Special feeding and management practices can significantly enhance the performance of laying hens. Several unique feeding strategies have been implemented internationally, each with its own benefits. Here are some notable methods:
1. **Vitamin C Supplementation**
In Russia, studies found that adding 40 mg of vitamin C per kilogram of feed at high temperatures (178–444°C) increased egg production by approximately 6% over three months. At more moderate temperatures (17–27°C), adding 30 mg of vitamin C per kilogram of feed improved egg production by 7% over 48 weeks. This suggests that vitamin C can help hens maintain productivity under varying environmental conditions.
2. **Choline Addition**
In the United States, research showed that hens fed a diet containing 0.05% choline had a higher laying rate (76.2%) compared to those without choline (73.3%). The average egg weight was also higher in the choline-fed group (61.5 g vs. 58.7 g), and their final body weight was slightly greater (1943 g vs. 1906 g). These results indicate that choline supports both egg quality and hen health.
3. **Tryptophan Supplementation**
Japanese experts added 500 ppm of L-tryptophan to the base diet of laying hens, resulting in a 9% increase in egg production and an additional 55 grams of eggs per day. Even after 53 weeks of age, the egg production rate remained elevated, showing that tryptophan may support long-term reproductive performance.
4. **Hunger Method**
This technique involves fasting hens one month before they start laying. During the first week, feed is gradually reduced, and by the second week, it's cut to 1/20 of the normal amount, with water being the main source of sustenance. This creates a strong sense of hunger. After a month, feed is slowly reintroduced to normal levels, allowing the hens to enter the laying phase. By controlling vegetative growth during the fasting period, this method stimulates reproductive development and estrogen production, leading to a potential 40% increase in egg production.
5. **Head Cooling Technique**
A ventilation system is installed on the top of the poultry house to provide cool air directly to the hens’ heads. Keeping the head temperature low has been shown to boost the laying rate by about 25%. This method helps reduce heat stress, which is particularly beneficial in hot climates.
These innovative approaches highlight how careful nutritional and environmental management can significantly improve the productivity and well-being of laying hens.
Polyacrylamide is a kind of high molecular polymer. It is widely used for industry like water treatment, paper, oil, coal, mine, textile, construction, etc.
Polyacrylamide Gel Electrophoresis,Anionic Polyacrylamide,Polyacrylamide Crystals,Polyacrylamide Polymer,Sds Polyacrylamide Gel Electrophoresis
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com