不同玉米品种全株青贮品质及营养价值的比较分析

doi:10.16431/j.cnki.1671-7236.2018.11.009

摘要/Abstract

摘要：

试验旨在研究不同品种全株玉米青贮发酵品质和营养价值的差异，选取5个粮饲兼用型玉米品种，于1/2~3/4乳线期刈割，使用聚乙烯发酵袋（50 cm×80 cm）在实验室条件下（15~20℃）发酵60 d，开袋后进行感官评价，测定青贮发酵品质，风干样粉碎后用于常规化学成分及消化率的测定。结果显示：纪元128感官评分等级为中级，其余品种均为良好级。沃锋9的乳酸含量（6.05% DM）显著高于纪元128（5.13% DM）和郑单958（5.13% DM）（P<0.05），乙酸和丙酸含量则极显著低于潞玉36、郑单958和京科25（P<0.01）。5个品种全株玉米青贮V-score评分均>97.00分。京科25的粗蛋白质（CP）、沃锋9的粗脂肪（EE）、郑单958的可溶性碳水化合物（WSC）和纪元128的淀粉含量高于其他品种，分别达9.24% DM、3.11% DM、2.84% DM、30.33% DM。各品种相对饲喂价值（RFV）由高到低依次为：沃锋9（163.00） > 纪元128（160.93） > 郑单958（156.30） > 京科25（152.70） > 潞玉36（151.77）。郑单958和沃锋9的24 h中性洗涤纤维消化率（NDFD）（17.84% DM；18.28% DM）极显著低于京科25和纪元128（24.87% DM；22.97% DM）（P<0.01）。综上所述，沃锋9全株青贮的RFV最高，且其感官评价、乳酸含量、V-score评分、EE及WSC含量均较高，而氨态氮/总氮（NH₃-N/TN）、中性洗涤纤维（NDF）及酸性洗涤纤维（ADF）含量均较低，因此沃锋9为较为优异的粮饲兼用型青贮玉米品种。其次为纪元128，其RFV及48 h NDFD较高，而ADF及木质素（ADL）含量均最低。

关键词: 玉米品种; 全株玉米青贮; 青贮品质; 营养价值

Abstract:

This experiment was conducted to investigate the silage quality and nutritive value of whole-plant corn silage of different varieties.Five different varieties of corn were harvested at 1/2 to 3/4 milk line and silaged in plastic bags (50 cm×80 cm) for 60 d (15 to 20℃),then sensory evaluation and fermentation status were analyzed.Chemical and digestion analysis were carried out after the samples were air-dried.The results showed that the overall sensory scores for whole-plant corn silage were good except for Jiyuan 128 which was fair.Lactic acid concentration of Wofeng 9 (6.05%DM) was significantly higher than Jiyuan 128(5.13%DM) and Zhengdan 958 (5.13%DM)(P<0.05),while acetic acid and propionic acid concentrations were extremely significantly lower than Luyu 36,Zhengdan 958 and Jingke 25 (P<0.01).The V-scores were all above 97.00 of whole-plant corn silage.The contents of CP of Jingke 25,EE of Wofeng 9,WSC of Zhengdan 958 and starch of Jiyuan 128 was the highest among the five varieties of corn silage,which were 9.24%DM,3.11%DM,2.84%DM and 30.33%DM,respectively.The RFV of different varieties corn silage from high to low were:Wofeng 9(163.00) > Jiyuan 128(160.93) > Zhengdan 958 (156.30) > Jingke 25(152.70) > Luyu 36(151.77).The 24 h NDFD of Zhengdan 958 and Wofeng 9 (17.84%DM;18.28%DM) were extremely significantly lower than that of Jingke 25 and Jiyuan 128 (24.87%DM;22.97%DM) (P<0.01).In conclusion,the RFV of Wofeng 9 was the highest and its sensory evaluation,lactic acid concentration,V-score,EE and WSC contents were higher,while NH₃-N/TN,NDF and ADF contents were lower,therefore,Wofeng 9 performed better than others under this experimental condition.The second was Jiyuan 128 whose RFV and 48 h NDFD were higher,while ADF and ADL contents were the lowest.

Key words: corn variety; whole-plant corn silage; silage quality; nutritive value

中图分类号:

S816

刘月, 周振明, 王国艮, 吴浩, 孟庆翔, 杨军香, 罗峰, 孙守钧. 不同玉米品种全株青贮品质及营养价值的比较分析[J]. 《中国畜牧兽医》, 2018, 45(11): 3043-3050.

LIU Yue, ZHOU Zhenming, WANG Guogen, WU Hao, MENG Qingxiang, YANG Junxiang, LUO Feng, SUN Shoujun. Comparative Analysis of Silage Quality and Nutritive Value of Whole-plant Corn Silage with Different Varieties[J]. , 2018, 45(11): 3043-3050.

