The Effects of Replacing Fish Meal with Skipjack Tuna Offal Meal on the Growth Performance and Carcase Quality OF Local Chickens
The Effects of Replacing Fish Meal with Skipjack Tuna Offal Meal on the Growth Performance and Carcase Quality OF Local Chickens
Srisukmawati Zainudin1*, Hartutik2, Edhy Sudjarwo2, Osfar Sjofjan2
ABSTRACT
The aim of this research was to evaluate the impact of using steamed skipjack fish offal meal (SSFO) as a substitute for fishmeal in feed on the production performance and carcass quality of local chickens. The research method was a field experiment with a completely randomized design (CRD) with 5 treatments and 5 replications, resulting in 25 treatment units. A total of 25 pen units, each measuring 1 m × 0.5 m × 0.5 m, were used. Each pen was equipped with a feed and water bunk, and 250-day-old chicks (DOCs) of local chickens were used to assess body weight variability and were randomly assigned to the prepared pen units. During the experiment, the temperature ranged from 32°C in the first few weeks and was reduced to 27°C, with a humidity ranging from 77–78%. The treatments were as follows: T0 (10% fish meal + 0% SSFO in feed); T1 (7.5% fish meal + 2.5% SSFO in feed); T2 (5% fish meal + 5% SSFO in feed); T3 (2.5% fish meal + 7.5% SSFO in feed); and T4 (0% fish meal + 10% SSFO in feed). The observed variables were feed consumption, body weight gain, feed conversion, IOFC value, carcass weight, carcass percentage, meat protein content, and meat fat content of local chickens. The results indicated that substituting fish meal with SSFO significantly increased the final body weight and carcass weight (P<0.01) while reducing the feed conversion ratio (P<0.01). The best performance was observed with the T2 treatment (5% SSFO in feed). These findings suggest that SSFO can effectively replace up to 5% of fish meal in poultry feed, offering a cost-effective alternative that could reduce feed costs and increase profitability in the poultry industry. Furthermore, the use of SSFO, a byproduct, promotes sustainability and resource efficiency within the industry.
Keywords | Carcase quality, Growth performance, Local chicken, Skipjack tuna
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