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題 名 | 飼料添加富硒裂褶菌發酵物對蛋雞生產性能和蛋硒濃度之影響=Effects of Dietary Supplementation of Enriched Se Schizophyllum commune Culture on Performance and Egg Selenium Concentration in Laying Hens |
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作 者 | 郭季維; 許怡惠; 張永鍾; 李德南; | 書刊名 | 中國畜牧學會會誌 |
卷 期 | 45:1 2016.03[民105.03] |
頁 次 | 頁13-26 |
分類號 | 437.714 |
關鍵詞 | 抗氧化力; 蛋雞; 裂褶菌發酵物; 硒; Antioxidant; Hen; Schizophyllum commune culture; Selenium; |
語 文 | 中文(Chinese) |
中文摘要 | 接種裂褶菌( Schizophyllum commune)並添加硒( selenium, Se)進行固態發酵,可生成高分子量之多醣,亦可將硒由無機型式轉化成有機型式之富硒裂褶菌發酵物( enriched Se S. commune culture, Se-SCC),但其功能特性尚不明瞭,故本研究在探討飼料添加含不同硒量之 Se-SCC 對蛋雞生產性能、蛋硒濃度及硒蓄積率之影響。選用 400 隻 28 週齡海蘭褐殼蛋雞,逢機分配至 4 個處理組,分別為對照組(基礎飼料內含 0.2 mg/kg Se)、添加無機硒組(基礎飼料 + 由 Na2SeO3提供 0.15 mg/kg硒, SS)、添加 0.2% 含低硒量 Se-SCC 組(基礎飼料 + 由 Se-SCC 提供 0.15 mg/kg硒, LSCC)及添加 0.2% 含高硒量 Se-SCC 組(基礎飼料 + 由 Se-SCC 提供 0.60 mg/kg硒, HSCC),其中 Se-SCC 為以飼料原料為基質經添加亞硒酸鈉( Na2SeO3)與裂褶菌經固態發酵製成。每欄 25 隻,每處理 4 欄,飼於上置巢箱且鋪有粗糠之水泥地面上,以 4 週為 1 周期,連續測量 2 周期。每周期分析各欄的產蛋性能、逢機選取 2 顆蛋之蛋品質與蛋硒濃度,並於試驗結束分析雞隻血清抗氧化力。試驗結果顯示,隨著試驗周期顯著提高全期之蛋重和降低飼料換蛋率,且 LSCC 組和 HSCC 組於全期之平均飼料採食量顯著高於其他二組( P < 0.05),LSCC組全期之蛋重較 SS 組有提升的趨勢( P = 0.10),但飼料處理不影響全期之產蛋率、產蛋量、飼料換蛋率或新鮮蛋品質。額外添加硒之 3飼料處理組均可較對照組提高血清總抗氧化力( trolox equivalent antioxidant capacity, TEAC)及麩胺基硫過氧化酶( glutathione peroxidase, GPx)活性,其中更以 HSCC 組之量測值最高(P < 0.05),且具有較其他三組降低第 2 周期於室溫下儲存 10 天全蛋丙二醛(malondialdehyde, MDA)濃度之趨勢( P = 0.10)。蛋硒濃度可依飼料硒濃度提高而上升(y = – 0.0623 + 1.3229x – 0.8998x², R² = 0.76),但飼料硒之蓄積率隨飼料硒濃度提高而降低(y = 44.57 – 25.69x, R² = 0.49),其中相同硒量之 LSCC 較 SS 組提升硒之蓄積率達 4.2%(36.96 vs. 35.48%, P > 0.05)。綜合上述結果,飼料添加高硒量之富硒裂褶菌發酵物,可提高蛋雞抗氧化力與蛋硒濃度,但在相同低劑量硒濃度下,添加富硒裂褶菌發酵物仍不足以較無機硒提高硒之蓄積率。 |
英文摘要 | Addition of inorganic selenium (Se) in Schizophyllum commune solid fermentation can convert Se to the organic form and produce large molecular polysaccharide in the enriched Se S. commune culture (Se-SCC) but its´effect as feed additive is not yet clear. This trial was therefore conducted to evaluate effects of the different levels of Se content Se-SCC inclusion in layer feed on production performance and egg selenium concentration in laying hens. A total of 400 28-week-old laying hens were randomly allocated into sixteen pens with four dietary treatments: control diet, control diet supplemented with inorganic Se (0.15 mg/kg Se from Na2SeO3, SS), control diet supplemented with 0.2% low level Se-SCC (0.15 mg/kg Se from Se-SCC, LSCC), and control diet supplemented with 0.2% high level Se-SCC (0.60 mg/kg Se from Se-SCC, HSCC). Hens were housed in 4 m2 floor pens with set nests for 8 weeks. Production performance was measured weekly, and 2 eggs per pen were randomly collected every 4 weeks for analysis of egg quality and egg Se concentration. Two birds per pen were randomly selected and the blood samples taken at the end of the trial to assay serum antioxidant responses. Results showed the egg weights were increased and the feed/egg ratios went down as the trial progressed. Dietary supplementation of LSCC and HSCC significantly increased the ADFI than the other 2 groups (P < 0.05), and LSCC tended (P = 0.10) to enhance the egg weight than that of SS groups during whole trial period. However, dietary treatment showed little effect on egg production, egg mass, feed/egg ratio, or egg quality in the fresh stage. Supplementation of Se enhanced the serum trolox equivalent antioxidant capacity (TEAC) and glutathione peroxidase activity (GPx). Moreover, the HSCC was the highest among the groups which tended to reduce the egg malondialdehyde (MDA) level after 10 days storage in room temperature of the second period. Dietary supplementation of Se linearly increased egg Se concentration (y = – 0.0623 + 1.3229x – 0.8998x², R² = 0.76), but linearly reduced the egg Se deposition efficiency (y = 44.57-25.69x ; R² = 0.49). However, the LSCC was still 4.2% better in the Se deposition efficiency than that SS under the same dietary Se level (36.96 vs. 35.48%, P > 0.05). In conclusion, dietary supplementation of high dose of Se enriched S. commune culture was proven to improve egg antioxidant and egg Se, however, the Se deposition efficiency was similar as the inorganic Se under supplementation 0.15 mg/kg Se from LSCC. |
本系統中英文摘要資訊取自各篇刊載內容。