+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Economic comparison of nutritional management strategies for Venezuelan dual-purpose cattle systems

Economic comparison of nutritional management strategies for Venezuelan dual-purpose cattle systems

Journal of Animal Science 72(7): 1680-1696

Objectives of this study were to compare three nutritional management strategies for dual-purpose herds in Venezuela in 1987 using a deterministic, multiperiod linear programming model of a representative farm. The model maximized discounted net margin (total revenues minus variable costs) from the herd for a 3-yr cow replacement cycle partitioned into six periods. The periods accounted for seasonal variation in forage availability and quality, and the model provided information about optimal animal inventories, animal sales, land in forage, and feed supplements. We compared current nutritional management practices and alternatives allowing optimal supplementation with commercial concentrate, molasses, cassava root, and urea. Iteration between the programming model and results from the Cornell Net Carbohydrate and Protein System assured technical coefficients consistent with predicted animal performance. Compared with management practices relying on commercial concentrate, optimal use of molasses and urea permitted increases in the stocking rate. Productivity and profit were restricted primarily by energy intake, which was constrained by intakes of NDF and DM. Alternative management strategies changed the relative importance of nutrient requirements and feed intake constraints. Thus, optimal interventions to alleviate nutritional constraints will vary with current management. Mobilizing adipose and protein tissues during lactation was optimal for most strategies. Supplementing with molasses and urea instead of commercial concentrate was the most profitable strategy, increasing herd net margin by 16% compared to the predominant feeding strategy in the late 1980s.

(PDF emailed within 1 workday: $29.90)

Accession: 002351718

Download citation: RISBibTeXText

PMID: 7928747

Related references

A study on the postpartum period in dual-purpose cattle in the tropics in Guatemala. 1. A comparison of time elapsed between the resumption of ovarian activity (determined by milk progesterone peaks) and signs of oestrus in dual-purpose cattle milked once or twice daily. Ciencias Veterinarias Heredia 19(1/2): 51-74, 1996

Socio-economic characterization of dual purpose cattle systems in Santa Cruz, Bolivia. Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia 8(Supl.1): 23-26, 1998

Management and technology in cattle dual purpose systems. Revista Cientifica, Facultad De Ciencias Veterinarias, Universidad Del Zulia: 6, 715-724, 2008

Economic analysis of alternative nutritional management of dual-purpose cow herds in central coastal Veracruz, Mexico. Tropical Animal Health and Production 44(6): 1143-1150, 2012

Management level of dual purpose (taurus-indicus) cattle production systems. 1. Management index structure. Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia 7(3): 221-229, 1997

Economic evaluation of current and alternative dual-purpose cattle systems for smallholder farms in the central Peruvian highlands. Agricultural Systems 101(3): 152-161, 2009

Crop-animal mixed systems: (A). corn, beans, rice with dual-purpose cattle, pigs and (B). corn, beans with dual-purpose cattle. Case studies for a workshop: Research on Crop Animal Systems April 4-7-1982 Turrialba Costa Rica Centro Agronomico Tropical de Investigacion y Ensenanza Caribbean Agricultural Research and Development Institute: 212, 1982

Dairy of dual-purpose breed--an economic comparison of different price relations for milk and meat Cattle, West Germany.1. Bayerisches landwirtschaftliches Jahrbuch8(6): 704-709, 1981

Bio-economic analysis of dual-purpose management of winter cereals in high and low input production systems. Field Crops Research 227: 56-66, 2018

Success factors in dual purpose cattle production systems at El Laberinto Zone, Zulia state, Venezuela. II. Technical and economic aspects. Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia 8(Supl.1): 19-22, 1998

Resource management strategies in agro-ecosystems of Latin America, the case of dual purpose ruminant systems. Opportunities And Challenges For Smallholder Ruminant Systems In Latin America: Resource Management, Food Safety, Quality And Market Access: 1-132, 2008

The effect of population structure breeding systems and economic parameters on the breeding plans of dual purpose cattle. Annales de Genetique et de Selection Animale 5(2): 277-278, 1973

Comparison between breeding strategies in a simulated population of dual purpose cattle using the MOET nucleus breeding scheme. Arbeiten aus dem Institut fuer Tierzuchtwissenschaft der Rheinischen Friedrich-Wilhelms-Universitaet Bonn 0(98): 1-105, 1992

Comparison of dual purpose versus single purpose cattle. 2nd World Congress on Genetics applied to Livestock Production, 4th-8th October 1982-5 Plenary sessions: 399-413, 1982

Estimation and comparison of benefits due to feeding hay and silage during the dry season on commercial dual-purpose cattle production systems in Honduras and Costa Rica. Livestock Research for Rural Development 18(1): 15, 2006