By Scout Nelson
Recent research from North Dakota State University is shedding light on an often-overlooked aspect of cattle breeding: the significant impact of a bull's nutrition and physical condition on the health and genetics of their offspring. Carl Dahlen, a researcher, presented these findings at the Montana State University Nutrition Conference and Livestock Forum.
The studies, drawing parallels with human and mouse research, suggest that the condition of a bull nine months prior to breeding can notably influence calf health. For example, male mice in good physical condition produced healthier offspring, indicating similar potential outcomes in cattle.
The focus has traditionally been on bull calf development, targeting daily weight gain. New findings suggest a lower weight gain might be more beneficial, avoiding issues like scrotal fat accumulation and liver abscesses.
Bulls often lose weight before and during breeding season, a factor that might benefit offspring. Research in sheep supports this, showing rams losing weight before breeding produced lighter offspring, while obese sires had offspring more prone to diabetes.
As cattle genetics evolved since the 1980s, so does the understanding of ideal growth rates and conditions for bulls. This ongoing research is vital, considering most cows in a herd are exposed to breeding bulls. Understanding the full implications of bull nutrition and condition on offspring is crucial for effective herd management and genetic planning.
Photo Credit: gettyimages-steveoehlenschlager
Categories: North Dakota, Livestock