Milk production increase in a dairy farm under a six-year Brucellosis control program

Annals of the New York Academy of Sciences
Enrique HerreraEfrén Díaz-Aparicio

Abstract

The present work aims to quantify milk production in a bovine dairy herd during a 6-year brucellosis control program in Hidalgo, Mexico, where bovine brucellosis is endemic. This 6-year longitudinal pilot study comprised 74 monthly samplings to determine the incidence of brucellosis and to quantify daily milk production. To determine the monthly incidence of brucellosis, an average of 346 Holstein cows was examined each month with the card and Rivanol tests. These animals had been vaccinated as calves with the normal dose of Brucella abortus RB51 and were revaccinated annually with a reduced dose. Brucellosis is endemic in Mexico, where the control programs include vaccination and diagnosis; nevertheless, it is uncommon to carry out other essential control practices, such as separation and elimination of positive cows. In this herd, the cows positive to the card and rivanol tests were separated in specific units, especially at the moment of delivery. These cows were placed at the end of the line for milking and were eliminated from the herd at the end of their productive cycle. In this dairy herd, cows were milked three times a day and there was a monthly average of 300 cows in production. At the beginning of this study the pre...Continue Reading

References

Sep 15, 1988·Biochemical and Biophysical Research Communications·J ZwillerA L Boynton
May 1, 1988·Trends in Biochemical Sciences·A Meister
Jun 3, 2000·Veterinary Research Communications·F A UzaH R Taddeo
Feb 24, 2001·Annals of the New York Academy of Sciences·N F Cheville
Feb 28, 2001·Microbes and Infection·B GoldingH Golding
Apr 22, 2004·Veterinary Research·Ignacio MoriyónJosé María Blasco
Nov 27, 2004·Comparative Immunology, Microbiology and Infectious Diseases·Marisela Leal-HernandezFrancisco Suárez-Güemes

❮ Previous
Next ❯

Citations

May 17, 2011·Preventive Veterinary Medicine·J GodfroidJ-J Letesson
Feb 2, 2010·The Veterinary Clinics of North America. Food Animal Practice·Steven Olsen, Fred Tatum
Jul 3, 2013·Tropical Animal Health and Production·Yulong ZhouYudong Cui
Nov 21, 2013·Tropical Animal Health and Production·Miguel MelladoJose E Garcia
Feb 24, 2021·The Veterinary Quarterly·Maryam DadarKuldeep Dhama
Mar 10, 2021·Tropical Animal Health and Production·Saeed AlamianMaryam Dadar

❮ Previous
Next ❯

Related Concepts

Related Feeds

Brucellosis (ASM)

Brucellosis is a bacterial infection caused by members of the genus brucella and remains one of the world's major zoonotic diseases. Discover the latest research on Brucellosis here.

Brucellosis

Brucellosis is a bacterial infection caused by members of the genus brucella and remains one of the world's major zoonotic diseases. Discover the latest research on Brucellosis here.