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Feeding Management Techniques in Fox Reproduction
The period from weaning until the removal of the fur is known as the breeding phase. During this time, proper feeding and management are crucial to ensure healthy growth and development in young foxes.
From 2 to 5 months of age, young foxes experience rapid growth and require a nutrient-rich diet to support their development. Their energy needs remain high until they reach 6 months old, after which their metabolic demands gradually decrease. If energy intake is inadequate, it can lead to stunted growth, weight loss, and dull, lackluster fur. It's important to use fresh fats in their feed, as oxidized fats reduce the availability of essential fatty acids and may lead to yellow-lipid disease in breeding animals. If signs of oxidation or yellow follicles appear, stop using the oxidized fat or increase vitamin E supplementation.
For a 25-week-old fox, to maximize nitrogen retention, the diet should contain more than 41% protein by dry matter. When adult foxes receive less than 30% digestible protein relative to metabolizable energy, the young may maintain normal body weight but show slower growth in body length. By around 5 to 6 months, they typically reach adult size.
Young foxes have a fast metabolism and high feed efficiency, so their diet must be balanced, clean, easily digestible, and of high quality. Feeding should be sufficient to avoid hunger, ensuring optimal nutrition. Deficiencies in minerals, vitamins, trace elements, yeast, and other nutrients should be addressed during this time to meet their full nutritional requirements.
Between 100 to 150 days of age, foxes grow rapidly, especially in terms of bone and muscle development. The second month after weaning is a critical period for determining final body size. Therefore, it's essential to adjust feed amounts appropriately, avoiding both overfeeding and underfeeding. Protein intake should be maintained at over 45g per day during this summer period. As growth slows, protein levels can be reduced gradually, but should not fall below 35g daily. Inadequate protein or poor nutrition during this stage can permanently affect the fox’s height and overall physique. Missing this window means even with high-quality feed later on, the fox may only grow into a short, stocky, and less desirable form.