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Ảnh hưởng của bổ sung vi khoáng mangan và kẽm vào khẩu phần lên năng suất và chất lượng trứng gà Hisex Brown
Can Tho University Journal of Science
An experiment was carried out on 540 Hisex Brown laying hens (35 weeks of age) whose design consisted of two factors and 5 replicates. The first factor was Mn (0, 80, 120 ppm) and the second was Zn (0, 40, 60 ppm). Results showed that egg production was highest for the Mn120 treatment (90.62%) and lowest for the control (84.51%) (P<0.05). Broken egg percentage was lowest for the Mn120 treatment (1.24%) and highest for the control (4.71%) (P<0.05). The yolk proportion of the Mn80 treatmentdoi:10.22144/ctu.jvn.2016.579 fatcat:3shszpgewnhytnlsf3mq7rt2ze