参考文献

[1] 贾存辉,钱文熙,吐尔逊阿依·赛买提,等.粗饲料营养价值指数及评定方法[J].草业科学,2017,34(2):415-427. JIA C H,QIAN W X,TURSVNAY·SAMAT,et al.Roughage nutritional value evaluation indices and research methods[J].Pratacultural Science,2017,34(2):415-427.(in Chinese)
[2] 张毕阳,赵桂琴,焦婷,等.饲粮中添加燕麦干草对绵羊体外发酵的影响[J].草业学报,2018,27(2):182-191. ZHANG B Y,ZHAO G Q,JIAO T,et al.Effects of adding oat hay to the diet on in vitro ruminal fermentation[J].Acta Prataculturae Sinica,2018,27(2):182-191.(in Chinese)
[3] GIANG N T,WANAPAT M,PHESATCHA K,et al.Level of Leucaena leucocephala silage feeding on intake,rumen fermentation,and nutrient digestibility in dairy steers[J].Tropical Animal Health & Production,2016,48(5):1-8.
[4] RABELO C H S,REZENDE A V D,RABELO F H S V,et al.Chemical composition,digestibility and aerobic stability of corn silages harvested at different maturity stages[J].Revista Caatinga,2015,28(2):107-116.
[5] KEADY T W J,HANRAHAN J P,MARLEY C L,et al.Production and utilization of ensiled forages by beef cattle,dairy cows,pregnant ewes and finishing lambs——A review[J].Agricultural and Food Science,2013,22(1):574-577.
[6] AKINS M S,SHAVER R D.Influence of corn silage hybrid type on lactation performance by Holstein dairy cows[J].Journal of Dairy Science,2014,97(12):7811-7820.
[7] 孟庆翔,杨军香.全株玉米青贮制作与质量评价[M].北京:中国农业科学技术出版社,2016. MENG Q X,YANG J X.Whole Corn Silage Production and Quality Evaluation[M].Beijing:China Agricultural Science and Technology Press,2016.(in Chinese)
[8] FERRARETTO L F,CRUMP P M,SHAVER R D.Effect of ensiling time and exogenous protease addition to whole-plant corn silage of various hybrids,maturities,and chop lengths on nitrogen fractions and ruminal in vitro starch digestibility[J].Journal of Dairy Science,2015,98(12):8869-8881.
[9] DUVNJAK M,KLJAK K,GRBESA D.Effect of hybrid,inoculant and storage time on whole plant nitrogen compounds and grain total zein content in maize silage[J].Journal of Animal & Feed Sciences,2016,25(2):174-178.
[10] OPSI F,FORTINA R,BORREARI G,et al.Influence of cultivar,sowing date and maturity at harvest on yield,digestibility,rumen fermentation kinetics and estimated feeding value of maize silage[J].Journal of Agricultural Science,2013,151(5):740-753.
[11] LOUCKA R,TYROLOVA Y,JANCIK F,et al.Variation for in vivo digestibility in two maize hybrid silages[J].Czech Journal of Animal Science,2018,63(1):17-23.
[12] BRODERICK G A,KANG J H.Automated simultaneous determination of ammonia and total amino acids in ruminal fluid and in vitro media[J].Journal of Dairy Science,1980,63(1):64-75.
[13] 和立文.全株玉米青贮品质评价及其对肉牛育肥性能和牛肉品质的影响[D].北京:中国农业大学,2017. HE L W.Quality evaluation of corn silage and its effect on the growth performance and beef quality of finishing cattle[D].Beijing:China Agricultural University,2017.(in Chinese)
[14] 闫艳红,李君临,郭旭生,等.多花黑麦草与大豆秸秆混合青贮发酵品质的研究[J].草业学报,2014,23(4):94-99. YAN Y H,LI J L,GUO X S,et al.A study on fermentation quality of Italian ryegrass and soybean straw mixed silage[J].Acta Prataculturae Sinica,2014,23(4):94-99.(in Chinese)
[15] PORTER M G,MURRAY R S.The volatility of components of grass silage on oven drying and the inter-relationship between dry-matter content estimated by different analytical methods[J].Grass & Forage Science,2010,56(4):405-411.
[16] AOAC INTERNATIONAL.Official methods of an analysis[S].2000.
[17] VAN SOEST P J,ROBERTSON J B,LEWIS B A.Methods for dietary fiber,neutral detergent fiber,and nonstarch polysaccharides in relation to animal nutrition[J].Journal of Dairy Science,1991,74(10):3583-3597.
[18] OWENS V N,ALBRECHT K A,MUCK R E,et al.Protein degradation and fermentation characteristics of red clover and alfalfa silage harvested with varying levels of total nonstructural carbohydrates[J].Crop Science,1999,39(6):1873-1880.
[19] 郭冬生.反刍动物日粮组合效应对瘤胃发酵和可利用粗蛋白的影响研究[D].北京:中国农业大学,2004. GUO D S.Study of diet associated effects on utilizable crude protein of feeds for ruminants and rumen fermentation in vitro[D].Beijing:China Agricultural University,2004.(in Chinese)
