Packed with our unique blend of oyster shell, key vitamins and minerals for strong shells and bodies.
Calcium is the number one nutrient for laying hens. For years, there has been only one way to provide this key nutrient: by supplementing layer feed with oyster shells.
Now, Purina® Layena®, Layena® Plus Omega-3 and Organic layer feeds include Oyster Strong® System, an exclusive blend of oyster shell and key vitamins and minerals, like vitamin D and manganese, ensuring a supply of calcium will be available at night when your hens are forming eggs.
Our exclusive Oyster Strong® System eliminates the need to supplement as all the necessary calcium is included in every bite of our complete layer feed.
And now, our certified USDA Organic chicken feeds include our Oyster Strong® System - click here to learn more about our Organic product offerings and benefits.
Try Purina® Layena®, Layena® Plus Omega-3 or Organic Layer feed with Oyster Strong® System
Purina’s Oyster Strong® System is a blend of oyster shell and key vitamins and minerals, like vitamin D and manganese. This combination includes large particles that break down slowly, ensuring that hens receive a supply of calcium at night when they need it most. This slow-release calcium is important for strong shells and healthy hens. It’s included exclusively in Purina® Layena®, Layena® Plus Omega-3 and Organic layer feeds.
Oyster Strong® System is made up of larger particle size oyster shell. The large particles break down over time and release calcium slowly.
Here’s why slow-release calcium is important:
Through the entire egg formation process, hens incorporate nutrients from their feed into the egg and shell. Offering a complete layer feed that includes Purina’s exclusive Oyster Strong® System, like Layena®, Layena® Plus Omega-3 or Organic layer feed, helps you provide all the nutrients your hens need for nutritious eggs, protected by strong shells.
If you are feeding your hens a diet consisting of 90% Purina® Layena®, Layena® Plus Omega-3 or Organic layer feed with Oyster Strong® System, you should not need to supplement with oyster shells. The added calcium is included right in the feed.
You can provide egg shells to your hens as a calcium source. Just be aware that there could be some issues with this approach.
Remember that Oyster Strong® System is incorporated into Purina® Layena®, Layena® Plus Omega-3 and Organic Layer feeds. In most cases, you should not need to supplement oyster shell when you are feeding a complete layer feed that includes Oyster Strong® System.
Start feeding a complete layer feed to your hens when they turn 18 weeks old or when you see the first egg, whichever comes first. Eighteen weeks is the age when most egg-laying breeds are considered adults. Most excitingly, it’s the time when many breeds will lay their first egg. To produce eggs, hens require different nutrients from when they were growing; therefore, at this key milestone, you can start switching your chickens to layer feed.
After choosing a complete layer feed for your flock, it is important to make the transition over time to prevent digestive upset.
For the backyard birds on our farm in Missouri, we have found it’s best to make the transition over time rather than all at once. We mix the starter and layer feed evenly for four or five days. If birds are used to crumbles, start with a crumble layer feed. The same goes with pellets. The more similar the two feeds are, the more smoothly the transition will go.
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.
Each of our three layer feeds is formulated to provide all the nutrients laying hens require. The choice between the three comes down to personal preference and flock goals.
Purina® Layena® and Layena® Plus Omega-3 are very similar. They’re both complete layer feeds that provide all the nutrients your hens need. The difference between the two is Omega-3 and, in turn, egg nutrition. Layena® Plus Omega-3 includes added omega-3 to help hens produce eggs with up to 5 times as much Omega-3 as store-bought eggs.1
If you are raising organic hens, choose Purina® Organic layer feed.
1When fed a diet of Layena® Plus Omega-3 exclusively for at least 3 weeks. Based on large egg (56 g). Results may vary with factors such as total diet and hen health. A typical store bought egg contains 50 mg of Omega-3 fatty acids per large egg (USDA: National Nutrient Base).
Read what chicken raisers across the country are saying about Layena® and Layena® Plus Omega-3 with Oyster Strong® System, after trying the feed for just 30 days.
“When I switched to Purina® Layena® with Oyster Strong® System feed, I immediately noticed a difference. Not only does the food last longer, the egg shells are strong and my hens are happy. I wouldn’t use any other feed for my hens.”
LJ33, BackYard Chickens member
“We’ve been feeding Purina® Layena® with Oyster Strong® System for two months. The girls love it. Strong shells and great tasting eggs! I won’t feed anything else again!”
Susan B., Purina Poultry Facebook fan
“We were giving our hens oyster shells, but still getting soft shells. I switched to Purina® Layena® pellets and by the second day, voila! It was like someone turned on the hardening switch. My eggs now crack in a perfect ring around the egg.”
Stefanie L., Purina Poultry Facebook fan
“My hens love the Purina® Layena® with Oyster Strong® System crumbles! Their eggshells are nice and strong. I love knowing that they’re getting everything they need from one bag.”
junieb609, BackYard Chickens member
“I have fed Purina® Layena® for the past four years. A few years ago, I was excited about the added omega. Now, I’m thrilled with the added Oyster Strong® System. My birds are so happy and the eggs taste great!”
Mo B., Purina Poultry Facebook fan