"From Wolves to Dogs: Uncovering the Genetic Journey of Domestication"
Introduction
Brain Function and Behavior: Nineteen genomic regions linked to brain function were identified, with eight involved in nervous system development—these may explain the behavioural adaptability of domestic dogs compared to their wild ancestors.
Dietary Adaptations: The study also found signals of selection in ten genes associated with starch digestion and fat metabolism, suggesting that early dogs evolved to digest starch more efficiently than wolves. This adaptation was crucial as it allowed dogs to thrive on a diet different from the strictly carnivorous one of their wolf ancestors.
By analyzing 3.8 million genetic variants, scientists identified 36 genomic regions that likely played a role in dog domestication. This detailed genetic investigation focused particularly on genes related to brain function and metabolism, aiming to understand the behavioural and physiological transformations from wolves to dogs.
Read full study here@nature.com
Jan 1, 2023
Why it matters to you?
1. Understanding Domestication's Impact on Canine Behavior
The findings provide insight into how genetic changes may have facilitated the unique behavioral traits seen in domestic dogs, offering explanations for their social and cognitive differences from wolves.
2. Exploring Dietary Evolution
Highlighting the genetic basis for dietary changes underscores the adaptability of dogs to diverse environments and food sources, which was essential for their integration into human societies.
3. Implications for Modern Dog Care
Knowledge of these genetic adaptations can influence current pet care practices and nutrition strategies, helping pet parents and veterinarians tailor diets and care routines that align with the natural predispositions of different dog breeds.
Other Studies
"Comprehensive Review of Commercial Plant-Based Diets for Dogs"
Nutritional Standards and Testing:
Plant-based dog diets are typically formulated to meet AAFCO nutrient recommendations, similar to meat-based diets, although actual feeding trials are rare in the industry.
The critique often directed at plant-based dog food regarding untested nutritional claims is also applicable to many meat-based diets sold commercially, which frequently rely solely on nutrient profile formulations without feeding trial verification.
Additional tests such as dietary nutrient analysis and digestibility can further substantiate the nutritional claims of these diets, though such information is seldom disclosed on product packaging or promotional materials.
Jan 12, 2018
"Exploring Vegan Diets for Pets: A Systematic Review"
The review found no conclusive evidence of adverse effects from feeding pets a vegan diet, and there were indications of some health benefits. However, the overall evidence was rated as low to very low in certainty, highlighting the complexity and variability in study designs and outcomes. This suggests that while vegan diets can be safe, the decision to switch should be approached with careful consideration of the animal’s nutritional needs.
Jan 12, 2023
"Plant-Based Diets and Canine Health: Owner Perceptions and Reported Benefits"
Health and Wellbeing Comparisons:
Owners of dogs on plant-based diets reported fewer instances of ocular, gastrointestinal, and liver disorders compared to those feeding meat-based diets.
These dogs were also perceived to have greater longevity, indicating potential long-term health benefits of plant-based diets.
Interestingly, owners who chose plant-based diets for their dogs tended to consult veterinarians less frequently for nutrition advice.
Jun 11, 2022