Nghiên cứu tình hình nhiễm giun tròn đường tiêu hóa trên chó và hiệu quả tẩy trừ giun tròn bằng hạt bí ngô (Cucurbita pepo) tại Long Hồ và Tam Bình
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Abstract
The study was conducted on 334 dog fecal samples, and nematode eggs were determined by the Mc Master egg counting method. Three treatments were arranged in a completely randomized design: NT1 (control) – no deworming, NT2 (1 g BN/1 kg dog), and NT3 (1.5 g BN/1 kg dog). The results showed that 281 samples (81.13%) had infected roundworm eggs with all three infection intensities. The low-intensity level (+) was the most common. Dogs under one year of age had a slightly higher infection rate (84.48%) compared to those aged one year and above (83.13%). Male dogs had a higher infection rate (85.56%) than females (83.31%). However, neither age nor sex had a statistically significant effect on infection rates (P > 0.05). Free-roaming dogs had a higher infection rate (93.93%) compared to confined dogs (66.67%), and local breeds (91.45%) had higher infection rates than exotic breeds (67.00%). Both factors significantly affected the infection rate (P < 0.05). The anthelmintic efficacy of pumpkin seed powder was highest in NT3 (80.00%), followed by NT2 (60.00%), and NT1 (0.00%).
Tóm tắt
Nghiên cứu thực hiện trên 334 mẫu phân chó và trứng giun tròn được xác định bằng phương pháp đếm trứng giun trên buồng đếm Mc Master. Bố trí ngẫu nhiên 3 nghiệm thức (NT): NT1(đối chứng) không tẩy trừ, NT2 (1 gBN/1 kg chó), NT3 (1,5 gBN/1 kg chó). Kết quả thu được có 281 mẫu nhiễm giun tròn, tương ứng 81,13% ở cả 3 cường độ nhiễm, cường độ (+) chiếm nhiều nhất. Chó <1 năm tuổi có tỷ lệ nhiễm 84,48% cao hơn chó ≥ 1 năm tuổi 83,13%, tỷ lệ nhiễm giun tròn ở chó đực (85,56%) cao hơn ở chó cái (83,31%), cả hai yếu tố lứa tuổi và giới tính đều không ảnh hưởng đến tỷ lệ nhiễm (P > 0,05). Chó thả rông có tỷ lệ nhiễm cao hơn nuôi nhốt (93,93% > 66,67%), tỷ lệ nhiễm ở chó giống nội cao hơn ở chó giống ngoại (91,45% > 67,00%), cả hai yếu tố đều ảnh hưởng đến tỷ lệ nhiễm (P < 0,05). Hiệu quả tẩy trừ giun tròn bằng bột hạt bí ngô cao nhất ở NT3 (80,00%), NT2 (60,00%) và NT1 đối chứng (0,00%).
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