茶多酚和新型甜味劑共同添加在斷奶仔豬飼糧中的應(yīng)用效果研究
發(fā)布時(shí)間：2018-11-02 18:13
【摘要】：茶多酚(TeaPolyphenols,TP)為茶的提取物,可添加于動(dòng)物飼料,有著抗氧化及其他有利于動(dòng)物健康生產(chǎn)的功效,但其味微苦,可能會(huì)在一定程度影響斷奶仔豬的采食。新型甜味劑(Sweeteners,SW)含有包括甘草提取物及紐甜在內(nèi)的甜味物質(zhì),添加于仔豬料可以提高其偏食性,與茶多酚同時(shí)添加可能會(huì)減輕其苦味,增加采食量,改善生產(chǎn)性能。因此,本試驗(yàn)旨在研究斷奶仔豬飼糧中添加TP和SW及二者共同添加的應(yīng)用效果,為二者在斷奶仔豬上的應(yīng)用提供科學(xué)依據(jù)。本試驗(yàn)旨在研究TP和SW對斷奶仔豬生長性能、血液生化指標(biāo)、養(yǎng)分消化率和腸道微生物菌群的影響。選取體況良好、體重相近的50日齡斷奶仔豬240頭,隨機(jī)分為4個(gè)處理組,每個(gè)處理組6個(gè)重復(fù),每個(gè)重復(fù)10頭仔豬。分別飼喂基礎(chǔ)飼糧(對照組)、基礎(chǔ)飼糧+0.4 g/kg茶多酚、基礎(chǔ)飼糧+0.2 g/kg甜味劑、基礎(chǔ)飼糧+0.4 g/kg茶多酚+0.2 g/kg甜味劑,試驗(yàn)期24d。結(jié)果顯示:(1)共同添加TP和SW對斷奶仔豬ADG、ADFI和F/G的影響差異不顯著(P0.05),但ADG和ADFI均有下降趨勢,F/G幾乎無變化;單獨(dú)添加SW可以提高斷奶仔豬的ADFI。(2)共同添加TP和SW可以降低斷奶仔豬的AST、ALT、BUN和GLU,但影響不顯著(P0.05);單獨(dú)添加TP可以顯著降低斷奶仔豬的GLU水平(P0.05);單獨(dú)添加TP可以提高仔豬血清中的TP、IgA和SOD含量,并降低MDA水平;共同添加TP和SW可以提高T-GSH和CAT含量,但差異不顯著(P0.05)。(3)共同添加TP和SW時(shí),棕櫚酸和亞麻油酸水平差異顯著(P0.05),花生酸和花生一烯酸差異極顯著(P0.01);單獨(dú)添加TP時(shí),花生一烯酸含量差異顯著(P0.05)。(4)共同添加TP和SW時(shí),仔豬的EE和DM消化率差異極顯著(P0.01);單獨(dú)添加TP時(shí),仔豬的DM消化率差異極顯著(P0.01)。(5)共同添加TP和SW時(shí),仔豬腸道的大腸桿菌含量差異顯著(P0.05);單獨(dú)添加TP時(shí),仔豬腸道的大腸桿菌、乳酸桿菌和雙歧桿菌含量差異極顯著(P0.01)。綜上表明:飼糧中添加TP和SW可以提高斷奶仔豬的免疫力和抗氧化能力,上調(diào)體內(nèi)的不飽和脂肪酸含量,同時(shí)增加各種養(yǎng)分的消化率,并改善仔豬腸道主要微生物環(huán)境。
[Abstract]:Tea polyphenol (TeaPolyphenols,TP) is the extract of tea, which can be added to animal feed and has antioxidant and other beneficial effects on animal health production, but its taste is slightly bitter, which may affect the feeding of weaning piglets to some extent. The new sweetener (Sweeteners,SW) contains sweet substances including liquorice extract and new sweet. Adding it to piglets can improve their partial eating ability. The addition of tea polyphenols at the same time may lighten their bitter taste, increase their feed intake and improve their production performance. Therefore, the purpose of this experiment was to study the effect of adding TP and SW to weaning piglets and to provide scientific basis for their application in weaning piglets. The effects of TP and SW on growth performance, blood biochemical index, nutrient digestibility and intestinal microflora of weaned piglets were studied. 240 weaned piglets with similar body weight and good body weight were randomly divided into 4 treatment groups with 6 replicates in each treatment group and 10 piglets per replica. Basal diet (control group), basal diet 0.4 g/kg tea polyphenols, basic diet 0.2 g/kg sweeteners, basic diet 0.4 g/kg tea polyphenols 0.2 g/kg sweeteners for 24 days. The results showed that: (1) the effect of TP and SW on ADG,ADFI and F / G in weaning piglets was not significant (P0.05), but ADG and ADFI had a downward trend, and FRG had no change. The addition of SW alone could increase the ADFI. (2) of weaned piglets, and add TP and SW together could reduce the AST,ALT,BUN and GLU, of weaned piglets, but the effect was not significant (P0.05). The level of GLU in weaned piglets was significantly decreased by adding TP alone (P0.05), and the content of TP,IgA and SOD in serum and MDA level in serum of piglets were increased by adding TP alone. The content of T-GSH and CAT was increased by adding TP and SW together, but there was no significant difference (P0.05). (3). When TP and SW were added together, palmitic acid and linolenic acid levels were significantly different (P0.05). The difference between arachidonic acid and arachidonic acid was significant (P0.01). When TP was added alone, the content of arachidonic acid was significantly different (P0.05). (4). When TP and SW were added together, the digestibility of EE and DM in piglets was significantly different (P0.01). When TP was added alone, the DM digestibility of piglets was significantly different (P0.01). (5). When TP and SW were added together, the intestinal Escherichia coli content of piglets was significantly different (P0.05). The contents of Escherichia coli, Lactobacillus and Bifidobacterium in intestinal tract of piglets were significantly different with TP alone (P0.01). The results showed that the supplementation of TP and SW in diet could improve the immunity and antioxidant ability of weaned piglets, increase the content of unsaturated fatty acids, increase the digestibility of all kinds of nutrients, and improve the main microorganism environment of intestinal tract of piglets.
