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Feeding Systems with Legumes to Intensify Dairy Farms - cgiar

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Content<br />

Project Objectives iii<br />

List of Abbreviations and Acronyms Used iv<br />

Executive Summary v<br />

Achievements attained for each component and activity of the Tropileche Consortium, 1996-2000 ix<br />

Final Report of the Tropileche Consortium: <strong>Feeding</strong> <strong>Systems</strong> <strong>with</strong> <strong>Legumes</strong> <strong>to</strong> <strong>Intensify</strong> <strong>Dairy</strong><br />

<strong>Farms</strong> (A project executed by the Tropileche Consortium) 1<br />

Introduction 1<br />

Research Results 3<br />

Component 1: Optimizing Forage Use 3<br />

Activity 1.1. Controlled feeding and grazing trials <strong>to</strong> determine the relationships between<br />

milk production and forage resources<br />

Evaluation of Brachiaria decumbens alone and associated <strong>with</strong> Arachis pin<strong>to</strong>i on milk production<br />

3<br />

and milk components<br />

Rice yield (Oriza sativa) as an indica<strong>to</strong>r of soil fertility <strong>with</strong> the incorporation of Stylosanthes<br />

4<br />

guianensis stubble in Pucallpa, Peru 12<br />

Activity 1.2. Use of forage resources and supplementation of cows during the dry<br />

season 14<br />

Evaluation of milk production systems using Cratylia argentea 15<br />

In vivo studies on the complementarity between forage basal diets and legume supplements<br />

Effects of feeding fresh and ensiled Cratylia argentea during the dry season on milk production<br />

18<br />

and milk components<br />

Evaluation of Cratylia argentea as substitute of chicken manure in diets for cows grazing<br />

21<br />

Hyparrhenia rufa pastures 27<br />

Use of additives for making Cratylia argentea silage<br />

Planting maize in association <strong>with</strong> forage soybean for silage production on the Pacific coast of<br />

32<br />

Costa Rica: 1. Economic effect of partial sale of tender corn harvest<br />

Planting maize in association <strong>with</strong> forage soybean for silage production on the Pacific coast of<br />

36<br />

Costa Rica: 2. Several indica<strong>to</strong>rs of silage quality 40<br />

Activity 1.3. Functional relationships among forage resources of contrasting quality,<br />

rumen fermentation, and blood parameters<br />

Defining milk urea nitrogen concentrations for optimum recommendations of protein:energy<br />

45<br />

ratios in tropical forage diets 46<br />

Research Results 48<br />

Component 2. Developing New <strong>Feeding</strong> Alternatives for Dual-Purpose Cattle 48<br />

xi<br />

Page

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