天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

苧麻的飼用價值評定及其在山羊生產(chǎn)中的利用方法和效果研究

發(fā)布時間:2018-07-17 02:59
【摘要】:本課題主要研究苧麻在肉羊生產(chǎn)中的利用效果和利用方式,為苧麻在肉羊生產(chǎn)中的合理利用提供參考,主要分為以下三個部分:試驗(yàn)一:本試驗(yàn)通過體外產(chǎn)氣法與尼龍袋法分別對苧麻葉片、苧麻全株以及去麻纖維苧麻的飼用價值進(jìn)行評定。采用體外產(chǎn)氣法測定苧麻葉片、苧麻全株以及去麻纖維苧麻的72 h動態(tài)產(chǎn)氣量,并求得產(chǎn)氣參數(shù);并用上述三種原料進(jìn)行尼龍袋試驗(yàn),測定其干物質(zhì)(DM)、粗蛋白質(zhì)(CP)、中性洗滌纖維(NDF)及酸性洗滌纖維(ADF)的降解率,求得降解參數(shù)。結(jié)果表明,產(chǎn)氣試驗(yàn)中,苧麻全株在72 h時累計(jì)發(fā)酵產(chǎn)氣量及理論最大產(chǎn)氣量均最高,顯著高于去麻纖維苧麻(P0.05),苧麻葉片居中,苧麻葉片與苧麻全株和去麻纖維苧麻均差異不顯著(P0.05),去麻纖維苧麻最低。尼龍袋試驗(yàn)中,苧麻葉片、苧麻全株、去麻纖維苧麻在72 h時DM、CP、NDF及ADF的降解率由大到小依次為苧麻葉片苧麻全株去麻纖維苧麻,DM、NDF、ADF有效降解率也以苧麻葉片最大,苧麻全株居中,去麻纖維苧麻最低,然而CP有效降解率則表現(xiàn)出苧麻全株最大,苧麻葉片居中,去麻纖維苧麻最低。從總體有效降解率來看,苧麻葉片和苧麻全株的利用效果要優(yōu)于去麻纖維苧麻。試驗(yàn)二:本試驗(yàn)以去纖維苧麻干草作為材料,分別以不同比例添加到山羊日糧中,以探究苧麻不同比例飼喂山羊的飼喂效果及適宜添加量。試驗(yàn)選用20只體況良好、體重相近的瀏陽黑山羊,隨機(jī)分為4組,每組5個重復(fù),每個重復(fù)1只羊。對照組為基礎(chǔ)日糧不添加苧麻T0(基礎(chǔ)日糧中24%稻秸+36%苜蓿),處理一組T30(24%稻秸+25.2%苜蓿+10.8%苧麻)、處理二組T60(24%稻秸+14.4%苜蓿+21.6%苧麻)和處理三組T100(24%稻秸+0%苜蓿+36%苧麻),試驗(yàn)期54天,預(yù)飼期14天,正飼期40天。測定山羊的生長性能、瘤胃液指標(biāo)、血液生化指標(biāo)、屠宰性能、養(yǎng)分表觀消化率及肉品質(zhì)指標(biāo)。結(jié)果表明,1)凈增重、平均日增重和平均日采食量都以T100T0T60T30,但是差異不顯著(P0.05),料重比以T100TOT60T30,差異也不顯著(P0.05),單獨(dú)飼喂苧麻效果優(yōu)于對照組及單獨(dú)飼喂苜蓿組。2)與對照組相比,T30組、T60組和T100組瘤胃氨氮含量、總VFA含量、乙酸、丙酸和乙丙比無顯著差異(P0.05),飼喂芒麻與飼喂苜蓿瘤胃發(fā)酵結(jié)果相近。3)日糧添加苧麻干草對血液中尿素和甘油三酯含量影響差異顯著(P0.05),T100組尿素含量顯著低于對照組(P0.05),T60組和T100組甘油三酯含量顯著高于對照組(P0.05)。4)日糧添加苧麻干草對CP表觀消化率、Ash表觀消化率、NDF表觀消化率和ADF表觀消化率影響差異顯著(P0.05),上述幾個指標(biāo)的表觀消化率順序?yàn)門0T30T60T100。5)日糧添加苧麻干草對屠宰率、各內(nèi)臟重量、眼肌面積影響差異不顯著(P0.05),與對照組相近。6)日糧添加苧麻干草對肉品質(zhì)指標(biāo)影響差異不顯著(P0.05)?傮w來看,苧麻飼喂山羊與苜蓿飼喂山羊效果相近,雖然營養(yǎng)物質(zhì)表觀消化率不及苜蓿,但沒有影響山羊的生長性能等。所以,苧麻在山羊上利用效果較好。試驗(yàn)三:本試驗(yàn)探討苧麻不同加工處理方式下對山羊飼喂的效果,研究苧麻在山羊生產(chǎn)中的合理利用方式。試驗(yàn)采用2×2因子試驗(yàn)設(shè)計(jì),因子1為苧麻加工處理,分為苧麻青貯和苧麻干草,因子2為苧麻纖維處理,分為去麻纖維和不去麻纖維。試驗(yàn)選用32只體況良好、體重相近的瀏陽黑山羊,隨機(jī)分為4組,每組8個重復(fù),每個重復(fù)1只羊,處理1為去除麻纖維后苧麻青貯組SD,處理2為不去除麻纖維苧麻青貯組SF,處理3為去除麻纖維后苧麻干草組HD,處理4為不去麻纖維苧麻干草組HF,試驗(yàn)期54天,預(yù)飼期14天,正飼期40天,測定山羊的生長性能、瘤胃液指標(biāo)、血液生化指標(biāo)、屠宰性能、養(yǎng)分表觀消化率及肉品質(zhì)指標(biāo)。結(jié)果表明,1)苧麻不同加工處理對山羊凈增重、平均日采食量和料重比影響差異不顯著(P0.05),對山羊平均日增重有顯著交互影響作用(P0.05)。2)苧麻不同加工處理對瘤胃液氨氮含量、總VFA含量、乙酸含量、丙酸含量、丁酸含量和乙丙比影響差異不顯著(P0.05)。3)苧麻不同加工處理對血液中谷草轉(zhuǎn)氨酶含量、尿素含量、甘油三酯含量、磷含量有顯著的交互影響作用(P0.05)。苧麻加工處理對球蛋白、低密度脂蛋白有影響差異顯著(P0.05),都以苧麻干草處理組顯著高于苧麻青貯處理組(P0.05)。苧麻纖維處理對低密度脂蛋白含量影響差異顯著(P0.05),以去纖維處理組顯著大于不去纖維處理組(P0.05)。4)苧麻加工處理和苧麻纖維處理分別對DM表觀消化率、CP表觀消化率、NDF表觀消化率、ADF表觀消化率影響差異顯著(P0.05),苧麻加工處理都以苧麻干草各組顯著大于苧麻青貯各組(P0.05);苧麻纖維處理都以不去纖維組顯著大于去纖維組(P0.05)。此外,苧麻加工處理對Ash表觀消化率有顯著影響(P0.05),以苧麻干草處理組大于苧麻青貯處理組(P0.05)。5)苧麻不同處理方式對屠宰性能影響差異不顯著(P0.05)。6)肉品質(zhì)指標(biāo)中,以苧麻纖維處理對肉品質(zhì)影響較大,其中對肌肉45min時PH為苧麻去纖維組顯著大于苧麻不去纖維組(P0.05),而24h肌肉PH與45min時相反,為苧麻不去纖維組顯著大于苧麻去纖維組(P0.05);對兩時間點(diǎn)各部位肌肉紅度a*和黃度b*以苧麻去纖維組顯著大于苧麻不去纖維組(P0.05),亮度L*與紅度a*和黃度b*相反,以苧麻不去纖維組顯著大于苧麻去纖維組(P0.05)。對肌肉中粗蛋白量、部分氨基酸含量、部分脂肪酸含量影響差異顯著(P0.05),都以苧麻去纖維顯著高于苧麻不去纖維組(P0.05)。
[Abstract]:This subject mainly studies the utilization effect and utilization method of ramie in the production of mutton sheep. It provides reference for the rational utilization of ramie in the production of meat and sheep. It is divided into the following three parts: Test 1: the test of this experiment is to evaluate the feeding value of ramie leaf, ramie whole plant and Ramie by nylon bag method, respectively. In vitro gas production method was used to determine the dynamic gas production of ramie leaves, ramie whole plants and ramie 72 h, and to obtain gas production parameters, and the nylon bag test was carried out with the three kinds of raw materials mentioned above. The degradation rate of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF) and acid washing fiber (ADF) were measured, and the degradation