[20] 张丽英.饲料分析及饲料质量检测技术[M].北京:中国农业大学出版社,2016. ZHANG L Y.Feed Analysis and Quality Detection Technology[M].Beijing:China Agricultural University Press,2016.(in Chinese).
[21] ROHWEDER D A,BARNES R F,JORGENSEN N.Proposed hay grading standards based on laboratory analyses for evaluating quality[J].Journal of Animal Science,1983,47(3):747-759.
[22] 李德勇,孟庆翔,崔振亮,等.产气量法研究不同植物提取物对瘤胃体外发酵的影响[J].中国农业大学学报,2014,19(2):143-149. LI D Y,MENG Q X,CUI Z L,et al.Effects of different plant extracts on rumen fermentation in vitro by using gas production technique[J].Journal of China Agricultural University,2014,19(2):143-149.(in Chinese)
[23] 冯长松,李锦华,王二耀,等.不同玉米品种去穗秸秆青贮效果比较[J].中国草食动物科学,2015,35(3):29-32. FENG C S,LI J H,WANG E Y,et al.Comparison of different silage corn stalk silage effects[J].Chinese Journal of Herbivory Science,2015,35(3):29-32.(in Chinese)
[24] SANTOS A O,AVILA C L,SCHWAN R F.Selection of tropical lactic acid bacteria for enhancing the quality of maize silage[J].Journal of Dairy Science,2013,96(12):7777-7789.
[25] 余汝华,莫放,赵丽华,等.不同玉米品种青贮饲料营养成分比较分析[J].中国农学通报,2007,23(8):17-20. YU R H,MO F,ZHAO L H,et al.The comparison of the chemical characteristics and nutritive value of green corn stalk silage with different variety[J].Chinese Agricultural Science Bulletin,2007,23(8):17-20.(in Chinese)
[26] HASHEMZADEHCIGARI F,KHORVASH M,GHORBANI G R,et al.Interactive effects of molasses by homofermentative and heterofermentative inoculants on fermentation quality,nitrogen fractionation,nutritive value and aerobic stability of wilted alfalfa (Medicago sativa L.) silage[J].Journal of Animal Physiology and Animal Nutrition,2014,98(2):290-299.
[27] 许庆方,张翔,董宽虎,等.不同品种玉米植株3种调制方法效果比较[J].草地学报,2010,18(1):67-72. XU Q F,ZHANG X,DONG K H,et al.Study on three processing methods of different corn varieties[J].Acta Agrestia Sinica,2010,18(1):67-72.(in Chinese)
[28] 邱小燕,原现军,郭刚,等.添加糖蜜和乙酸对西藏发酵全混合日粮青贮发酵品质及有氧稳定性影响[J].草业学报,2014,23(6):111-118. QIU X Y,YUAN X J,GUO G,et al.Effects of molasses and acetic acid on fermentation and aerobic stability of total mixed ration silage in Tibet[J].Acta Prataculturae Sinica,2014,23(6):111-118.(in Chinese)
[29] ZHOU Y,DROUIN P,LAFRENIERE C.Effect of temperature (5-25℃) on epiphytic lactic acid bacteria populations and fermentation of whole-plant corn silage[J].Journal of Applied Microbiology,2016,121(3):657-657.
[30] THOMAS E D,MANDEBVU P,BALLARD C S,et al.Comparison of corn silage hybrids for yield,nutrient composition,in vitro digestibility,and milk yield by dairy cows[J].Journal of Dairy Science,2001,84(10):2217-2226.
[31] KHAN N A,YU P,ALI M,et al.Nutritive value of maize silage in relation to dairy cow performance and milk quality[J].Journal of the Science of Food & Agriculture,2015,95(2):238-252.
[32] CHERNEY D J R,CHERNEY J H,COX W J.Fermentation characteristics of corn forage ensiled in mini silos[J].Journal of Animal Science,2004,87:4238-4246.
[33] ANDRAE J G,HUNT C W,PRITCHARD G T,et al.Effect of hybrid,maturity,and mechanical processing of corn silage on intake and digestibility by beef cattle[J].Journal of Animal Science,2001,79(9):2268-2275.
[34] BERGEN W G,BYREM T M,GRANT A L.Ensiling characteristics of whole-crop small grains harvested at milk and dough stages.[J].Journal of Animal Science,1991,69(4):1766-1774.
[35] 苗树君,杨柳,曲永利,等.不同收获期青贮玉米贮前和贮后营养含量变化研究[J].草食家畜,2005,29(3):40-42. MIAO S J,YANG L,QU Y L,et al.The research of nutritive contents change between whole plant corn and corn silage harvested at different growth period[J].Grass-Feeding Livestock,2005,29(3):40-42.(in Chinese)
[36] FERRARETTO L F,SHAVER R D.Effects of whole-plant corn silage hybrid type on intake,digestion,ruminal fermentation,and lactation performance by dairy cows through a meta-analysis[J].Journal of Dairy Science,2015,98(4):2662-2675.
[37] WEISS W P,WYATT D J.Effect of oil content and kernel processing of corn silage on digestibility and milk production by dairy cows[J].Journal Dairy Science,2000,83:351-358.