A must-have course for scientific chicken farming: a complete explanation of nutritional requirements and diet formulas – the secret to making high-efficiency feed at low cost and increasing egg production by 20%

Now we have a golden universal formula, which is suitable for all chicken farmers. It can produce high-efficiency feed at low cost, increase egg production by 20%, and maximize economic benefits. Friends in need are recommended to collect it!

1. Five core nutritional requirements of chicken

· Energy requirements (accounting for 35%-65%)

o· Corn is the king of energy (yellow corn is preferred, containing lutein to improve egg yolk color)

o Wheat/sorghum replaces part of corn, sorghum needs to be supplemented with vitamins

o Be wary of aflatoxin in aged grains, add mildew inhibitors

· Protein requirements (20% for chicks, 16% for laying hens)

o· Soybean meal plant protein core (crude protein 40%-50%) (second-hand or expired tofu can be purchased on the market for fermentation)

o Fish meal is a golden source of animal protein (Peruvian fish meal protein ≥ 62%), and the demand for chicks is as high as 20%

o Alternative solution 3% silkworm pupa meal + 2% blood meal + 1% methionine

· Mineral requirements (calcium 3.5%-4.5%, phosphorus 0.6%), calcium needs 3.5%-4.5% during egg-laying period

o· Calcium source shell powder (preferred) + stone powder (ratio 2:1)

o Phosphorus source bone meal + calcium hydrogen phosphate to prevent calcium-phosphorus imbalance

· Vitamin requirements

o· Green feed alfalfa/carrot supplements VA and VE

o Additional VD3 is added to breeder chickens to promote calcium absorption

· Fiber regulation (≤10%)

o· Wheat bran/rice bran regulates intestinal function, excessive intake reduces feed conversion rate

• Scientific combination of four core feeds

category	Representative raw materials	Use points
Energy feed	Corn, wheat, sorghum	Yellow corn accounts for ≤65% and aged grain needs to be detoxified
Plant Protein	Soybean meal, rapeseed cake	Rapeseed cake ≤5% (can be raised to 8% after detoxification), soybean meal needs high temperature to remove anti-nutritional factors
Animal protein	Fish meal, fly larvae, insect meal	Fishmeal is preferably from Peru, alternative: 3% insect protein + 2% feather meal
Functional additives	Shell powder, salt, multivitamin	Salt 0.3%-0.5%, reduced to 0.25% in hot season to prevent poisoning; feeding oyster shells in the afternoon to increase eggshell thickness by 15%

• Three-stage precise formula solution

（1）. High-protein fast-growing chicks (0-3 weeks)

· Formula: 60% corn + 22% soybean meal + 5% fish meal + 8% wheat bran + 5% premix

· Key indicators: crude protein ≥ 20%, metabolizable energy 2900kcal/kg

· Tips: Add 1% gravel to aid digestion

（2.) Growing chickens (4-18 weeks) control weight and stabilize skeleton

· Formula corn 58% + soybean meal 15% + rice bran 12% + rapeseed cake 5% + bone meal 2% + green fodder 8%

· Tips: limit feeding to 1 day per week to prevent over-fatness, and supplement 1% gravel

(3.) Laying hens (after 19 weeks) calcium and phosphorus fortified type

· Formula corn 62% + soybean meal 18% + shell powder 8% + fish meal 3% + vegetable oil 2% + multivitamin 0.2%

· Enhanced feeding of oyster shell particles in the afternoon alone, eggshell strength increased by 15%

• Three techniques for low-cost self-mixing

(1.) Use local materials (eat whatever is available) 5% pumpkin replaces corn (needs to be dried and crushed), reducing costs by 0.3 yuan/jin

(2.) Fermentation and detoxification

Fermentation and detoxification of rapeseed cake (EM bacteria fermentation at 30℃ for 72 hours), safe dosage increased to 8%

• ) When fish meal is in short supply, use 3% insect protein + 2% feather meal + 1% methionine

5. Common misunderstandings and pitfall avoidance guide

❌ Risk of mildew: Corn with a moisture content of ＞14% is prone to mildew, and 1kg/ton of mildew inhibitor (such as calcium propionate) needs to be added

❌ Excessive fiber: Wheat bran exceeding 15% causes loose feces, and 2% zeolite powder can be added for adsorption

❌ Calcium-phosphorus imbalance: Bone meal and stone powder are mixed in a ratio of 1:2, and chickens with hemophosphatemia need to supplement with phytase