Effect of Soaking or Crushing of Shelled Corn on Digestion of Sheep

doi:10.6048/j.issn.1001-4330.2021.11.020

Abstract

Abstract:

【Objective】 The purpose of this experiment is to compare the effects of corn kernels soaked and crushed in two different processing methods on voluntary feed intake (VFI) and digestion of sheep. It provides a reference for improving the digestion and feeding of corn pellets by sheep.【Method】 Six healthy small-tailed Han sheep rams aged 3 years old and weighing (55.0±3.8) kg were randomly divided into 3 groups with 2 in each group. According to the 3×3 Latin square design, each group of sheep was fed diets with the same composition (70% mixed concentrate + 30% crushed corn stalks, including 55% corn) but with different corn treatments during the three experimental periods. 1, 2 and 3), that is, whole corn as the control group (Diet 1), crushed corn (Diet 2), and whole corn soaked for 60 to 72 hours (Diet 3).【Result】 The VFI of the three diets were (1,566.9±121.6), (1,579.6±98.5)and (1,466.1±101.2) g/sheep/day. Diet 3 was significantly lower than diets 1 and 2 by 6.4% (P<0.05) and 7.2% (P<0.05). The AD of DM was (57.92±0.63), (62.63±0.53), and (66.39±0.75%) and diet 3 was significantly increased by 14.6% (P<0.05) and 6.0% (P<0.05) compared with diets 1 and 2. The DM digestibility was (907.5±59.4), (989.3±92.5) and (953.4±78.5) g/sheep/day. Diet 3 was significantly increased by 5.0% (P<0.05) and decreased by 3.6% (P<0.05) compared with diets 1 and 2. However, diet 3 and diet 2 had no significant difference in crude fiber digestibility and digestibility compared with diet 1 (P> 0.05).【Conclusion】 Feeding sheep with soaked corn in the diet will reduce the sheep's VFI, but at the same time will increase the AD of the sheep, indicating that the soaked corn feeding is more conducive to promoting the digestion of the sheep.

Key words: sheep; corn; soaking; crushing; digestion

摘要：

【目的】比较浸泡和粉碎2种不同加工方式的玉米粒对绵羊的自由采食和消化的影响。为提高绵羊对玉米颗粒的消化和饲养提供参考依据。【方法】选取6只3岁、体重为(55.0±3.8)kg的健康小尾寒羊公羊,随机分为3组,每组2只。按照3×3拉丁方设计,在3个试验期给各组绵羊分别饲喂组成相同(70%混合精料+30%粉碎玉米秸秆,其中玉米含量55%)、但玉米处理不同的日粮(1、2和3),即整粒玉米为对照组(日粮1)、粉碎玉米(日粮2)、浸泡60~72 h的整粒玉米(日粮3)。【结果】3种日粮的干物质自由采食量分别为(1 566.9±121.6)、(1 579.6±98.5)和(1 466.1±101.2)g/羊/d,日粮3比日粮1和2分别显著降低6.4%(P<0.05)和7.2%(P<0.05)。干物质表观消化率分别为(57.92±0.63)、(62.63±0.53)和(66.39±0.75)%,日粮3比日粮1和2分别显著增加14.6%(P<0.05)和6.0%(P<0.05)。干物质消化量分别为(907.5±59.4)、(989.3±92.5)和(953.4±78.5)g/羊/d,日粮3比日粮1和2分别显著增加5.0%(P<0.05)和减少3.6%(P<0.05)。但日粮3和日粮2比日粮1粗纤维消化率和消化量均无显著差异(P > 0.05)。【结论】日粮中使用浸泡玉米饲喂绵羊会降低绵羊的自由采食量,但同时会提高绵羊的表观消化率,表明浸泡玉米饲喂更有利于促进绵羊的消化。

关键词: 绵羊, 玉米, 浸泡, 粉碎, 消化

CLC Number:

S815.4

BA Burigedan, LUO Qiujiang, XIE Wenlong, PAN Rong. Effect of Soaking or Crushing of Shelled Corn on Digestion of Sheep[J]. Xinjiang Agricultural Sciences, 2021, 58(11): 2133-2138.

巴·布日格旦, 雒秋江, 谢文龙, 潘榕. 玉米浸泡和粉碎对绵羊日粮消化的影响[J]. 新疆农业科学, 2021, 58(11): 2133-2138.

