Managing egg weight is essential for farmers and may drastically range relying on market demand. Acquiring an egg dimension according to market demand ensures most profit from the manufacturing.
It is very important discover the fitting steadiness between market demand when it comes to egg dimension and the very best shell high quality. The next are the components influencing egg weight.
Affect of genetics on egg weight
The heritability of the “egg weight” criterion is pretty excessive in contrast with the opposite standards, which implies that it’s doable to affect egg weight from one technology to the subsequent. Genetic choice is essential with regards to rising egg dimension quickly at the beginning of manufacturing, so as to acquire marketable eggs as rapidly as doable. This additionally helps in stabilising egg weight on the finish of the manufacturing cycle to maximise the variety of top-quality eggs.
Managing physique weight throughout rearing is a key to handle future egg weight
Flock administration from the start of the rearing interval can have a significant affect on egg weight Physique weight at sexual maturity and at gentle stimulation will play a vital position within the weight of future eggs.
A number of research have proven that early gentle stimulation induces a decrease physique weight at sexual maturity, and due to this fact a decrease egg weight. Morris (1980) and Koutoulis (1997) have proven {that a} variation in sexual maturity of one-week ends in a variation in egg weight of 1 g and within the variety of eggs of roughly 5 (5) eggs at 74 weeks of age. The desk beneath exhibits {that a} 100 g increment or decrement in pullet weight at sexual maturity ends in a change of about 1 g of egg weight.
Affect of pullet physique weight at 127 days on manufacturing efficiency
With a purpose to acquire an egg weight according to the market demand, you will need to examine the burden of the pullets on a weekly foundation from Week 1. Weighing pullets at switch, even when they attain the usual physique weight doesn’t imply {that a} good physique weight has been achieved, as it could additionally imply that some hens are too fats. To acquire dependable knowledge on physique weight, the pullet’s weight needs to be recorded from Week 1. This may be certain that physique improvement and progress have been passable all through the rearing interval. Additionally, the physique weight at 7 weeks of age and earlier than is sweet (muscle mass, organs, skeleton) and that is the very best time to take a position to advertise pullet progress. At round 8/10 weeks of age, pullets begin to retailer extra power of their fats reserves, primarily within the type of stomach fats.
Due to this fact, physique weight info is important because it facilitates flock monitoring and permits to regulate the lighting programme. Right adjustment of the lighting programme will assist acquire the specified sexual maturity whereas retaining in thoughts that it’s also essential to keep up progress through the begin of manufacturing as much as the age of 30 weeks. The lighting programme is designed so that every one the hens begin laying on the identical time. Adjusting this timing adjusts the long run weight of the eggs.
Managing egg weight with vitamin
Vitamin can have a substantial impression on egg weight. Completely different dietary strategies may be utilized to attain the specified egg weight:
- Egg weight is influenced by the oil content material of the feed. Oil has a transparent impression (direct or oblique) on egg weight. This pertains to added fats not included within the uncooked supplies. To cut back egg weight, decreasing the quantity of added oil/fats may be an possibility. Rising the fats content material within the weight loss plan doesn’t appear to have an effect on the variety of eggs produced. Nonetheless, egg weight will increase considerably, particularly initially of the laying interval. Oils wealthy in polyunsaturated fatty acids have a better impression on egg weight increment.
- Power ranges appear to affect egg weight. In keeping with our inside meta-analysis, a rise of 100 kcal can improve egg weight by a mean of 0.85%, even when feed consumption is decrease. Decreasing power consumption by reducing the power in feed might assist scale back the typical weight and the danger of fatty hens.
- Methionine is the amino acid that influences egg weight essentially the most. The Methionine/Lysine ratio may be adjusted in line with the anticipated egg weight profile. To cut back egg weight, it’s needed to cut back the quantity of methionine (decrease Met/Lys ratio).
- Protein ranges additionally seem to have an effect on egg weight. Our personal meta-analysis exhibits that an increment of 1% crude protein can improve egg weight by 1.65%. This impression is smaller than that of methionine however shouldn’t be missed.
- Presentation of the weight loss plan has an affect on egg weight, layers have desire for coarse particles and tends to depart the positive particles behind. Furthermore, feed granulometry play a vital position in feed consumption. Rising the quantity of positive particles within the feed may also help in decreasing egg weight through a discount of the feed consumption, but it surely might additionally result in a discount in egg manufacturing.
- All this dietary recommendation needs to be evaluated recurrently with native nutritionist and/or feed provider to regulate egg weights in line with market demand.
Local weather situation
Temperature additionally has an affect on egg weight: above 22-23°C, egg weight begins to lower. Between 24 and 28°C, egg weight is lowered by 0.4% per °C; past 28°C, egg weight is lowered by 0.8% per °C. It’s primarily influenced by a discount of feed consumption because of the warmth, impacting egg weight in addition to egg manufacturing.
In scorching climates, it’s due to this fact essential to have good temperature administration via air flow and feed administration. Excessive temperatures can even trigger warmth stress for the animals.
Conclusion
With a transparent understanding of the market demand, pullet administration may be adjusted to satisfy and outline the typical egg weight profile. It’s all the time simpler to extend egg weight via vitamin or administration than the opposite method round. Actually, when the hens are too previous, wanting to cut back egg weight can imply decreasing manufacturing.
Lastly, the continual genetic progress made by NOVOGEN has allowed important beneficial properties in each egg manufacturing and egg high quality. It has additionally made it doable to have sturdy and resilient birds in all situations of manufacturing. Nonetheless, so as to fulfil the layers’ genetic potential, the administration and vitamin of the flock should be carefully monitored, tailored to the native surroundings and market calls for.
