本文選題：γ-氨基丁酸 + 哺乳期伊犁馬駒　； 參考：《新疆農(nóng)業(yè)大學》2015年碩士論文

【摘要】：γ-氨基丁酸(GABA)作為一種氨基酸類飼料添加劑,被廣泛應用于動物日糧中,具有增強動物采食能力、生長性能及免疫力等生物學效應,但是國內(nèi)外關于GABA在哺乳期馬駒中的應用鮮有報道,因此本試驗探究補喂不同劑量水平GABA對哺乳期伊犁馬馬駒生長性能及血液相關指標的影響,為GABA在哺乳期馬駒生長發(fā)育中的應用提供參考依據(jù)。試驗選取年齡2~3月齡體重相近的哺乳期伊犁馬駒20匹進行試驗。按體重相近、公母對等原則分為4組,每組5匹,分別為對照組、試驗Ⅰ組、試驗Ⅱ組和試驗Ⅲ組。對照組只補喂基礎日糧,試驗Ⅰ組補喂基礎日糧和40 mg/d/匹GABA,試驗Ⅱ組補喂基礎日糧和80 mg/d/匹GABA,試驗Ⅲ組補喂基礎日糧和120 mg/d/匹GABA。分別在試驗第0 d、30 d、60 d和90 d時下午18:00、18:30和20:00進行駒頸靜脈血液采集、體尺測量及稱重。結(jié)果顯示:試驗90 d后試驗Ⅱ組和試驗Ⅲ馬駒平均日增重相比對照組分別提高18.07%(P0.05)和6.02%(P0.05),試驗30 d后試驗Ⅰ、Ⅱ、Ⅲ組馬駒日增體高相比對照組分別提高11.76%(P0.05)、46.67%(P0.05)和43.33%(P0.05),試驗90 d后試驗Ⅰ、Ⅱ、Ⅲ組馬駒日增體高相比對照組分別提高25%(P0.01)、25%(P0.01)和35%(P0.01)。血液指標方面:在試驗第30 d時試驗Ⅰ、Ⅱ、Ⅲ組馬駒血漿生長激素水平分別高于對照組4.35%(P0.05)、10.72%(P0.05)、10.43%(P0.05),血漿白蛋白水平高于對照組2.79%(P0.05)、4.16%(P0.01)、1.07%(P0.05);在試驗第90 d時,試驗Ⅱ組馬駒血漿神經(jīng)肽Y水平高于對照組38.03%(P0.01),血漿總蛋白水平高于對照組4.58%(P0.05)。補喂后發(fā)現(xiàn)從試驗第0 d到第90 d試驗Ⅰ、Ⅱ、Ⅲ組馬駒血漿GABA、IgA和IgG水平均呈現(xiàn)出上升趨勢,但血漿胃泌素、生長抑素和尿素氮含量無顯著變化。本試驗結(jié)果表明:補喂GABA可提高哺乳期馬駒生長性能、免疫性能和抵抗力,且綜合發(fā)現(xiàn)以80 mg/d GABA組效果最佳。此外,GABA可能主要通過神經(jīng)肽Y、生長激素的調(diào)節(jié)對哺乳期馬駒生長發(fā)育進行調(diào)控。
[Abstract]:緯 -aminobutyric acid (GABA), as an amino acid feed additive, is widely used in animal diets and has biological effects such as enhancing animal feeding ability, growth performance and immunity. However, there are few reports on the application of GABA in lactation pony, so the effect of supplementation with different doses of GABA on growth performance and blood related index of Yili pony during lactation was investigated. To provide a reference for the application of GABA in the growth and development of foal during lactation. A total of 20 Yili ponies of the same age and 3 months of age were selected to carry out the experiment. According to the principle of equal weight, male and female were divided into 4 groups: control group, trial group 鈪，

本文編號：2065059