Nguyễn Thị Kim Khang * , Sơn Ngọc Thái , Phạm Ngọc Du Đỗ Võ Anh Khoa

* Tác giả liên hệ (ntkkhang@ctu.edu.vn)

Abstract

The study was done to evaluate the effect of different levels of beta-glucan on egg performance and egg quality of Hisex Brown laying hens. A completely randomized experiment with a total of 160 Hisex Brown laying hens at 33 weeks of age was divided into 4 dietary treatments and 10 replications. The control treatment was a basal diet supplemented with 3 different levels of beta-glucan powder at 0.025; 0.05 and 0.075%, leading to 3 more dietary treatments. Each dietary treatment was repeated 10 times. The results showed that no significant differences were found among treatments on egg performance, percentages of laying rate and cull egg (p>0.05), even though these dietary treatments had higher egg performance (65.42-66.07 eggs/layer), percentages of laying rate (94.81-95.75%) as well as cull egg (0.77-1.99%) compared to those of control (64.83 eggs/layer; 93.94% and 3.31%, respectively). Similarly, there were no significant differences among treatments in feed consumption and feed efficiency (p>0.05). Supplementing beta-glucan powder at 0.05% improved egg weight and egg yolk color and increased economic benefits (19.08%) compared to other treatments.
Keywords: Beta-glucan, hens, laying rate, egg quality

Tóm tắt

Thí nghiệm được tiến hành nhằm xác định mức bổ sung beta-glucan thích hợp trong khẩu phần thức ăn (TA) lên năng suất và chất lượng trứng ở gà Hisex Brown giai đoạn từ 33 đến 42 tuần tuổi. Một trăm sáu mươi gà mái được bố trí theo thể thức hoàn toàn ngẫu nhiên với 4 nghiệm thức (NT) tương ứng với 4 khẩu phần lần lượt là đối chứng (ĐC): khẩu phần cơ sở (KPCS); BG0,025: KPCS + 0,025% beta-glucan; BG0,05: KPCS + 0,05% beta-glucan và BG0,075: KPCS + 0,075% beta-glucan, thí nghiệm được lặp lại 10 lần, mỗi lần lặp lại là 4 gà mái. Kết quả thí nghiệm cho thấy không có sự khác biệt giữa các NT về năng suất trứng, tỷ lệ đẻ và tỷ lệ trứng loại (p>0,05), mặc dù ở các khẩu phần bổ sung beta-glucan có năng suất trứng (65,42 – 66,07 quả/mái) và tỷ lệ đẻ (94,81 – 95,75%) cao hơn so với ĐC (64,83 quả/mái và 93,94%) (p>0,05), bên cạnh đó tỷ lệ trứng loại thấp 0,77-1,97% so với 3,31% ở ĐC. Tương tự, không có sự khác biệt có ý nghĩa thống kê giữa các NT về tiêu tốn thức ăn (g/gà/ngày) và tiêu tốn thức ăn (g/trứng) (p>0,05). Bổ sung beta-glucan ở mức 0,05% cải thiện được KL trứng và màu lòng đỏ trứng so với các NT khác (p<0,05), đồng thời có hiệu quả kinh tế cao hơn (19,08%) so với ĐC và các NT còn lại.
Từ khóa: Beta-glucan, gà đẻ, tỷ lệ đẻ, chất lượng trứng

Article Details

Tài liệu tham khảo

Abubakar A, Tukur HM, Sekoni AA, Hassan WA (2007): Performance and egg quality characteristics of laying birds fed diets containing rice bran with and without yeast supplementation. Asian J Anim Sci 1:1-9.

Ayanwale BA, Kpe M, Ayanwale VA (2006): The effect of supplementing Saccharomyces cerevisiae in the diets on egg laying and egg quality characteristics of pullets. Int J Poult Sci 5: 759-763.

Berry WD, Lui P (2000): Egg production, egg shell quality and bone parameters in broiler breeder hens receiving Bio Mos and Eggshell 49. Poultry Sci 79 (Suppl1):124 (Abstr).

