本文選題：張雜谷 + 加工調(diào)制技術(shù)�。� 參考：《河北北方學(xué)院》2017年碩士論文

【摘要】：本研究就“張雜谷”飼草開展了谷草氨化、全株谷子青貯和收獲籽實后谷秸黃貯三種加工調(diào)制技術(shù)探究,通過營養(yǎng)成分含量變化和體外產(chǎn)氣法評定其對“張雜谷”飼草營養(yǎng)價值的影響,以確立“張雜谷”飼草適宜的加工調(diào)制技術(shù)。研究分三個試驗進行:(1)不同尿素水平(占秸稈重的3%、4%、5%和6%)和水用量(20%、30%、40%和50%)對氨化谷草的養(yǎng)分含量和體外培養(yǎng)發(fā)酵產(chǎn)氣規(guī)律的影響。結(jié)果表明:5%和6%尿素氨化谷草中的CP含量極顯著高于3%和4%尿素氨化谷草(P0.01)。隨尿素用量的增加,氨化谷草中的NDF含量降低。水用量對氨化谷草中CP含量及結(jié)構(gòu)性纖維成分含量均未產(chǎn)生顯著影響(P0.05)。隨著尿素添加水平的升高,氨化谷草的營養(yǎng)物質(zhì)降解率和體外發(fā)酵指標(biāo)均有不同程度提高。綜合評定,氨化谷草的適宜尿素用量為5%,水用量為50%。(2)兩種處理形式(處理A:在全株谷子青貯中添加2%、4%和6%的糖蜜;處理B:在處理A的基礎(chǔ)上再添加1.5‰的菌劑)對全株谷子青貯的養(yǎng)分含量和體外培養(yǎng)發(fā)酵產(chǎn)氣規(guī)律的影響,結(jié)果表明:處理A中4%糖蜜全株谷子青貯的CP含量高于2%和6%糖蜜全株谷子青貯,而NDF含量低于2%和6%糖蜜全株谷子青貯;處理B與處理A結(jié)果相似。兩種處理方式均能不同程度的提高營養(yǎng)物質(zhì)降解率和體外發(fā)酵指標(biāo)。綜合評價,全株谷子青貯時添加4%糖蜜為宜。(3)四種處理形式(處理A:添加收獲籽實后谷秸鮮重1‰、2‰、3‰的菌劑;處理B:添加谷秸鮮重2%、3%、4%的尿素及2‰的菌劑;處理C:添加谷秸鮮重0.5%、1%、2%的玉米面;處理D:在處理C的基礎(chǔ)上分別再添加2%尿素+2‰菌劑)對谷草黃貯的養(yǎng)分含量和體外培養(yǎng)發(fā)酵產(chǎn)氣規(guī)律的影響,結(jié)果表明:如以CP和NDF含量評價谷草品質(zhì),處理A效果最好。處理A和處理B均提高了CPD,處理B極顯著提高了黃貯谷草的NDFD(P0.01)。綜合分析,谷草黃貯的適宜方式為處理A,以添加1‰菌劑效果最佳。本研究結(jié)果表明,“張雜谷”谷草氨化的適宜尿素用量為5%,水用量為50%;“張雜谷”全株青貯以添加4%的糖蜜為宜;“張雜谷”谷草黃貯以添加1‰菌劑效果最佳。確立了“張雜谷”飼草的適宜氨化、青貯和黃貯加工調(diào)制技術(shù)。
[Abstract]:In this study, three kinds of processing and modulation techniques, including ammoniation of cereal grass, silage of whole plant millet and yellow silage of grain straw after harvest of seed, were carried out in the forage of "Zhangzagu".The nutritional value of "Zhangzagu" forage was evaluated by the change of nutrient content and the method of gas production in vitro, in order to establish the suitable processing technology of "Zhangzagu" forage grass.The effects of different urea levels (3% and 6% of straw weight) and water dosage of 20% and 30% and 50% on the nutrient content of ammoniated cereal grass and the rule of fermentation gas production in vitro were studied in three experiments.The results showed that the content of CP in the ammoniated cereal grass of 5% and 6% urea was significantly higher than that of 3% and 4% urea ammoniated cereal grass (P0.01).The content of NDF in ammoniated cereal grass decreased with the increase of urea dosage.The amount of water had no significant effect on the content of CP and the content of structural fiber in ammoniated cereal grass.With the increase of urea addition level, the degradation rate of nutrients and the in vitro fermentation index of ammoniated cereal grasses increased in varying degrees.According to the comprehensive evaluation, the appropriate amount of urea and water for ammoniated cereal grass were 5 and 50, respectively) (treatment A: 2% and 6% molasses were added to the whole millet silage;The effect of treatment B: adding 1.5 鈥，

本文編號：1765620