすると対照区より筋胃は小さく、肝臓は大きくなった(表2)。
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成果の活用面・留意点 |
制限給餌直後は体重増加量が少ないが、その後回復する。しかし冬季は体重が回復するのが遅れるため、制限は80%量以内とする。
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図表1 |
![216252-1.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/216252-1.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIgEwtZ92pcT1CJIaBB%2BJvJjXAvgCng%2BZvA51QvPMfShAgCIQDFD4pbdr96mOHo7hVr3jJKU6roZYshj5pqnHVUnxanlSqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMzat7%2FfjlyFlXRQpKKu0Dcc%2Fhcv%2BtMS5roni6FO%2B7V5DKTBAhUrkG9nZFl1khgaKZfuKyMwCmF48THpTW5WMybEeYqjhuGM%2BjvXOj3Ge0AjbMHu5ArpiH2Pc6qJLzH2h9yKmq267oQiU1Y%2B7%2BIeqd03PbDxUoOianBjZztUcRe6eDdTVuGaz2kua6n41QlscUPDsVad7zWneNsfi%2BPpSDS%2B2Dw7YSphUOoCxLV%2BEnPWeIHvfrs%2BwXg%2BFbk7%2B7kuH0kWDCtyLw27EpUejl%2FjKmJoZsBpTmdpB07fflnxvURPI4pWlWfw67pFhqXtboSz1Vo6z2dqWGijaozTrcce%2FCt1cZcUlQ3%2B4yiyilczJXol17wau48dTAV5iI2GJWBJ7B6grX8LEex8mfD%2BmAooCDRgqG2%2BcWjTWjK6veky4L5GfOex6Ytkyrwn2gvZhoJmamIJl9U0xA0eV1noXgLO8O%2FmeKghBnXyjktPDtyBSZ8EIGwWWcEbtyef8k42R6oG1p3346OFZebVZyjoaA8Z%2BJWac99WYYduFiKRhje%2B5n20s8%2BSdC44Bz6b3FB8WXyhkVPrv2uiMvgbGGgd4wN2JVRuhvN9FrAfF%2FPpMsz2RUJZZD3uPvMWfmieiKjs2FB2EsWJHAQr84slpcdMgIm3iSskrVK%2FaxDqapeb6UJzD0%2F8WzBjqmAc%2BrcVOHc%2FVO0rrdLknlImRS8VU4rkm4QS7zYgf26Ouc4HDMRfIkmpzePeYqHZMKe8SXBYG7cKET5404Bil5QxuLMkoOVZJPrPNMbScm98lYH6cJyqXojHuBpBvXa9VCu5VJc4F9yqLzRnDuRQKhG1l5OjEq%2FTtZZLUUGAjRB3CV1bwo3l37trDFY9vP91OKvAxMfTwdf9y%2B%2B6WZ%2F1SbaeDLxFjAN9Q%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUSD5NORMI%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T124015Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=186372ae86a16efb0357a60e4702d30bd262dac60d47636baa15077a6ef81aae) |
図表2 |
![216252-2.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/216252-2.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIgEwtZ92pcT1CJIaBB%2BJvJjXAvgCng%2BZvA51QvPMfShAgCIQDFD4pbdr96mOHo7hVr3jJKU6roZYshj5pqnHVUnxanlSqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMzat7%2FfjlyFlXRQpKKu0Dcc%2Fhcv%2BtMS5roni6FO%2B7V5DKTBAhUrkG9nZFl1khgaKZfuKyMwCmF48THpTW5WMybEeYqjhuGM%2BjvXOj3Ge0AjbMHu5ArpiH2Pc6qJLzH2h9yKmq267oQiU1Y%2B7%2BIeqd03PbDxUoOianBjZztUcRe6eDdTVuGaz2kua6n41QlscUPDsVad7zWneNsfi%2BPpSDS%2B2Dw7YSphUOoCxLV%2BEnPWeIHvfrs%2BwXg%2BFbk7%2B7kuH0kWDCtyLw27EpUejl%2FjKmJoZsBpTmdpB07fflnxvURPI4pWlWfw67pFhqXtboSz1Vo6z2dqWGijaozTrcce%2FCt1cZcUlQ3%2B4yiyilczJXol17wau48dTAV5iI2GJWBJ7B6grX8LEex8mfD%2BmAooCDRgqG2%2BcWjTWjK6veky4L5GfOex6Ytkyrwn2gvZhoJmamIJl9U0xA0eV1noXgLO8O%2FmeKghBnXyjktPDtyBSZ8EIGwWWcEbtyef8k42R6oG1p3346OFZebVZyjoaA8Z%2BJWac99WYYduFiKRhje%2B5n20s8%2BSdC44Bz6b3FB8WXyhkVPrv2uiMvgbGGgd4wN2JVRuhvN9FrAfF%2FPpMsz2RUJZZD3uPvMWfmieiKjs2FB2EsWJHAQr84slpcdMgIm3iSskrVK%2FaxDqapeb6UJzD0%2F8WzBjqmAc%2BrcVOHc%2FVO0rrdLknlImRS8VU4rkm4QS7zYgf26Ouc4HDMRfIkmpzePeYqHZMKe8SXBYG7cKET5404Bil5QxuLMkoOVZJPrPNMbScm98lYH6cJyqXojHuBpBvXa9VCu5VJc4F9yqLzRnDuRQKhG1l5OjEq%2FTtZZLUUGAjRB3CV1bwo3l37trDFY9vP91OKvAxMfTwdf9y%2B%2B6WZ%2F1SbaeDLxFjAN9Q%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUSD5NORMI%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T124015Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=9a307b401a0f78e5b8915daae5cb1e6ac8eddaf268d7195b1b52bec9a4da67be) |
