EFFECT OF ADDING DIFFERENT LEVELS OF TAURINE ON THE PRODUCTIVE PERFORMANCE OF LAYING HENS
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The study aimed to investigate the impact of different levels of taurine acid on the productive characteristics of laying hens. The experiment took place in a laying hen breeding hall with a cage system, which is part of the animal field at the Department of Animal Production, College of Agriculture, Al-Anbar University. The duration of the experiment was 12 weeks, divided into three periods of 28 days each. A total of 90 ISA Brown laying hens, aged 15 weeks, were used in the study. The hens were assigned to five treatments, with six duplicates per treatment, resulting in 18 hens per duplicate. The treatments were as follows: The first treatment control (T1) contains no additives. In contrast, the second treatment (T2) includes 400 milligrams of taurine per kilogram of feed, the third treatment (T3) adds 600 milligrams of taurine per kilogram of feed, the fourth treatment (T4) adds 800 milligrams of taurine per kilogram of feed, and the fifth treatment (T5) incorporates 300 milligrams of vitamin C per kilogram of feed into the mixture. The results indicated a significant decline (P≤0.05) in the egg production rate, as measured by HH%, and in the cumulative number of eggs based on HH% during the third transaction (T3) when compared to the control transaction and other transactions. Additionally, there was a noticeable decrease in egg weight during the third period in T4 compared to the control group. The results demonstrated a significant decline (P≤0.05) in egg size during the third period for the T3 treatment when compared to the control group and other treatments. Additionally, there was a notable decrease (P≤0.05) in the food conversion coefficient (grams of food per egg) during the third period for T3 in comparison with the control and other treatments. Based on this study, we conclude that taurine did not affect the productive characteristics of laying hens.
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Copyright (c) 2025 Hazem Jassim Mohammed, Zaid Jameel M. Saed (Author)
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