Effects of Pelleted Diets with Different Physically Effective Neutral Detergent Fiber Levels on Nutrient Apparent Digestibility of Goats

YANG Li, GAO Lipeng, BAI Yunfeng, ZHANG Kai, MENG Meijuan, SONG Qian

doi:10.3969/j.issn.1006-267x.2017.08.045

2017 , Vol. 29 >Issue 8: 2996 - 3003

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.08.045

Molecular Nutrition

Effects of Pelleted Diets with Different Physically Effective Neutral Detergent Fiber Levels on Nutrient Apparent Digestibility of Goats

Expand

Liuhe Animal Science Base, Jiangsu Province Academy of Agricultural Sciences, Nanjing 210014, China

Received date: 2017-01-13

Online published: 2017-08-02

Fold

Abstract

This study aimed to investigate the effects of pelleted diets with different physically effective neutral detergent fiber (peNDF) levels on nutrient apparent digestibility of goats. Four male hybrid goats (Boer goats×Xuhuai goats)with the body weight about 25 kg were selected, and the 4 goats were respectively fed with 4 different diets according to the 4×4 Latin square design of experiment. For the 4 diets, diet A was a powder diet with the peNDF level was 22.75%, diet B was a pelleted diet with the peNDF level was 22.75%, diet C was a powder diet with the peNDF level was 31.76%, and diet D was a pelleted diet with the peNDF level was 31.76%. The 4 diets had the same or similar neutral detergent fiber (NDF) content, crude protein (CP) content and gross energy (GE), etc. The test was divided into 4 periods, and each period had 15 days with the pilot test period of 10 days and formal experiment period of 5 days. The results showed as follows: 1) under the low peNDF level, compared with the diet A, the diet B significantly increased the apparent digestibility of acid detergent fiber (ADF), CP, dry matter (DM), organic matter (OM), calcium (Ca) and phosphorus (P), and nitrogen retention, nitrogen retention rate and nitrogen biological value (P<0.05). 2) Under the high peNDF level, compared with the diet C, the diet D significantly increased the apparent digestibility of NDF, ADF, CP, DM, OM, GE, Ca and GE, and nitrogen retention rate (P<0.05). 3) Under the same diet form, compared with the high peNDF level diets (diets C and D), in addition to the calcium apparent digestibility had no significant increase (P>0.05), the rest of the apparent digestibility of nutrients in the low peNDF diets (diets A and B) were significantly increased (P<0.05). The results indicate that whether under high or low peNDF level, diets with pelleting treatment both can improve the nutrient apparent digestibility of goats.

Key words： peNDF; pelleted; goats; apparent digestibility

Cite this article

YANG Li, GAO Lipeng, BAI Yunfeng, ZHANG Kai, MENG Meijuan, SONG Qian . Effects of Pelleted Diets with Different Physically Effective Neutral Detergent Fiber Levels on Nutrient Apparent Digestibility of Goats[J]. Chinese Journal of Animal Nutrition, 2017 , 29(8) : 2996 -3003 . DOI: 10.3969/j.issn.1006-267x.2017.08.045

References

[1] ØSTERGAARD S,GRÖHN Y T.Concentrate feeding,dry-matter intake, and metabolic disorders in Danish dairy cows[J].Livestock Production Science,2000,65(1/2):107-118.

[2] OWEN J B.Complete-diet feeding of dairy cows[M]//HARESIGN W,COLE D J A.Recent developments in ruminant nutrition.Amsterdam:Elsevier,1981:312-324.

[3] 高健,丁洛阳,陈连民,等.颗粒饲料对不同品种生长期牛育肥效果的比较研究[J].家畜生态学报,2013,34(5):71-74.

[4] HOLTER J B, JR W E U, HAYES H H, et al. Utilization of diet components fed blended or separately to lactating cows[J]. Journal of Dairy Science, 1977,60(8):1288-1293.

[5] REDDY K J,REDDY M R.Effect of feeding complete feeds on various nitrogen fractions and total VFA concentrations in the rumen fluid of sheep[J].Indian Journal of Animal Sciences,1985,55(9):819-8232.

[6] MERTENS D R.Creating a system for meeting the fiber requirements of dairy cows[J].Journal of Dairy Science,1997,80(7):1463-1481.

[7] TJARDES K E,BUSKIRK D D,ALLEN M S,et al.Neutral detergent fiber concentration of corn silage and rumen inert bulk influences dry matter intake and ruminal digesta kinetics of growing steers[J].Journal of Animal Science,2002,80(3):833-840.

[8] AITCHISON E M,GILL M,DHANOA M S,et al.The effect of digestibility and forage species on the removal of digesta from the rumen and the voluntary intake of hay by sheep[J].British Journal of Nutrition, 1986,56(2):463-476.

[9] 朱立涛.物理有效纤维对山羊营养物质流通量,消化性能和氮平衡的影响[D].硕士学位论文.长沙:湖南农业大学,2007.

[10] NRC.Nutrient requirements of sheep[S].6th ed. Washington,D.C.:National Academy of Science,1985:45-73.

[11] AOAC.Official methods of analysis of AOAC international[S].16th ed. Arlington,VA:AOAC International,1995.

[12] HEINRICHS A J,KONONOFF P.Evaluating particle size of forages and TMRs using the new Penn State Particle Separator[EB/OL].[2017-01-13].http://www.doc88.com/p-0941513214375.html.

[13] 史清河,韩友文.不同加工处理的幼羊全混合日粮各养分表观消化率的研究[J].中国草食动物,1999,1(6):7-9.

[14] 孙国荣,林月霞,吕玉华,等.膨胀颗粒饲料对奶牛生产性能、血液生化指标及营养物质表观消化率的影响[J].中国牛业科学,2009,35(1):13-16,32.

[15] YANG W Z,BEAUCHEMIN K A.Increasing the physically effective fiber content of dairy cow diets may lower efficiency of feed use[J].Journal of Dairy Science,2006,89(7):2694-2704.

[16] ZHAO X H,ZHANG T,XU M,et al.Effects of physically effective fiber on chewing activity,ruminal fermentation,and digestibility in goats[J].Journal of Animal Science,2011,89(2):501-509.

[17] 董凌云,雒秋江,潘超,等.饲喂颗粒日粮对妊娠母羊采食和消化代谢的影响[J].中国畜牧兽医,2014,41(6):77-84.

[18] YANG W Z,BEAUCHEMIN K A,RODE L M.Effects of particle size of alfalfa-based dairy cow diets on site and extent of digestion[J].Journal of Animal Science,2002,85(8):1958-1968.

[19] 王新谋.家畜粪便学[M]上海:上海交通大学出版社,1997.

[20] 翼一伦.秸秆饲料营养价值研究的进展[J].中国畜牧杂志,1990,26(4):61-63.

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References