図表3 |
![216252-3.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/216252-3.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIgEwtZ92pcT1CJIaBB%2BJvJjXAvgCng%2BZvA51QvPMfShAgCIQDFD4pbdr96mOHo7hVr3jJKU6roZYshj5pqnHVUnxanlSqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMzat7%2FfjlyFlXRQpKKu0Dcc%2Fhcv%2BtMS5roni6FO%2B7V5DKTBAhUrkG9nZFl1khgaKZfuKyMwCmF48THpTW5WMybEeYqjhuGM%2BjvXOj3Ge0AjbMHu5ArpiH2Pc6qJLzH2h9yKmq267oQiU1Y%2B7%2BIeqd03PbDxUoOianBjZztUcRe6eDdTVuGaz2kua6n41QlscUPDsVad7zWneNsfi%2BPpSDS%2B2Dw7YSphUOoCxLV%2BEnPWeIHvfrs%2BwXg%2BFbk7%2B7kuH0kWDCtyLw27EpUejl%2FjKmJoZsBpTmdpB07fflnxvURPI4pWlWfw67pFhqXtboSz1Vo6z2dqWGijaozTrcce%2FCt1cZcUlQ3%2B4yiyilczJXol17wau48dTAV5iI2GJWBJ7B6grX8LEex8mfD%2BmAooCDRgqG2%2BcWjTWjK6veky4L5GfOex6Ytkyrwn2gvZhoJmamIJl9U0xA0eV1noXgLO8O%2FmeKghBnXyjktPDtyBSZ8EIGwWWcEbtyef8k42R6oG1p3346OFZebVZyjoaA8Z%2BJWac99WYYduFiKRhje%2B5n20s8%2BSdC44Bz6b3FB8WXyhkVPrv2uiMvgbGGgd4wN2JVRuhvN9FrAfF%2FPpMsz2RUJZZD3uPvMWfmieiKjs2FB2EsWJHAQr84slpcdMgIm3iSskrVK%2FaxDqapeb6UJzD0%2F8WzBjqmAc%2BrcVOHc%2FVO0rrdLknlImRS8VU4rkm4QS7zYgf26Ouc4HDMRfIkmpzePeYqHZMKe8SXBYG7cKET5404Bil5QxuLMkoOVZJPrPNMbScm98lYH6cJyqXojHuBpBvXa9VCu5VJc4F9yqLzRnDuRQKhG1l5OjEq%2FTtZZLUUGAjRB3CV1bwo3l37trDFY9vP91OKvAxMfTwdf9y%2B%2B6WZ%2F1SbaeDLxFjAN9Q%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUSD5NORMI%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T124015Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=0edc8254606e564c0078179668d6d3d8877bb16c6b63d23f92df5b59b1aa25ec) |
図表4 |
![216252-4.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/216252-4.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDmFwLW5vcnRoZWFzdC0xIkcwRQIgEwtZ92pcT1CJIaBB%2BJvJjXAvgCng%2BZvA51QvPMfShAgCIQDFD4pbdr96mOHo7hVr3jJKU6roZYshj5pqnHVUnxanlSqQBAgWEAIaDDUzMjMzMTA3MjA0MSIMzat7%2FfjlyFlXRQpKKu0Dcc%2Fhcv%2BtMS5roni6FO%2B7V5DKTBAhUrkG9nZFl1khgaKZfuKyMwCmF48THpTW5WMybEeYqjhuGM%2BjvXOj3Ge0AjbMHu5ArpiH2Pc6qJLzH2h9yKmq267oQiU1Y%2B7%2BIeqd03PbDxUoOianBjZztUcRe6eDdTVuGaz2kua6n41QlscUPDsVad7zWneNsfi%2BPpSDS%2B2Dw7YSphUOoCxLV%2BEnPWeIHvfrs%2BwXg%2BFbk7%2B7kuH0kWDCtyLw27EpUejl%2FjKmJoZsBpTmdpB07fflnxvURPI4pWlWfw67pFhqXtboSz1Vo6z2dqWGijaozTrcce%2FCt1cZcUlQ3%2B4yiyilczJXol17wau48dTAV5iI2GJWBJ7B6grX8LEex8mfD%2BmAooCDRgqG2%2BcWjTWjK6veky4L5GfOex6Ytkyrwn2gvZhoJmamIJl9U0xA0eV1noXgLO8O%2FmeKghBnXyjktPDtyBSZ8EIGwWWcEbtyef8k42R6oG1p3346OFZebVZyjoaA8Z%2BJWac99WYYduFiKRhje%2B5n20s8%2BSdC44Bz6b3FB8WXyhkVPrv2uiMvgbGGgd4wN2JVRuhvN9FrAfF%2FPpMsz2RUJZZD3uPvMWfmieiKjs2FB2EsWJHAQr84slpcdMgIm3iSskrVK%2FaxDqapeb6UJzD0%2F8WzBjqmAc%2BrcVOHc%2FVO0rrdLknlImRS8VU4rkm4QS7zYgf26Ouc4HDMRfIkmpzePeYqHZMKe8SXBYG7cKET5404Bil5QxuLMkoOVZJPrPNMbScm98lYH6cJyqXojHuBpBvXa9VCu5VJc4F9yqLzRnDuRQKhG1l5OjEq%2FTtZZLUUGAjRB3CV1bwo3l37trDFY9vP91OKvAxMfTwdf9y%2B%2B6WZ%2F1SbaeDLxFjAN9Q%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIUSD5NORMI%2F20240618%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T124015Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=b2c3a1c89d6aecb1cc4b6be1b445f9e4275f69d4e3077ef73498ac0eefb50117) |
カテゴリ |
飼育技術
鶏
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