生姜、八角和丹參對萊蕪黑豬生產(chǎn)性能、胴體品質(zhì)和抗氧化性能的影響
發(fā)布時間：2019-03-09 18:18
【摘要】：為了弄清生姜、八角和丹參對萊蕪黑豬生產(chǎn)性能、養(yǎng)分利用率、胴體品質(zhì)、抗氧化性能和腸道發(fā)育的影響。本課題選斷奶后70 d萊蕪黑豬24頭,隨機(jī)分為4個處理,每個處理6個重復(fù)。對照組飼喂基礎(chǔ)日糧(CTR),試驗組在基礎(chǔ)日糧的基礎(chǔ)上分別添加10 g/kg生姜(GIN)、5 g/kg八角(SA)和10 g/kg丹參(DS)。試驗分三個階段:生長前期(15~30 kg)、生長后期(30~60 kg)和育肥期(60~90 kg)三個階段。預(yù)試期7天,正式期161天。研究結(jié)果表明:日糧中添加生姜、八角和丹參對萊蕪黑豬整個生長育肥期生產(chǎn)性能和生長期養(yǎng)分表觀利用率均無顯著影響,但八角和丹參可顯著提高育肥期粗脂肪的表觀利用率。與對照組相比,日糧中添加生姜、八角和丹參能提高萊蕪黑豬的抗氧化水平(P0.05);提高背膘厚、背最長肌中粗蛋白和粗脂肪的含量(P0.05);能顯著降低(P0.05)板油比例、背最長肌滴水損失、水分含量以及盲腸中大腸桿菌數(shù);日糧中添加生姜可顯著提高回腸和空腸中脂肪酶活性(P0.05);添加八角可顯著提高(P0.05)皮厚和眼肌面積,提高回腸中胰蛋白酶活性(P0.05),降低盲腸中乳酸桿菌數(shù)(P0.05);添加丹參可顯著提高(P0.05)屠宰率,降低(P0.05)血清中TCHO的含量和盲腸中大腸桿菌數(shù);生姜和丹參顯著提高了盲腸中好氧菌數(shù)(P0.05)。三種植物添加劑間相比,生姜顯著降低了(P0.05)背最長肌的滴水損失;八角能顯著提高(P0.05)皮厚和肌肉中粗蛋白的含量,降低盲腸中大腸桿菌數(shù)(P0.05);丹參能顯著提高背膘厚和盲腸中乳酸桿菌數(shù)(P0.05),降低大腸桿菌數(shù)(P0.05)。綜上所述,日糧中添加1.0%生姜、0.5%八角和1.0%丹參可不同程度的改善萊蕪黑豬的胴體性狀、肉品質(zhì)和盲腸微生物區(qū)系,調(diào)節(jié)肌肉營養(yǎng)成分的再分配,提高機(jī)體抗氧化水平和腸道中消化酶的活性,促進(jìn)萊蕪黑豬的健康生長。
[Abstract]:In order to understand the effects of ginger, octagon and salvia miltiorrhiza on growth performance, nutrient utilization rate, carcass quality, antioxidant performance and intestinal development of Laiwu black pig. Twenty-four Laiwu black pigs were randomly divided into 4 treatments, each with 6 duplications. The control group was fed with basal diet (CTR),. On the basis of basal diet, 10 g/kg ginger (GIN), 5 g/kg octagonal (SA) and 10 g/kg Salvia miltiorrhiza (DS). Were added to the trial group, respectively. The experiment was divided into three stages: early growth stage (15 ~ 30 kg), growth anaphase (30 ~ 60 kg) and fattening stage (60 ~ 90 kg). The pre-test period is 7 days and the formal period is 161 days. The results showed that there were no significant effects on the growth performance and apparent nutrient utilization rate of Laiwu Black Pig during the whole growth and finishing period with the addition of ginger in the diet, and there were no significant effects on the growth performance of Laiwu Black Pig. But octagonal and salvia miltiorrhiza could significantly improve the apparent utilization rate of crude fat during fattening. Compared with the control group, diet supplemented with ginger, octagon and salvia miltiorrhiza can improve the antioxidant level of Laiwu black pig (P0.05), increase the backfat thickness, the content of crude protein and crude fat in the longissimus dorsi muscle (P0.05). Could significantly reduce (P0.05) plate oil ratio, the longest back muscle drop loss, water content and the number of Escherichia coli in the cecum; diet supplemented with ginger significantly increased lipase activity in ileum and jejunum (P0.05); Addition of octagon significantly increased skin thickness and eye muscle area, increased trypsin activity in ileum (P0.05), and decreased the number of lactic acid bacilli in cecum (P0.05). Addition of Salvia miltiorrhiza could significantly increase (P0.05) slaughter rate, decrease (P0.05) the content of serum TCHO and the number of Escherichia coli in cecum, ginger and salvia miltiorrhiza significantly increased the number of aerobic bacteria in cecum (P0.05). Among the three plant additives, ginger significantly reduced (P0.05) the water loss of the longest back muscle, octagon significantly increased skin thickness and muscle crude protein content, decreased the number of coliform bacteria in the cecum (P0.05); Salvia miltiorrhiza significantly increased backfat thickness and the number of lactic acid bacilli in cecum (P0.05), decreased coliform bacteria (P0.05). In conclusion, 1.0% ginger, 0.5% octagon and 1.0% salvia miltiorrhiza can improve carcass traits, meat quality and caecum microflora of Laiwu Black pigs in varying degrees, and regulate the redistribution of muscle nutrients. In order to promote the healthy growth of Laiwu black pig, the antioxidant level and digestive enzyme activity in intestinal tract were increased.