parameters were obtained. The results showed that during the gas production test, the cumulative fermentation gas production and the maximum theoretical gas production were the highest at 72 h, significantly higher than that of Ramie (P0.05), ramie leaves, ramie leaves and ramie fiber ramie were not significant (P0.05), and the ramie fiber was the lowest. The degradation rate of DM, CP, NDF and ADF of ramie at 72 h was in turn from ramie to ramie, ramie, DM, NDF, NDF, ADF, and ramie, and ramie, and ramie, and ramie were the lowest. However, the effective degradation rate of CP showed the largest ramie plant, the middle ramie leaves, and the hemp fiber. According to the overall effective degradation rate, the utilization effect of ramie leaf and ramie whole plant is better than that of hemp fiber ramie. Test two: this experiment was added to the goat diet with different proportion of ramie hay as material, in order to explore the feeding effect and suitable amount of the goat in different proportion of ramie. 20 Liuyang black goats with good body weight and close weight were randomly divided into 4 groups, with 5 replicates in each group and 1 sheep for each. The control group did not add ramie T0 (24% rice straw +36% alfalfa) in basal diet, treated a group of T30 (24% rice straw +25.2% alfalfa +10.8% ramie), and treated two groups of T60 (24% rice straw +14.4% alfalfa +21.6% ramie) and treatment. Three groups of T100 (24% rice straw, alfalfa +36% ramie), 54 days in the test period, 14 days in the pre feeding period and 40 days in the positive feeding period, determine the growth performance of the goat, the index of gastric juice, the biochemical index of blood, the slaughter performance, the apparent digestibility of nutrient and the meat quality index. The results show that the average daily gain and average daily intake are T100T0T60T30, but the difference is no more than that of 1). Significantly (P0.05), the material weight ratio was T100TOT60T30, the difference was not significant (P0.05), the effect of feeding ramie alone was superior to the control group and alfalfa group.2 alone. Compared with the control group, the rumen nitrogen content, total VFA content, acetic acid, propionic acid and ethylene propylene ratio in group T30, T60 and T100 groups were not significantly different (P0.05), and the results were fed with cannabis and alfalfa rumen fermentation results. The effects of ramie hay on the content of urea and triglyceride in the blood were significantly different (P0.05), and the urea content in group T100 was significantly lower than that of the control group (P0.05), and the content of triglyceride in T60 and T100 groups was significantly higher than that of the control group (P0.05).4), and the addition of ramie hay to the CP apparent digestibility, Ash apparent digestibility, NDF apparent digestibility and ADF were added to the diet of T60 and T100 groups. The apparent digestibility had a significant difference (P0.05). The apparent digestibility of the above indexes was T0T30T60T100.5). The effects of ramie hay on the slaughter rate, the visceral weight and the area of eye muscle were not significant (P0.05), and the effect of ramie hay on the meat quality indexes was not significant (P0.05). The difference was not significant (P0.05). The effect of ramie feeding goats and alfalfa fed goats was similar, although the apparent digestibility of nutrients was less than alfalfa, but it did not affect the growth performance of goats. Therefore, the effect of Ramie on goats was better. Experiment three: the effect of ramie feeding on different processing methods of ramie was discussed, and the ramie in the production of goats was studied. The