Vaccines: one discussion, honestly framed
An adult Khaki Campbell duck has almost no routine vaccination schedule, and a good poultry vet will say so plainly. The single product that may be discussed is protection against duck viral enteritis, relevant where that virus has appeared in regional waterfowl or where Campbells live in mixed collections sharing ponds and equipment. For a closed backyard laying flock, many vets judge management sufficient and revisit the question only if local cases emerge. What an adult Campbell genuinely needs is not a longer injection list but a laying-focused preventive routine, because this breed's remarkable egg output makes demands on the body that a non-laying duck never faces.
Feeding the layer is preventive medicine
A Khaki Campbell in full lay produces eggs at a rate that rivals good chickens, and every shell is built from dietary calcium. Prevention here means a proper layer ration available consistently, with additional calcium offered in a form laying birds can take as they need it, rather than a general flock feed that leaves a heavy layer quietly short. Soft or thin shells, a drop in laying, or a hen straining are the flock-level signals that the feeding program deserves review before individual birds struggle. Clean water beside the feed is part of the same point, since a duck that cannot drink properly cannot eat properly either, and Campbells drink heavily around laying.
Nest hygiene and egg handling
For a laying Campbell flock, nest and egg management is disease prevention in work clothes. Clean, dry nest bedding reduces bacterial contamination of shells, and collecting eggs promptly, at least daily and more often in hot or freezing weather, protects quality and discourages broodiness in a breed not selected for it. Cracked or floor-laid eggs are discarded rather than washed into the food supply. The routine also puts hands near the birds daily, which is when a keeper notices a Campbell with a dirty, pasted vent, a swollen abdomen or a withdrawn manner, the early signs that a laying problem such as internal laying or infection may be developing and a vet should be consulted.
Parasites, water and feet for an active forager
Khaki Campbells are tireless foragers, and that virtue loads their parasite exposure. Dabbling and grazing the same ground through a season builds intestinal worm burdens that show as fading condition and falling lay, so droppings checks through a vet, with treatment aimed at findings and run rotation where space allows, form the flock's parasite program. Bathing water follows the same logic as drinking water: deep enough for head immersion, changed before it becomes a bacterial broth, because eye and sinus irritation in ducks tracks water quality faithfully. Feet are checked when birds are handled, since even this lighter breed develops sole sores on abrasive ground, and a limping layer is a bird to examine the same day rather than at the weekend.
Laying records as a health instrument
The Campbell keeper's most useful preventive tool is a simple laying and health record, because a laying duck announces trouble in numbers first: a flock total sliding over a fortnight, one nest consistently producing soft shells, a bird whose weight in the hand is falling while her appetite holds. Review those notes with a poultry vet at intervals and the vaccination question, feed adequacy and parasite control all get decided from evidence. Seek help promptly for a Campbell who strains repeatedly without producing an egg, stands penguin-like with a swollen belly, or stops eating entirely. Filing laying notes, droppings results and vet guidance in each bird's KinsLe Pet Passport makes the Campbell flock's productive health easy to follow season over season.