Effects of Stocking Density on Growth Performanceand Body Surface Temperature in Broilers

Received: 17-04-2023

Accepted: 29-08-2023

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Issue: Vol. 21 No. 9 (2023)

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CHĂN NUÔI – THÚ Y – THỦY SẢN

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Tung, C., & Nhan, N. (2024). Effects of Stocking Density on Growth Performanceand Body Surface Temperature in Broilers. Vietnam Journal of Agricultural Sciences, 21(9), 1150–1158. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/1187

Effects of Stocking Density on Growth Performanceand Body Surface Temperature in Broilers

Che Minh Tung (*) 1 , Nguyen Thi My Nhan 1

  • 1 Khoa Chăn nuôi Thú y, Trường Đại học Nông Lâm thành phố Hồ Chí Minh

    • Keywords

    Body surface temperature, broiler, feed conversion ratio, stocking density

    Abstract


    The objective of this study was to evaluate effect of stocking density on growth performance and surface temperature of different body parts in broilers. A total of 1000 one-day-old broiler chicks (Ross 308) were assigned to two treatments in a completely randomized design. The stocking density treaments were (1) 9 chicks/m2(SD 9) and (2) 13 chicks/m2(SD 13). Each treatment had 20 replicate pens (50% female and 50% male/pen). The experimental results showed that there was no difference in average daily weight gain between two treatments (P >0.05). However, broilers in the SD 9 group had a better feed conversion ratio than those in the SD 13 group (P = 0.048). The survival rate of broilers in the SD 9 group (99.8%) was greater (P <0.001) than that of broilers in the SD 13 group (95.8%). Moreover, the body surface temperature of broilers in the SD 9 group (32,3C) was much lower (P = 0.003) than that of broilers in the SD 13 group (36.0C). A similar trend was also observed for the shank and neck surface temperature of broilers (P <0.05). Briefly, the stocking density of 9 broilers/m2improved the feed conversion ratio, survival rate and body surface temperature of broilers as compared with the stocking density of 13 broilers/m2.

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