Carbohydrate and Protein Fractionations of commonlyused forages and agro-industrial byproducts as per CornellNet Carbohydrate and Protein system (CNCPS)

Journal of Livestock Science

article

V. Patidar¹  S. Dixit¹  M. M. A. Ghandour²  A. Keshri¹  M. Singh³  S.S. Kundu¹ 

[1] Animal Nutrition Division, ICAR- National Dairy Research Institute;Animal and Poultry Nutrition Department- Desert Research Center- Egypt;Subject Matter Specialist, Krishi Vigyan Kendra, Banda University of Agriculture and Technology

关键词: Forages;    Agro-industrial byproducts;    CNCPS;    Carbohydrate fractions;    Protein fractions;   

DOI  :  10.33259/JLivestSci.2022.182-187

学科分类：农业科学（综合）

来源: Journal of Livestock Science

【 摘 要 】

The present study was aimed to evaluate chemical composition viz. carbohydrate and protein fractions ofsome forages and agro-industrial byproducts commonly used for ruminant ration in tropical countries. Five foragesamples namely berseem (Trifolium alexandrinum), maize (Zea mays), oat (Avena sativa), sorghum (Sorghumbicolor), pearl millet (Pennisetum glaucum); and four agro-industrial byproducts viz. sugarcane tops (Saccharumofficinarum), oat hay, wheat straw (Triticum aestivum) and paddy (rice) straw (Oryza sativa) were evaluated by usingCornell net carbohydrate and protein (CNCP) system. Among various carbohydrate fractions, CA (Instantly/fastdegradable fraction) was found highest in berseem (34.24%) and lowest in oat hay (2.63%); whereas CB1 values(Intermediately degradable fraction) ranged from 11.46% (berseem) to 3.73% (pearl millet). CB2 (Slowly degradablefraction) was highest in sugarcane tops (73.46%) and lowest in berseem (34.25%). CC which refers as undegradablecarbohydrate fraction was found highest in oat hay (25.99%), but lowest in sugarcane tops (10.09%). On the otherhand, protein fractions, PA (Instantaneously degradable) was found highest in sugarcane tops (39.79%) and the lowestvalue was there for paddy straw (9.79%). On the contrary, paddy straw contained highest PB3, which accounts forslowly degradable fraction of protein as 36.47% and the lowest value was in sugarcane tops (4.73%). Non-degradablefraction (PC) was found highest in wheat straw (30.66%) and lowest in oat (10.56%). The CNCP analysis dictated thenutrient utilization potential of the given forages and agro-industrial byproducts. Therefore, having lower CC fraction,sugarcane tops and sorghum may supply higher content of carbohydrates, however, lower PC content of oat and pearlmillet make them good protein sources to ruminant ration.

【 授权许可】

Unknown