In the breeding process of Zhang Desheng Rabbit Farm located in Guangling Town, Taixing City, the farm focused on selecting high-quality rabbits as breeders and improved fox breeding techniques. This strategic shift significantly boosted the profitability of rabbit farming. In 2006, the farm achieved a revenue of one million yuan, doubling the average income from the previous three years.
The rabbit farm has been in operation for ten years. Initially, breeding efforts were limited due to outdated techniques and low productivity. However, in the second half of 2005, under the guidance of agricultural experts, the staff received training in advanced breeding methods, leading to remarkable improvements in production efficiency. In 2005, there were 28 male and 140 female rabbits. By 2006, the farm successfully gave birth to 4,580 young rabbits, with an average of 7.5 per litter. Over 3,500 Rex rabbits were sold that year at an average price of 58 yuan each, generating a total output value of 203,000 yuan and a profit of 100,000 yuan, setting a new record.
The key aspects of their breeding technology include:
1. **Selecting High-Quality Rabbits**
Starting in September 2005, the farm evaluated 760 mature rabbits. They selected those with well-proportioned bodies, bright eyes, shiny fur, a body length of over 40 cm, a chest circumference of more than 32 cm, and strong limbs. Male rabbits needed to have well-developed testes and good vitality, while females should have strong maternal instincts, more than four pairs of nipples, and clean genital areas. A total of 168 rabbits were kept. The farm also adjusted the male-to-female ratio from 1:12 to 1:5 to improve breeding efficiency.
2. **Optimizing Breeding Seasons and Techniques**
Although rabbits can be bred during the breeding season, heat in summer and shedding in early fall can reduce fertility. Therefore, the farm focused on breeding during spring and winter. Key steps included:
- **Preparation for Mating**: Ensuring adequate green feed, such as vegetables and carrots for males, and potatoes and cabbage for females. Regular sunbathing was encouraged to improve fitness.
- **Promoting Estrus**: Placing females in male cages daily to stimulate estrus through natural behavior.
- **Identifying Estrus**: Monitoring vulva color changes to determine the best time for mating.
- **Breeding Methods**: Mating in the morning or evening after feeding, with 1-2 sessions per day, and re-mating within 8-10 hours to increase conception rates.
3. **Nutrition During Pregnancy**
Proper nutrition is crucial for fetal development. The farm provided a balanced diet rich in protein, vitamins, and minerals, including bean cakes, peanut meal, bone meal, and salt, alongside sufficient green fodder.
4. **Disease Prevention**
Due to past losses from disease outbreaks, the farm now vaccinates rabbits against plague, pasteurellosis, and other infectious diseases at around 30 days of age to ensure long-term health and survival.
This comprehensive approach has transformed the farm into a model of efficient and sustainable rabbit breeding.
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