Figures/Tables 4

References 14

[1]	王洪亮. 加工方式对玉米饲喂绵羊营养价值的影响[D]. 东北农业大学. 2006.
	Wang Hongliang. The effect of processing methods on the nutritional value of corn fed to sheep[D]. Northeast Agricultural University. 2006.
[2]	蒋德云. 新疆玉米种质的蛋白质、脂肪及淀粉含量[J]. 新疆农业科学, 1991, (6):249-250.
	Jiang Deyun. Protein, Fat and Starch Content Analysis of Xinjiang Maize Cultivars[J]. Xinjiang Agricultural Sciences, 1991, (6):249-250.
[3]	孙峰成, 赵瑞霞, 冯勇, 等. 内蒙古自治区玉米杂交种的营养品质及相互关系分析[J]. 内蒙古农业科技, 2010,(1):38~40.
	Sun Fengcheng, Zhao Ruixia, Feng Yong, et al. Analysis on Nutrition Quality and Relationships of Dif-ferent Maize Hybrids in Inner Mongol[J]. Inner Mongolia Agricultural Science and Technology, 2010, (1):38~40.
[4]	姚军虎, 薛桥. 牛羊饲喂整粒谷实对消化利用及生产性能的影响[J]. 内蒙古畜牧科学, 1994,(1):25~28.
	Yao Junhu, Xue Qiao. The effect of feeding whole grains of cattle and sheep on digestion, utilization and production performance[J]. Inner Mongolian Journal of Animal Sciences and Production. 1994,(1):25~28.
[5]	Wondra K J. 1995. Effects of mill type and particle size uniformity on growth performance. nutrient digestibility. and stomach mor phology in finishing pigs.[J]. J.Ainm.Sci. 73:2564~2573. doi: 10.1016/0168-1605(94)00083-I. DOI
[6]	杨胜. 饲料分析及饲料质量检测技术[M].(第2版). 北京: 中国农业出版社, 1993.
	Yang Sheng. Feed analysis and feed quality inspection technology[M]. (Second Edition). Beijing: China Agriculture Press. 1993.
[7]	冯仰廉. 2004.反刍动物营养学[M].北京.科学出版社
	Feng Yanglian. Ruminant Nutrition[M]. Beijing. Science Press. 2004.
[8]	郝艳霜, 姚军虎. 玉米粒度对泌乳羊生产性能及养分消化的影响[J]. 西北农业学报, 2005, 14(3):11~14.
	Hao Yanshuang, Yao Junhu. Effects of Different Particle Sizes of Corn on Productive Performance and Nutrient Digestibilities of Lactating Goats[J]. Acta Agriculturae Boreali occidentalis Sinica. 2005. 14(3):11~14. (in Chinese)
[9]	Rémond D, JI. Cabrera-Estrada, M.Champion , et al. Effect of corn particle size on site and extent of starch digestion in lactating dairy cows.[J] Dairy Sci. 2004 87(5):1389-99. doi.org/10.3168/jds.S0022-0302(04)73288-9 DOI URL
[10]	Fredin S.M, L.F. Ferraretto, M.S. Akins, et al. Effects of corn-based diet starch content and corn particle size on lactation performance, digestibility, and bacterial protein flow in dairy cows[J]. Dairy Sci. 2015, 98(1):541-553 doi.org/10.3168/jds.2014-8502 DOI URL
[11]	Brossillon, V., S. F. Reis, D.C. Moura, et al. Production, milk and plasma fatty acid profile, and nutrient utilization in Jersey cows fed flaxseed oil and corn grain with different particle size 2018, J. Dairy Sci. 101(3):2127-2143. doi.org/10.3168/jds.2017-13478 DOI
[12]	Do Hyung Kim, Seong Ho Choi, Sung Kwon Park, et al. Effect of corn grain particle size on ruminal fermentation and blood metabolites of Holstein steers fed total mixed ration Asian-Australas J Anim Sci 2018, 31(1):80-85. doi.org/10.5713/ajas.17.0069 DOI URL
[13]	Castagnino DS, Seck M, Longuski RA, et al. Particle size and endosperm type of dry corn grain altered duodenal flow of B vitamins in lactating dairy cows. J Dairy Sci. 101(11):9841-9846. doi: 10.3168/jds.2018-15131. DOI URL
[14]	Gallo A., G. Giuberti, and F. Masoero Gas production and starch degradability of corn and barley meals differing in mean particle size[J]. Dairy Sci. 2016, 99(6):4347-4359. doi.org/10.3168/jds.2015-10779 DOI URL

饲料原料 Ingredients	%	项目 Items	%
玉米秸秆 Cornstalk	30.10	有机物	88.55
玉米 Corn	54.60	粗蛋白	12.69
棉仁粕 Cottonseed meal	10.90	粗纤维	25.32
菜籽饼 Rapeseed meal	2.90
营养添加剂 Nutritive additive	1.50
总计 In total	100.00

饲料原料 Ingredients	%	项目 Items	%
玉米秸秆 Cornstalk	30.10	有机物	88.55
玉米 Corn	54.60	粗蛋白	12.69
棉仁粕 Cottonseed meal	10.90	粗纤维	25.32
菜籽饼 Rapeseed meal	2.90
营养添加剂 Nutritive additive	1.50
总计 In total	100.00

处理Treatments:	整粒Shelled (日粮1)	粉碎Ground (日粮2)	整粒浸泡Shelled-soaked (日粮3)
干物质Dry matter	1 566.9±121.6^a	1 579.6±98.5^a	1 466.1±101.2^b
有机物Organic matter	1 387.5±79.0^a	1 398.70±95.4^a	1 298.26±89.3^b
混合精料Mixed concentrate	471.8±18.2^a	475.61±18.5^a	441.56±11.2^b
粉碎玉米秸秆Cornstalk	1 095.1±65.3	1 103.96±49.4	1 024.58±56.4

处理Treatments:	整粒Shelled (日粮1)	粉碎Ground (日粮2)	整粒浸泡Shelled-soaked (日粮3)
干物质Dry matter	1 566.9±121.6^a	1 579.6±98.5^a	1 466.1±101.2^b
有机物Organic matter	1 387.5±79.0^a	1 398.70±95.4^a	1 298.26±89.3^b
混合精料Mixed concentrate	471.8±18.2^a	475.61±18.5^a	441.56±11.2^b
粉碎玉米秸秆Cornstalk	1 095.1±65.3	1 103.96±49.4	1 024.58±56.4

处理Treatments:	整粒Shelled (日粮1)	粉碎Ground (日粮2)	整粒浸泡Shelled-soaked (日粮3)
干物质Dry matter	57.92±0.63^a	62.63±0.53^b	66.39±0.75^c
有机物Organic matter	56.57±1.12^a	61.18±0.82^b	65.55±0.50^c
粗蛋白Crude protein	49.41±0.33^a	52.92±1.14^b	58.12±0.76^c
粗纤维Crude fiber	21.56±0.24	22.49±0.45	22.31±0.38