【學(xué)位授予單位】：沈陽農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S828.5
，
本文編號：2306569
[Abstract]:Tea polyphenol (TeaPolyphenols,TP) is the extract of tea, which can be added to animal feed and has antioxidant and other beneficial effects on animal health production, but its taste is slightly bitter, which may affect the feeding of weaning piglets to some extent. The new sweetener (Sweeteners,SW) contains sweet substances including liquorice extract and new sweet. Adding it to piglets can improve their partial eating ability. The addition of tea polyphenols at the same time may lighten their bitter taste, increase their feed intake and improve their production performance. Therefore, the purpose of this experiment was to study the effect of adding TP and SW to weaning piglets and to provide scientific basis for their application in weaning piglets. The effects of TP and SW on growth performance, blood biochemical index, nutrient digestibility and intestinal microflora of weaned piglets were studied. 240 weaned piglets with similar body weight and good body weight were randomly divided into 4 treatment groups with 6 replicates in each treatment group and 10 piglets per replica. Basal diet (control group), basal diet 0.4 g/kg tea polyphenols, basic diet 0.2 g/kg sweeteners, basic diet 0.4 g/kg tea polyphenols 0.2 g/kg sweeteners for 24 days. The results showed that: (1) the effect of TP and SW on ADG,ADFI and F / G in weaning piglets was not significant (P0.05), but ADG and ADFI had a downward trend, and FRG had no change. The addition of SW alone could increase the ADFI. (2) of weaned piglets, and add TP and SW together could reduce the AST,ALT,BUN and GLU, of weaned piglets, but the effect was not significant (P0.05). The level of GLU in weaned piglets was significantly decreased by adding TP alone (P0.05), and the content of TP,IgA and SOD in serum and MDA level in serum of piglets were increased by adding TP alone. The content of T-GSH and CAT was increased by adding TP and SW together, but there was no significant difference (P0.05). (3). When TP and SW were added together, palmitic acid and linolenic acid levels were significantly different (P0.05). The difference between arachidonic acid and arachidonic acid was significant (P0.01). When TP was added alone, the content of arachidonic acid was significantly different (P0.05). (4). When TP and SW were added together, the digestibility of EE and DM in piglets was significantly different (P0.01). When TP was added alone, the DM digestibility of piglets was significantly different (P0.01). (5). When TP and SW were added together, the intestinal Escherichia coli content of piglets was significantly different (P0.05). The contents of Escherichia coli, Lactobacillus and Bifidobacterium in intestinal tract of piglets were significantly different with TP alone (P0.01). The results showed that the supplementation of TP and SW in diet could improve the immunity and antioxidant ability of weaned piglets, increase the content of unsaturated fatty acids, increase the digestibility of all kinds of nutrients, and improve the main microorganism environment of intestinal tract of piglets.
【學(xué)位授予單位】：沈陽農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S828.5
，
本文編號：2306569
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