Summary of Embrapa: calor extremo faz vaca perder mais de 30% de leite

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In the YouTube video "Embrapa: calor extremo faz vaca perder mais de 30% de leite," researchers from Embrapa explore the effects of extreme temperatures and humidity on dairy cattle production and reproduction. Marcos Vinícius Barbosa da Silva from Embrapa's dairy cattle division explains that thermal stress caused by heat and humidity can lead to decreased productivity, reproductive issues, and even death in animals. The researchers are working on a genetic improvement program for the Jidolo and Jers breeds to make them more resilient to these climate conditions. They have developed an equation to predict which bulls will produce offspring with better heat stress resistance and less milk loss during lactation. The results for the Jidolo breed have already been published, and producers can now identify which animals have daughters with better heat stress resistance. The researchers plan to apply this method to other breeds, including the Gir Leiteiro, and potentially make Brazil a reference country for this research. They emphasize the importance of sharing scientific advancements with farmers to improve their herds and increase profitability, and invite viewers to engage in dialogue about the study and related topics.

• 00:00:00 In this section of the YouTube video titled "Embrapa: calor extremo faz vaca perder mais de 30% de leite," researchers from Embrapa discuss the impact of extreme temperatures and humidity on dairy cattle production and reproduction. Marcos Vinícius Barbosa da Silva, a researcher from Embrapa's dairy cattle division, explains that both temperature and humidity can put animals under thermal stress, leading to reduced productivity and reproductive performance, and even death. The researchers are currently working on a genetic improvement program for the Jidolo and Jers breeds to make them more resilient to these climate conditions. They have developed an equation to predict which bulls will produce offspring with better performance under heat stress. The results for the Jidolo breed have already been published, and producers can now identify which animals have daughters with better heat stress resistance and less milk loss during lactation. The researchers plan to apply this method to other breeds, including the Gir Leiteiro, to make their herds more resilient to climate challenges.
• 00:05:00 In this section of the YouTube video titled "Embrapa: calor extremo faz vaca perder mais de 30% de leite," researchers discuss the potential application of genetic selection in breeding cattle that are more resilient to extreme temperatures and humidity. The project, which is currently being developed for the Gersa breed, could potentially be extrapolated to other breeds. The goal is to identify and breed animals with offspring that have a lower susceptibility to temperature and humidity variations. Brazil may become a reference country for this research, and the export of semen from more resilient animals is a possibility. The researchers emphasize the importance of sharing scientific advancements with farmers to improve their herds and increase profitability. They invite viewers to engage in dialogue about the study and other related topics.