Cox CM, Sumners LH, Kim S, McElroy AP, Bedford MR (2010): Immune responses to dietary beta-glucan in broiler chicks during an Eimeria challenge. Poutry Sci 89: 2597-607.

Day EJ, Dilworth BC, Omar S (1987): Effect of varying levels of phosphorus and live yeast culture in caged layer diets. Poultry Sci 66: 1402-1410.

Guo Y, Ali RA, Qureshi AM (2003): The influence of β-glucan on immune response in broiler chicks. Immunopharmacol Immunotoxicol 25: 461–472.

Gürbüz E, Balevi T, Kurtoğlu V, Öznurlu Y (2011): Use of yeast cell walls and Yucca schidigera extract in layer hens’ diet. Ital J Anim Sci 10: 134-138.

Huff GR, Huff WE, Rath NC, Tellez G (2006): Limited treatment with β-1,3/1,6-glucan improves production values of broiler chickens challenged with Escherichia coli. Poult Sci 85: 613-618.

Li J, Li DF, Xing JJ, Cheng ZB, Lai CH (2006): Effects of β-glucan exctracted fom Saccharomyces cerevisiae on growth performance, and immunological and somatotropic responses of pigs challenged with Esherichia coli lipopolysaccharide. J Anim Sci 84: 2374-2381.

Lowry VK, Farnell MB, Ferro PJ, Swaggerty CL, Bahl A, Kogut MH (2005): Purified β-glucan as an biotic feed additive upregulates the innate immune response in immature chickens against Salmonella enterica serovar. enteritidis. Int J Food Microbiol 98: 309.

McKillop N, MacLsaac J, Rathgeber B (2006): Feeding White Leghorn hens yeast beta-glucans to influence egg quality. Poultry Sci 85 (Suppl): 101 (Abstr).

Mohiti Asli M, Hosseini SA, Lotfollahian H, Shariatmadan F (2007): Effect of probiotics, yeast, vitamin E and vitamin C supplements on performance and immune response of laying hen during high environmental temperature. Int J Poult Sci 6: 895-900.

Nguyễn Thị Kim Khang, Lê Thanh Phương, Đặng Thị Bích Vân, Nguyễn Nhựt Xuân Dung (2011): Ảnh hưởng của các khẩu phần beta-glucan lên năng suất sinh trưởng và sức đề kháng của gà Hisex Brown. KHKT Chăn nuôi 7: 15-21.

Özek K (2012): Effects of dietary herbal essential oil mixture and/or mannan-oligosaccharide supplementation on laying performance, some serum biochemical markers and humoral immunity in laying hens exposed to heat.Revue Med Vet 163: 153-159.

Stanley VG, Brown C, Sefton T (2000): Single and combined effects of dietary protease and mannanoligosaccharide on the performance of laying hens. Poultry Sci 79 (Suppl 1): 62 (Abstr).

Vetvicka V, Oliveira C (2014): β(1-3)(1-6)-D-Glucan with strong effects on immune status in chicken: potential importance for efficiency of commercial farming. Journal of Nutrition and Health Sciences 1: 1-6.

Yalçın S, Özsoy B, Erol H, Yalçın S (2008): Yeast culture supplementation to laying hen diets containing soybean meal or sunflower seed meal and its effect on performance, egg quality traits and blood chemistry. J Appl Poult Res 17: 229-236.

Yalcin S, Yalcin S, Cakin K, Eltan O, Dagasan L (2010): Effects of dietary yeast autolysate (Saccharomyces cerevisiae) on performance, egg traits, egg cholesterol content, egg yolk fatty acid composition and humoral immune response of laying hens. J Sci Food & Agri 90: 1695-1701.

Yalcin S, Yalçin S, Onbaşilar I, Eser S, Şahin A (2014): Effects of dietary yeast cell wall on performance, egg quality and humoral immune response in laying hens. Ankara Üniv Vet Fak Derg 61: 289-294.

Yousefi M, Karkoodi K (2007): Effect of probiotic ThepaxR and Saccharomyces cerevisiae supplementation on performance and egg quality of laying hens. Int. J Poult Sci 6: 52-54.