飼糧纖維素水平對生長豬氨基酸和磷的標準消化率評定的影響
發(fā)布時間：2019-05-31 15:45
【摘要】：本試驗研究了飼糧纖維素添加水平對生長豬內(nèi)源磷損失和氨基酸內(nèi)源回腸排泄量的影響,并研究了不同纖維水平對玉米-豆粕型飼糧中磷和氨基酸的標準回腸消化率的影響。完成本研究可為纖維飼料在豬營養(yǎng)生產(chǎn)中的應(yīng)用提供科學依據(jù)。本研究包括兩個部分：試驗一,本研究通過兩個試驗考察了飼糧纖維水平對生長豬內(nèi)源磷損失(EPL)和玉米-豆粕型飼糧中磷的標準回腸消化率(SID)和標準全腸道消化率(STTD)的影響。試驗1選用28頭回腸末端安裝了簡單T型瘺管的生長豬(體重25.1-2.0kg),按完全隨機設(shè)計,分為4個組,每組7個重復,每個重復1頭豬,分別飼喂添加了4個纖維水平(0、3%、6%和9%)的無磷飼糧。試驗2選用28頭回腸末端安裝了簡單T型瘺管的生長豬,按完全隨機設(shè)計,分為4個組,每組7個重復,每個重復1頭豬,分別飼喂添加了4個纖維水平(0、3%、6%和9%)的玉米-豆粕型飼糧。每個試驗包括5d的適應(yīng)期,2d的糞樣收集期(第6d和第7 d)和2d的食糜收集期(第8d和第9 d)。以三氧化二鉻作為指示劑測定EPL和磷的消化率。結(jié)果表明,試驗測得生長豬全腸道EPL隨飼糧纖維添加水平提高而線性降低(P0.05)。磷的表觀回腸消化率(AID)、表觀全腸道消化率(ATTD)、SID和STTD隨飼糧纖維水平提高而降低(P0.05)。試驗二,本研究通過兩個試驗考察了飼糧纖維素添加水平對生長豬氨基酸的回腸內(nèi)源排泄量(IEF)和玉米-豆粕型飼糧中氨基酸的表觀回腸消化率(AID)和標準回腸消化率(SID)的影響。試驗1選用28頭回腸末端安裝了簡單T型瘺管的生長豬(體重25.1±2.0kg),按完全隨機區(qū)組設(shè)計,分為4個處理組,每組7個重復,每個重復1頭豬,分別飼喂添加了4個纖維素添加水平(0、3%、6%和9%)的無氮飼糧。試驗2選用28頭回腸末端安裝了簡單T型瘺管的生長豬,按完全隨機區(qū)組設(shè)計,分為4個處理組,每組7個重復,每個重復1頭豬,分別飼喂添加了4個纖維素添加水平(0、3%、6%和9%)的玉米-豆粕型飼糧。每個試驗包括7d的適應(yīng)期,2d的食糜收集期(第8d和第9d)。以三氧化二鉻作為指示劑測定氨基酸IEF和氨基酸的消化率。結(jié)果表明,飼糧纖維素添加水平對生長豬氨基酸IEF無顯著影響(P0.05)。蘇氨酸、絲氨酸、谷氨酸、胱氨酸、異亮氨酸、酪氨酸、苯丙氨酸、賴氨酸和組氨酸AID隨纖維素添加水平增加顯著線性降低(P0.05)。蘇氨酸、絲氨酸、胱氨酸、纈氨酸、異亮氨酸、酪氨酸、苯丙氨酸、賴氨酸和組氨酸SID隨纖維素添加水平增加顯著線性降低(P0.05)。綜合以上結(jié)果,在本試驗條件下,豬對無磷飼糧纖維素適宜的添加水平為3%-6%,玉米-豆粕型飼糧建議不添加。飼糧纖維水平顯著影響生長豬EPL和玉米-豆粕型飼糧中磷消化率的測定。飼糧纖維素添加水平對生長豬氨基酸IEF的評定無顯著影響,但飼糧氨基酸AID和SID隨纖維素添加水平增加顯著線性降低。
[Abstract]:The effects of dietary cellulose supplementation on the loss of intracellular phosphorus and the excretion of amino acids in growing pigs were studied, and the effects of different fiber levels on the standard ileal digestibility of phosphorus and amino acids in corn-soybean meal diet were also studied. This study can provide scientific basis for the application of fiber feed in pig nutrition production. This study consists of two parts: experiment 1, In this study, the effects of dietary fiber levels on the standard ileal digestibility (SID) and standard total intestinal digestibility (STTD) of phosphorus in growing pigs and corn-soybean meal diet were investigated by two experiments. In experiment 1, 28 growing pigs with simple T-type fistula at the end of ileum (body weight 25.1-2.0kg) were randomly divided into 4 groups with 7 repeats in each group and 1 pig in each group. Four fiber levels (0, 3%, 6% and 9%) were fed with phosphorus-free diet. In experiment 2, 28 growing pigs with simple T-type fistula at the end of ileum were randomly divided into 4 groups with 7 repeats in each group, and one pig in each group was fed with 4 fiber levels (0, 3%). 6% and 9%) corn-soybean meal diet. Each trial included an adaptation period of 5 days, a fecal sample collection period of 2 days (day 6 and day 7) and a chyme collection period of day 2 (day 8 and day 9 d). The digestibility of EPL and phosphorus was determined with chromium trioxide as indicator. The results showed that the total intestinal EPL of growing pigs decreased linearly with the increase of dietary fiber level (P 0.05). The apparent ileal digestibility of phosphorus (AID), apparent total intestinal digestibility (ATTD), SID and STTD decreased with the increase of dietary fiber level (P 0.05). Experiment two, In this study, the apparent ileal digestibility (AID) and standard ileal digestion of amino acids in growing pigs and corn-soybean meal diet were investigated by two experiments. The effects of dietary cellulose supplementation levels on the internal excretion of amino acids in the ileum of growing pigs and the apparent ileal digestibility of amino acids in corn-soybean meal diet were investigated. The effect of rate (SID). In experiment 1, 28 growing pigs with simple T-type fistula at the end of ileum (weight 25.1 鹵2.0 kg),) were divided into 4 treatment groups, 7 repeats in each group and 1 pig in each group. Four cellulose supplementation levels (0, 3%, 6% and 9%) were fed with nitrogen-free diet. In experiment 2, 28 growing pigs with simple T-type fistula at the end of ileum were divided into 4 treatment groups according to the completely random block design, with 7 repeats in each group and 1 pig in each group. Corn-soybean meal diet with four cellulose supplementation levels (0, 3%, 6% and 9%) was fed. Each trial included an adaptation period of 7 days and a chyme collection period of 2 days (8 days and 9 days). The digestibility of amino acid IEF and amino acid was determined with chromium trioxide as indicator. The results showed that dietary cellulose supplementation had no significant effect on amino acid IEF in growing pigs (P 0.05). Threonine, serine, glutamic acid, cystine, isoleucine, tyrosine, phenylalanine, lysine and histidine AID decreased linearly with the increase of cellulose addition level (P 0.05). Threonine, serine, cystine, valine, isoleucine, tyrosine, phenylalanine, lysine and histidine SID decreased linearly with the increase of cellulose addition level (P 0.05). Under the conditions of this experiment, the suitable addition level of cellulose to phosphorus-free diet was 3% 鈮，
