In recent studies, feeding breeder chickens with carrots has shown promising results in enhancing reproductive performance. A group of 360 breeder hens (10 roosters and 350 hens) was randomly divided into two groups. The experimental group received 40 grams of carrots per day for 30 days. The results were impressive: the egg production rate increased by 2.5%, the fertilization rate improved by 0.5%, and the hatching rate rose by 2.4%. Additionally, the semen quality of the roosters showed a significant improvement, suggesting that carrots may play a beneficial role in supporting reproductive health in poultry.
Another study focused on using carrots to address nutritional-related reproductive issues in cows. At a Simmental cattle farm, 54 cows experiencing estrus problems due to poor feeding practices were observed. After mating, only seven became pregnant, while the remaining 47 showed repeated estrus and infertility. To address this, farmers introduced a new feeding regimen during the breeding season: 0.5 kg of fresh carrots, 1.5 kg of silage, and 1 kg of concentrate per cow daily. After six months, the pregnancy rate dramatically increased from 13% to 64.8%, highlighting the positive impact of carrot supplementation on reproductive success in cattle.
For pigs, feeding carrots has also proven effective in improving reproductive performance. During winter and spring, when green feed is scarce, breeders have successfully used carrots as an alternative. Sows were given 0.25 to 0.5 kg of carrots per day, while boars received 0.5 to 1 kg. The results included a shorter estrous interval after weaning, a rise in the pregnancy rate from 86.71% to 90.38%, and a decrease in stillbirths and mummified fetuses from 5.63% to 3.12%. Boar semen quality also improved, with the dead sperm rate dropping from 33% to 15%, and their libido gradually increasing over time.
In northern China, where deer are raised in high-latitude areas, growth is often slow, disease resistance is weak, and antler production in males and fertility in females tend to decline. To address these challenges, farmers began feeding silage carrots instead of green feed during the winter months. This approach not only supported better growth and development but also helped maintain higher antler yields and reproductive rates. The silage method used was similar to those applied to other livestock, proving that carrots can be a valuable addition to deer diets in challenging environments.
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