【學(xué)位授予單位】：山東農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S828.5
本文編號：2437737
[Abstract]:In order to understand the effects of ginger, octagon and salvia miltiorrhiza on growth performance, nutrient utilization rate, carcass quality, antioxidant performance and intestinal development of Laiwu black pig. Twenty-four Laiwu black pigs were randomly divided into 4 treatments, each with 6 duplications. The control group was fed with basal diet (CTR),. On the basis of basal diet, 10 g/kg ginger (GIN), 5 g/kg octagonal (SA) and 10 g/kg Salvia miltiorrhiza (DS). Were added to the trial group, respectively. The experiment was divided into three stages: early growth stage (15 ~ 30 kg), growth anaphase (30 ~ 60 kg) and fattening stage (60 ~ 90 kg). The pre-test period is 7 days and the formal period is 161 days. The results showed that there were no significant effects on the growth performance and apparent nutrient utilization rate of Laiwu Black Pig during the whole growth and finishing period with the addition of ginger in the diet, and there were no significant effects on the growth performance of Laiwu Black Pig. But octagonal and salvia miltiorrhiza could significantly improve the apparent utilization rate of crude fat during fattening. Compared with the control group, diet supplemented with ginger, octagon and salvia miltiorrhiza can improve the antioxidant level of Laiwu black pig (P0.05), increase the backfat thickness, the content of crude protein and crude fat in the longissimus dorsi muscle (P0.05). Could significantly reduce (P0.05) plate oil ratio, the longest back muscle drop loss, water content and the number of Escherichia coli in the cecum; diet supplemented with ginger significantly increased lipase activity in ileum and jejunum (P0.05); Addition of octagon significantly increased skin thickness and eye muscle area, increased trypsin activity in ileum (P0.05), and decreased the number of lactic acid bacilli in cecum (P0.05). Addition of Salvia miltiorrhiza could significantly increase (P0.05) slaughter rate, decrease (P0.05) the content of serum TCHO and the number of Escherichia coli in cecum, ginger and salvia miltiorrhiza significantly increased the number of aerobic bacteria in cecum (P0.05). Among the three plant additives, ginger significantly reduced (P0.05) the water loss of the longest back muscle, octagon significantly increased skin thickness and muscle crude protein content, decreased the number of coliform bacteria in the cecum (P0.05); Salvia miltiorrhiza significantly increased backfat thickness and the number of lactic acid bacilli in cecum (P0.05), decreased coliform bacteria (P0.05). In conclusion, 1.0% ginger, 0.5% octagon and 1.0% salvia miltiorrhiza can improve carcass traits, meat quality and caecum microflora of Laiwu Black pigs in varying degrees, and regulate the redistribution of muscle nutrients. In order to promote the healthy growth of Laiwu black pig, the antioxidant level and digestive enzyme activity in intestinal tract were increased.
【學(xué)位授予單位】：山東農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S828.5
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