本文編號：2489821
[Abstract]:The effects of dietary cellulose supplementation on the loss of intracellular phosphorus and the excretion of amino acids in growing pigs were studied, and the effects of different fiber levels on the standard ileal digestibility of phosphorus and amino acids in corn-soybean meal diet were also studied. This study can provide scientific basis for the application of fiber feed in pig nutrition production. This study consists of two parts: experiment 1, In this study, the effects of dietary fiber levels on the standard ileal digestibility (SID) and standard total intestinal digestibility (STTD) of phosphorus in growing pigs and corn-soybean meal diet were investigated by two experiments. In experiment 1, 28 growing pigs with simple T-type fistula at the end of ileum (body weight 25.1-2.0kg) were randomly divided into 4 groups with 7 repeats in each group and 1 pig in each group. Four fiber levels (0, 3%, 6% and 9%) were fed with phosphorus-free diet. In experiment 2, 28 growing pigs with simple T-type fistula at the end of ileum were randomly divided into 4 groups with 7 repeats in each group, and one pig in each group was fed with 4 fiber levels (0, 3%). 6% and 9%) corn-soybean meal diet. Each trial included an adaptation period of 5 days, a fecal sample collection period of 2 days (day 6 and day 7) and a chyme collection period of day 2 (day 8 and day 9 d). The digestibility of EPL and phosphorus was determined with chromium trioxide as indicator. The results showed that the total intestinal EPL of growing pigs decreased linearly with the increase of dietary fiber level (P 0.05). The apparent ileal digestibility of phosphorus (AID), apparent total intestinal digestibility (ATTD), SID and STTD decreased with the increase of dietary fiber level (P 0.05). Experiment two, In this study, the apparent ileal digestibility (AID) and standard ileal digestion of amino acids in growing pigs and corn-soybean meal diet were investigated by two experiments. The effects of dietary cellulose supplementation levels on the internal excretion of amino acids in the ileum of growing pigs and the apparent ileal digestibility of amino acids in corn-soybean meal diet were investigated. The effect of rate (SID). In experiment 1, 28 growing pigs with simple T-type fistula at the end of ileum (weight 25.1 鹵2.0 kg),) were divided into 4 treatment groups, 7 repeats in each group and 1 pig in each group. Four cellulose supplementation levels (0, 3%, 6% and 9%) were fed with nitrogen-free diet. In experiment 2, 28 growing pigs with simple T-type fistula at the end of ileum were divided into 4 treatment groups according to the completely random block design, with 7 repeats in each group and 1 pig in each group. Corn-soybean meal diet with four cellulose supplementation levels (0, 3%, 6% and 9%) was fed. Each trial included an adaptation period of 7 days and a chyme collection period of 2 days (8 days and 9 days). The digestibility of amino acid IEF and amino acid was determined with chromium trioxide as indicator. The results showed that dietary cellulose supplementation had no significant effect on amino acid IEF in growing pigs (P 0.05). Threonine, serine, glutamic acid, cystine, isoleucine, tyrosine, phenylalanine, lysine and histidine AID decreased linearly with the increase of cellulose addition level (P 0.05). Threonine, serine, cystine, valine, isoleucine, tyrosine, phenylalanine, lysine and histidine SID decreased linearly with the increase of cellulose addition level (P 0.05). Under the conditions of this experiment, the suitable addition level of cellulose to phosphorus-free diet was 3% 鈮，
本文編號：2489821
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