experiment adopted 2 x 2 factor test design, factor 1 for ramie processing, divided into ramie silage and ramie hay, factor 2 for ramie fiber treatment, divided into hemp fiber and non hemp fiber. The experiment selected 32 Liuyang black goats with good body weight and similar weight, which were randomly divided into 4 groups, 8 replicates each group, and repeat 1 sheep in each group. Treatment 1 to remove ramie silage group SD after hemp fiber removal, treatment 2 is not to remove hemp fiber ramie silage group SF, treatment 3 to remove ramie hay group HD after hemp fiber treatment, treatment 4 is not to go to ramie hay group HF, test period 54 days, 14 days of pre feeding, 40 days in positive feeding period, determine the growth performance of goats, tumor gastric juice indexes, blood biochemical indexes, slaughter sex Ability, nutrient apparent digestibility and meat quality index. The results showed that 1) the net weight gain, average daily intake and weight ratio of ramie were not significant (P0.05), and the average daily gain of goats had significant interaction effect (P0.05).2) the content of ammonia nitrogen, total VFA content and acetic acid content in different processing treatment of ramie. There was no significant difference in the content of propionic acid, butyric acid and EPR (P0.05).3) the different processing treatments of ramie had significant interaction effect on the content of glutamic aminotransferase, urea, triglyceride and phosphorus in the blood (P0.05). The difference of the effects of Ramie processing on globulin and low density lipoprotein was significant (P0.05), all of which were ramie dry The grass treatment group was significantly higher than the ramie silage treatment group (P0.05). The effect of ramie fiber treatment on low density lipoprotein content was significantly different (P0.05), and the fiber treatment group was significantly greater than non fiber treatment group (P0.05).4) ramie processing and ramie fiber treatment to DM apparent digestibility, CP apparent digestibility, NDF apparent digestibility, ADF table. There was significant difference in the influence of the apparent digestibility (P0.05), the ramie hay was significantly greater than the ramie silage group (P0.05), and the ramie fiber treatment was significantly greater than the fiber group (P0.05). In addition, the ramie processing treatment had a significant influence on the apparent digestibility of Ash (P0.05), and the ramie hay treatment group was larger than the ramie green. The effect of different treatment methods on the slaughter performance of Ramie (P0.05.5) was not significant (P0.05).6). In the meat quality index, the effect of ramie fiber treatment on meat quality was greater, in which the PH for the muscle 45min was significantly greater than the ramie non fiber group (P0.05), and the 24h muscle PH was the opposite to the 45min, and the ramie did not go to the fiber. The group of the group was significantly greater than the ramie fiber group (P0.05). The muscle red degree a* and the Yellow degree b* in the two time point were significantly greater than the ramie non fiber group (P0.05), the brightness L* was opposite to the red a* and the Yellow degree b*, and the ramie non fiber group was significantly larger than the ramie fiber group (P0.05). The crude protein content and the partial amino acid content in the muscle were more than that of the ramie fiber group (P0.05). There was a significant difference in the content of some fatty acids (P0.05), and the fiber removal in Ramie was significantly higher than that in Ramie Fiber Group (P0.05).
【學(xué)位授予單位】:揚(yáng)州大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:S827.5

