Wound Healing in Gamecocks 

Wound Healing in Gamecocks 
By Dr. P (Pongsapak Pitakpol, DVM) and Prof. Kaew (Asst. Prof. Sompoth Weerakul, DVM, PhD)

Gamecocks frequently face injury issues. In some cases, these become chronic, leading to "bumblefoot" or abscesses (locally known as Pruad) in various areas such as the chest, face, and footpad. Professor Kaew noted in the "Gamecock Doctor’s Manual" that these are sometimes called Nhor Long Puen (ground sores), but clinical academic terms are essential for veterinarians to ensure a universal understanding, as local dialects vary.

The Biological Difference in Avian Healing
When an injury or bruising occurs, birds undergo a phase of fibrous tissue formation (a type of connective tissue) more extensively than other animals. Studies in chickens show they produce very low levels of protease enzymes. Because proteases are responsible for breaking down peptide bonds—and connective tissue is primarily composed of peptides and collagen—birds have a limited ability to digest facial adhesions or fibrous lumps.

Consequently, wounds in birds often turn into hard fibrous masses. When pus forms, it is typically "cheesy" (caseous necrosis) rather than liquid. In mammals, proteases aid in autolytic debridement (the body’s natural process of removing dead tissue). In birds, inflammatory cells like macrophages and PMNs secrete these enzymes early on, but the deficiency means that while swelling hardens quickly as part of the healing process, the tissue takes a long time to return to its normal shape.

The "Double-Edged Sword" of Fibrous Tissue
There is an evolutionary advantage to this! In birds and gamecocks, this rapid fibrous response allows wounds—especially bone fractures—to stabilize quickly. It provides enough structural strength for the bird to survive and move even before the wound is fully healed or the bone is completely fused. This mechanism also limits the spread of infection or severity.

However, this often makes owners complacent, leading them to delay professional treatment. While it reduces pain from bone movement, it results in slow healing and long-term hard lumps compared to other animals. For veterinarians, this makes surgical intervention difficult, as they must dissect thick fibrous masses and "callus" (calcium deposits) that often form away from the ideal alignment.


Evaluating Chronic Wounds: The 4 Pillars
Most gamecock wounds presented to vets are chronic. Healing them perfectly is a challenge. Veterinarians evaluate these cases based on four criteria:

Healing Potential: Can the bird actually heal? For example, in footpad abscesses (bumblefoot), we can clean the wound and remove necrotic tissue to create a "fresh" wound, but the foot may never look exactly as it did originally. In chest abscesses, damage to the pectoral muscle may cause a lack of coordination with the supracoracoideus muscle, causing the bird to lose its "flight form" during combat.
Expectation Management: One cannot expect immediate healing if the wound has spread or if fibrous splinters have invaded muscles, joints, cartilage, or synovial fluid. If it has reached the shanks or joints, surgery may no longer be an option.
The Root Cause: Identifying the cause helps the vet determine the prognosis.
Impeding Factors: This includes internal systemic issues such as malnutrition (lack of Vitamin C, Iron, or Protein), liver disease, immunocompromise, age, and poor blood supply to the wound site—a common issue in avian species.

The Phases of Avian Wound Healing
Inflammatory Phase: Occurs within the first 12 hours. It begins with vasoconstriction to control bleeding (Coagulation Phase), followed by vasodilation within 30 minutes. In birds, heterophils and monocytes arrive within 2–5 hours, followed later by lymphocytes and macrophages.
Fibroplastic / Proliferation Phase: Starts around day 3–4. Fibroblasts create collagen in the form of microfibrils, forming granulation tissue. Epithelialization (skin growth) usually occurs within a week for acute wounds. In chronic gamecock cases, this takes much longer, often requiring the vet to "freshen" the wound surgically. This phase can last 14–15 days.
Remodeling / Maturation Phase: The final stage where fibroblasts decrease and collagen is strengthened. Due to the high volume of connective tissue and low protease levels mentioned earlier, avian tissue rarely returns to 100% normalcy.
Clinical Management
At Kwan-Kham Animal Hospital, we often use proteolytic enzymes or specific topical medications to slow down the excessive fibroplastic phase. This gives the "Remodeling Phase" a better chance to reorganize the tissue correctly.

Large wounds in birds also form a "Scab"—a leathery, dark, soft sheet—which actually hinders healing more than the typical dry scabs we see in humans. Therefore, surgical closure (stitches) or proper bandaging is vital to prevent this "scab" from blocking the healing process and to stop secondary infections.

Summary: Do not wait when your gamecock is injured. Immediate veterinary care offers the best chance for a full recovery and prevents the complications of chronic, permanent fibrous lumps.