What Should Chickens Eat When They Turn 18? (Weeks Old)

How to Switch to a Chicken Layer Feed

what-do-chickens-eat

When you turn 18, you can do a lot of new things. You can vote, buy fireworks and even try your luck with the lottery. The magical number means – welcome to adulthood.

For backyard chickens, the number 18 means the same thing. Eighteen weeks is the age when most egg-laying breeds are considered adults. Most excitingly, it’s the time when many chicken breeds will lay their first egg. At this key milestone, flock raisers often find themselves asking, “What do chickens eat as adults? Do they need to transition to different feed?”

Patrick Biggs, Ph.D., a flock nutritionist for Purina Animal Nutrition, says a feed switch is an essential step in the road to reaping farm fresh egg benefits.

“When hens lay eggs, they require different nutrients,” he explains. “To produce an egg each day, hens need high levels of calcium, vitamins and minerals. Hens transfer many of these nutrients directly into their eggs, so layer feed plays an essential role in the eggs that hens produce.”

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To transition to a complete chicken layer feed, consider the following steps.

1. Choose a chicken feed that matches your goals.

Select a complete layer feed before the transition begins. Ideally, the layer feed decision should be made by week 16, so the transition can be planned.

Biggs recommends looking for a complete chicken layer feed. This means the feed should be formulated to provide everything hens require without a need to supplement.

“There are many complete chicken layer feed options available,” Biggs says. “From organic to rich in omega-3 fatty acids, look for a complete layer feed that matches your goals. In any case, be sure the layer feed is made with simple, wholesome ingredients. The feed should include 16 percent protein and at least 3.25 percent calcium as well as key vitamins and minerals.”

“These are just the essentials,” Biggs adds. “Look for additional ingredients in the layer feed to bring hen health and egg quality to the next level.”

A week-by-week guide to a happy, healthy flock!

Our friends from Purina® wrote this free guide to help you enjoy your first year with chickens.  YES! I want this Free Report »

2. Transition over one week.

When birds reach 18 weeks old or when the first egg arrives, slowly begin transitioning to a chicken layer feed. Biggs’ advice is to make the transition over time to prevent digestive upset.

“For our backyard birds on our farm in Missouri, we have found it’s best to make the transition over time rather than all at once,” he says. “We mix the starter and chicken layer feed evenly for four or five days. If birds are used to crumbles, start with a crumble chicken layer feed. The same goes with pellets. The more similar the two feeds are, the more smoothly the transition will go.”
Biggs says that many hens will eat the mixed feed without noticing a difference. When hens are eating both feeds, flock owners can stop feeding the starter feed and make the complete switch to all layer feed. It is important to give your birds enough time to adjust to the new diet. Most birds will adjust within a couple of weeks but some can take a month or longer to fully transition to their new diet.

3. Keep it consistent.

Once the transition to layer feed is complete, it’s best to maintain a routine.

Biggs recommends providing free-choice layer feed to hens and switching out the feed each morning and evening. For free-range chickens, offer the complete feed to hens before they go out in the morning. This will help them consume the nutrients they require before filling up on less nutritious insects and plants.

At the end of the day, keep in mind that not all complete feeds are created equal.

“It’s important for the complete feed to make up at least 90 percent of the hen’s diet,” Biggs says, listing Purina® Organic layer feed, Purina® Layena® Plus Omega-3 and Purina® Layena® pellets or crumbles as his top choices. “We feed complete layer feeds on our farm because they are formulated to provide all the nutrients hens require at the correct levels. It’s reassuring to know that each bite of feed is balanced to keep our hens healthy and producing quality eggs.”

A few next level ingredients to look for to keep hens healthy and productive include:

– For rich, yellow yolks: Marigold extract
– For strong shells: Oyster Strong™ System
– For immune and digestive health: Prebiotics and probiotics
– For vibrant feathering: Essential amino acids such as lysine and methionine
– For omega-rich eggs: Added omega-3 fatty acids

Flock raisers are invited to celebrate egg-laying season during Purina® FLOCK-TOBER™ 2016. In September and October, participating Purina retailers will offer free tin coop signs with the purchase of Purina® layer feed.

To find a location near you and for more information on hen nutrition, visit www.purinamills.com/chicken-feed or connect with Purina Poultry on Facebook or Pinterest.

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