The nutritive value ofPanicum maximum(guinea grass). III. Factors affecting voluntary intake by cattle and water buffaloes

Author:

Johnson W. L.,Hardison W. A.,Ordoveza A. L.,Castillo L. S.

Abstract

SummaryDry-matter intake (D.M.I.) fromPanicum maximum(guinea grass) was studied in digestibility trials with Holstein and water buffalo bulls and in a feeding trial with lactating cows.Differences in voluntary D.M.I. per unit body weight0·73between the Holsteins and water buffaloes were not significant. Average D.M.I. for all bulls in all main trials was 2·16 kg per 100 kg B.W. Average D.M.I. by the lactating cows was 2·08 kg per 100 kg B.W., for all practical purposes the same as for the bulls.D.M.I. was not related to stage of maturity or season of harvest of the guinea grass. Intakes of digestible protein, T.D.N., and digestible energy in different seasons and at different growth stages were related to the percentage of those nutrients in the grass.Correlation coefficients were 0·68 between D.M.I. and B.W.0·73, 0·59 between D.M.I. and T.D.N. content, and 0·58 between D.M.I. and crude protein content, D.M.I. was not closely related to dry-matter content (r= 0·30) or crude fibre content (r= 0–01) of the guinea grass.

Publisher

Cambridge University Press (CUP)

Subject

Genetics,Agronomy and Crop Science,Animal Science and Zoology

Reference17 articles.

1. Ragsdale A. C , Thompson H. J. , Worstell D. M. & Brody S. (1950). Environmental physiology. IX. Milk production and feed and water consumption responses. Res. Bull. Mo. agric. Exp. Stn. p. 460.

2. Climatic Physiology of Cattle

3. Reid J. T. (1965). Viewpoints on pasture-forage evaluation. Paper presented at the Annual Meeting of the American Society of Animal Science, August 1965, East Lansing, Mich.

4. Chemical composition, nutrient content, and potential milk-producing capacity of fresh tropical herbage;Hardison;Philippine Dairy Training and Research Institute Tech.Bull.,1966

5. The nutritive value of Panicum maximum (Guinea grass): I. Yields and chemical composition related to season and herbage growth stage

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3