In
a hydroponic system, plants are placed in nutrient-enriched water. Mediums such
as gravels, sand or vermiculite can also be used. Thus plants which are placed
in the water absorb the nutrients very easly. When the nutrients from the water
starts finishing , water is recycled or additional nutrients are added.
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Key points of fast fattening technology for commercial meat rabbits
Raising meat rabbits efficiently requires careful planning and attention to detail. First, choosing the right breeds is crucial. High-quality meat rabbits should grow quickly, have a short feeding period, high feed conversion rates, good meat quality, large litter sizes, and strong economic returns. Popular choices include New Zealand White, California, Belgian, French Blue, and Purple rabbits. It's important not to focus solely on large breeds, as they often yield lower economic returns compared to medium-sized ones. Currently, it's best to focus on medium-sized rabbits with white or blue-gray coats for better performance and marketability.
Second, using hybrid combinations can significantly boost growth rates. Crossbreeding between different breeds takes advantage of heterosis, where offspring grow faster and perform better. Common combinations include medium-to-medium, medium-to-small, and medium-to-large crosses. For example, using a small or medium female with high fertility (like New Zealand Whites) and a larger male with good growth traits (such as Belgian Whites) can produce superior offspring. Some farmers even use three-way crosses by first crossing two breeds and then raising the resulting hybrids. Fattening strategies vary: some start at weaning and sell at 3 months old, while others focus on eliminating non-ideal rabbits. Vaccination is generally avoided in fattening rabbits, and moderate feeding methods can achieve weight gains of over 1 kg in one month.
Third, improving weaning weight is key to successful fattening. This depends on selecting mother rabbits with strong maternal instincts and high milk production, along with proper care during lactation. Weaning weight is critical—medium-sized rabbits should weigh over 500g and large ones over 600g by 30 days. After weaning, it’s best to keep rabbits in their original cages or group them by size to reduce stress. A clean, dry, and well-ventilated environment (between 15–25°C) is essential. Feeding should transition gradually from pre-weaning diets to balanced rations after 1–2 weeks.
Fourth, feeding must be scientifically managed according to the rabbit’s life stage. Using a combination of commercial feeds and green forage has been proven effective. However, avoid overfeeding green fodder immediately after weaning. The diet should contain 17–18% protein, 10.47 MJ/kg energy, and around 12% crude fiber throughout the fattening period. In the early stages, coarse feeds are preferred, followed by concentrates. Later, more concentrates help build fat and muscle. Adding vitamins and minerals can enhance growth performance. Feed four times daily—early, midday, late, and at night (around 10 PM)—and ensure constant access to fresh water to promote healthy growth.
Fifth, castrating male rabbits early (at 45–60 days) improves meat quality and weight gain by 10–15%. It also makes management easier and reduces aggression among males.
Sixth, disease prevention is vital. Common issues include coccidiosis, diarrhea, and fleas. Maintaining clean housing, regular disinfection, and good ventilation can reduce disease risks. During peak seasons, preventive medications and vaccines should be administered regularly to keep the herd healthy and productive.
Seventh, limiting movement helps increase fat deposition. Free-range systems may lead to higher activity and lower weight gain. Instead, rabbits should be kept in cages in a quiet, warm, and dimly lit environment. High-density housing is acceptable, especially in the later stages of fattening, to minimize movement and maximize fat accumulation.
Finally, timing the slaughter properly is essential. Fast-growing breeds can reach 2–2.5 kg in 80–90 days, while males are typically slaughtered at 30–40 days. Over-fattening beyond six months leads to slower growth and higher feed costs, reducing profitability. Therefore, slaughtering at the optimal time ensures maximum economic returns.