Evaluasi Kebutuhan Nutrien dan Suplementasi Zinc untuk Calon Galur Ayam IPB-D2 Fase Pre-layer

Abstract

This study aimed to evaluate nutrient requirements and zinc supplementation for IPB D-2 pre-layer chicken line candidates on performance, blood profile, and blood malondialdehyde (MDA). This study used 200 of 16 weeks IPB-D2 chickens line candidates reared until 19 weeks of age (pre-layer phase). This study used a completely randomized design (CRD) with 2 treatments and 10 replications. The treatment rations were formulated to fill the chicken nutrient requirements according to Lohman (2020) without the addition of Zinc and with the addition of 120 ppm Zinc. The data were analyzed using the T test. The results showed that the ration supplemented with 120 ppm zinc did not significantly affect performance, but it was able to increase body weight uniformity. The 120-ppm Zinc supplementation significantly (p<0.05) decreased erythrocytes, however it tended to lower blood MDA. In conclusion, 120 ppm Zinc supplementation in the ration is sufficient to meet the nutrient requirement of IPB-D2 chicken line candidates in the pre-layer phase.
 Key words: IPB-D2 chicken line candidates, Zinc, performance, blood profile, MDA

Effects of Supplementation with Different Nutrient Contents of Vitamin E Diets on the Performance and Health Status of IPB-D3 Candidate Chicken Strains

“…This is in accordance with (Fahrina et al, 2021) nutrient contents on the increase in basophils (Salsabila et al, 2022). The values of lymphocytes and basophils in this study compared with those in (Falah et al, 2022) are still within the normal range and lower than the basophil value reported by (Salsabila et al, 2022), which is 1.91%-2.02%. A low value of lymphocytes and basophils indicates that the chicken is in a healthy condition, while a high value indicates that the chicken is in an unhealthy condition.…”

“…Temperature and environmental factors can affect leukocyte differentiation. The differentiation values of other leukocytes, such as heterophils, eusinophils and monocytes, are still within the normal range according to the standard of (Falah et al, 2022) but the research of (Salsabila et al, 2022) on heterophils and monocytes of 12week-old IPB-D3 chickens had lower values than this study. Heterophils and monocytes are important components of the immune system that work quickly to kill pathogens and direct signals to the body's immune response mechanism, which indicates that the immune system of IPB-D3 chicken candidate strains is more advanced.…”

“…The greater the diet of heterophils to lymphocytes in chickens is, the greater the stress level. (Falah et al, 2022) reported that the standard diet of heterophils to lymphocytes is 0.2 for low stress, 0.5 for moderate stress, and 0.8 for high stress. The results showed that the IPB-D3 chicken strains in this study exhibited moderate stress in the range of 0.47-0.56.…”

Comparison of carcass and non-carcass weight percentage between IPB-D2 chickens and IPB-D3 chickens at different slaughter age

“…This is because chickens with high slaughter weight in the grower phase will have a lower potential for decreased egg production and high mortality in the layer phase. This statement is [31] that excess weight growth during growth negatively correlates with egg production performance.…”