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 周帶娣;苧麻生物脫膠研究進(jìn)展[J];作物研究;2003年01期

2 李亞玲;任小松;楊燕;李蓉;;苧麻生物脫膠技術(shù)的應(yīng)用優(yōu)勢[J];四川農(nóng)業(yè)科技;2009年08期

3 李蓉;梁月;;四川達(dá)州市苧麻種植開發(fā)典型調(diào)研[J];國際沙棘研究與開發(fā);2011年02期

4 ;世界性苧麻熱方興未艾[J];中國水土保持;1986年09期

5 嚴(yán)文淦;;近年苧麻品質(zhì)下降原因[J];農(nóng)業(yè)科技通訊;1988年03期

6 唐守偉;苧麻產(chǎn)銷形勢分析及發(fā)展策略[J];作物研究;1992年S2期

7 王春桃,黎覲臣,,李宗道;我國苧麻品種合理布局的研究[J];湖南農(nóng)業(yè)大學(xué)學(xué)報;1996年02期

8 方至;湖南山區(qū)發(fā)展苧麻的氣候生態(tài)環(huán)境優(yōu)勢[J];山地研究;1997年03期

9 ;種苧麻價高莫猛趕 價低莫急砍[J];農(nóng)村發(fā)展論叢;1999年05期

10 袁晉煈,黃建英;分宜苧麻品質(zhì)較高的氣候優(yōu)勢分析[J];江西氣象科技;2004年03期

相關(guān)會議論文 前10條

1 簡海燕;楊秋蓮;黃建英;;“贛苧三號”苧麻種植的氣候條件分析[A];第27屆中國氣象學(xué)會年會氣候資源應(yīng)用研究分會場論文集[C];2010年

2 王亮;周精華;蔣杰;邢虎成;白莎莎;李杰;;赤霉素和乙烯利對雌性苧麻和雌雄同株異花苧麻的影響[A];中國作物學(xué)會50周年慶祝會暨2011年學(xué)術(shù)年會論文集[C];2011年

3 喻春明;張彥紅;朱愛國;王延周;朱四元;唐守偉;熊和平;;苧麻種質(zhì)資源纖維結(jié)晶度變異及其主要品質(zhì)性狀的關(guān)聯(lián)性研究[A];中國作物學(xué)會50周年慶祝會暨2011年學(xué)術(shù)年會論文集[C];2011年

4 佘瑋;c燦瓿

本文編號:2128713


資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/yixuelunwen/dongwuyixue/2128713.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶ea291***提供,本站僅收錄摘要或目錄,作者需要刪除請E-mail郵箱bigeng88@qq.com