Why does my puppy refuse dry food but beg for table scraps like chicken?

Puppies develop food preferences early, and a sudden switch from whatever he ate at the farm or pet store to an unfamiliar kibble is often enough to make him hesitate, even when he's plenty hungry. The American Kennel Club Canine Health Foundation notes that abrupt diet changes are one of the most common triggers for short-term appetite loss and mild digestive upset in puppies, which is why a gradual transition over 5 to 7 days, mixing increasing amounts of new food into the old, is recommended rather than an overnight swap (AKC Canine Health Foundation, n.d.).

Chicken and other high-value table scraps are simply more rewarding than dry kibble in texture, smell, and fat content, so a puppy who has tasted them will naturally hold out for more instead of settling for pellets. Cornell Riney Canine Health Center points out that intermittent hand-feeding of tastier items can inadvertently teach a puppy that refusing his bowl gets him something better, turning a transition hiccup into a learned habit within days (Cornell Riney Canine Health Center, n.d.).

Is it normal for a new puppy to skip meals during his first week home?

Some appetite dip in the first 48 to 72 hours after rehoming is common and expected. The stress of leaving littermates, riding in a car, and meeting a new family can suppress a young dog's interest in food even when nothing is medically wrong, and the ASPCA advises giving a newly adopted puppy a quiet, predictable space and a consistent feeding schedule rather than free access to food during this adjustment window (ASPCA, n.d.).

A single missed meal in an otherwise bright, playful, well-hydrated puppy is rarely an emergency. The Merck Veterinary Manual notes that healthy puppies can tolerate short fasting periods without harm, but persistent refusal to eat for more than 24 hours, especially paired with lethargy or vomiting, warrants a veterinary exam because young puppies have limited fat and glycogen reserves and can develop hypoglycemia faster than adult dogs (Merck Veterinary Manual, 2023).

What food should I actually be feeding an 8-week-old Border Collie puppy?

At 8 weeks old, a Border Collie is still in a rapid growth phase and needs a diet formulated specifically for puppies, not adult maintenance food, because growth formulas provide higher levels of protein, fat, calcium, and phosphorus tailored to skeletal development. The World Small Animal Veterinary Association's global nutrition guidelines recommend choosing a commercial diet that carries an AAFCO or FEDIAF statement confirming it's complete and balanced for growth, and ideally one backed by a manufacturer that employs a board-certified veterinary nutritionist (WSAVA, 2021).

Because this puppy's prior diet is unknown, contacting the farm or the pet store he came from to ask what he was eating is a reasonable first step, since matching his existing food even briefly reduces gastrointestinal stress during the move. Once he's settled, owners can transition him onto a chosen large-breed puppy formula appropriate for a working breed like a Border Collie, which typically reaches 30 to 45 pounds as an adult and benefits from controlled-growth nutrition to protect developing joints (WSAVA, 2021).

Could an underlying health problem explain why he won't eat?

Intestinal parasites are a leading cause of poor appetite in puppies with unclear origins, particularly those recently sourced from farm environments where exposure to roundworms, hookworms, or coccidia is more likely. The Companion Animal Parasite Council recommends fecal testing and deworming for all puppies starting at 2 to 3 weeks of age and repeated every 2 to 3 weeks until 8 weeks, so a puppy of unknown deworming history should have a fecal exam scheduled promptly (CAPC, n.d.).

Dental discomfort from erupting teeth, mild viral infections, or stress-related gastrointestinal upset can also blunt appetite in young dogs. The AVMA recommends a veterinary wellness visit within the first few days of bringing home any new puppy specifically to rule out parasites, congenital issues, and infectious disease before assuming a feeding problem is purely behavioral (AVMA, n.d.).

How do vets figure out whether this is picky eating or something more serious?

A veterinarian evaluating a puppy with reduced appetite will typically start with a full physical exam, weight check against breed growth curves, and a fecal parasite screen, since these three steps catch the majority of common causes in puppies under 12 weeks old. Cornell Riney Canine Health Center notes that tracking body weight weekly during the first few months is one of the simplest ways owners and vets together can confirm a puppy is thriving despite a fussy relationship with the food bowl (Cornell Riney Canine Health Center, n.d.).

If the physical exam and stool sample are unremarkable and the puppy is active, hydrated, and gaining weight on schedule, most veterinarians will diagnose the issue as transitional or learned picky eating rather than a medical condition. Blood work or imaging is generally reserved for puppies showing additional red flags like vomiting, diarrhea, weight loss, or lethargy alongside the appetite change (Merck Veterinary Manual, 2023).

What's the best way to get a picky puppy back on a regular feeding schedule?

Switching from free-feeding to two to three scheduled meals a day, offered for about 15 to 20 minutes before the bowl is picked up regardless of how much was eaten, helps puppies learn that mealtime is finite and food won't be replaced with something better if they wait. The ASPCA recommends this structured approach specifically for puppies who graze or hold out, since it re-establishes hunger cues without resorting to constant food changes (ASPCA, n.d.).

Warming kibble slightly, adding a small amount of warm water or low-sodium broth, or lightly mixing in a spoonful of the current wet puppy food can increase aroma and palatability without turning every meal into a table-scrap negotiation. Owners should avoid hand-feeding or offering chicken as a replacement when kibble is refused, since this reinforces the exact behavior they're trying to break, according to guidance from Cornell Riney Canine Health Center on establishing feeding routines in young dogs (Cornell Riney Canine Health Center, n.d.).

How much weight loss or missed food is too much for a growing puppy?

Growing puppies have far less metabolic reserve than adult dogs, so the tolerance window for skipped meals is narrower. The Merck Veterinary Manual advises that any puppy under 12 weeks old who refuses all food for more than 24 hours, or who shows weakness, tremors, or disorientation from suspected hypoglycemia, needs same-day veterinary attention rather than a wait-and-see approach (Merck Veterinary Manual, 2023).

A simple home tracking method — weighing the puppy on a kitchen scale weekly and logging it against expected growth for the breed — gives owners an early warning system long before a vet visit is needed. Border Collies typically gain steadily through 6 months of age, and a flat or declining weight trend over more than a week, even with normal energy, is a reason to call the veterinarian rather than continue troubleshooting food brands alone (AKC Canine Health Foundation, n.d.).