Author:
Rachmawati Diana,Elfitasari Tita,Samidjan Istiyanto,Nurhayati Dewi,Har Riyadi Putut
Abstract
The high consumer demand in Indonesia encourages catfish farmers to conduct an intensive culture. A low feed efficiency mainly occurs in cultivating Sangkuriang catfish resulting in poor growth. This condition might be caused by low lysine content, as lysine is an essential amino acid that the fish cannot synthesize. The present study aimed to investigate the effect of lysine supplementation in feed on protein digestibility, feed efficiency, and growth of Sangkuriang catfish (Clarias gariepinus var. Sangkuriang) fingerlings. The study used 270 Sangkuriang catfish with an average wet weight of 7.54 ± 0.13 g/fish. The experimental feed contained protein, energy, and amino acid, and then various doses of lysine were added to the experimental feed: (1) 0.0%, (2) 0.5%, (3) 1.0%, (4) 1.5%, (5) 2.0%, and (6) 2.5%. Weight gain (WG), protein digestibility (ADCp), the efficiency of feed utilization (EFU), relative growth rate (RGR), feed conversion ratio (FCR), protein efficiency ratio (PER), and protein retention (PR) of catfish were evaluated for 8 weeks. The results found that the supplementation of lysine in feed significantly (P < 0.05) influenced WG, ADCp, EFU, RGR, FCR, PER, and PR of Sangkuriang catfish fingerling. However, there was no significant effect (P > 0.05) on the SR of Sangkuriang catfish fingerling. The supplementation of 1% lysine/kg feed was the optimal dose to improve the feed efficiency and growth of Sangkuriang catfish fingerlings by 83.79% and 3.94%/day, respectively. Therefore, the supplementation of lysine could increase Sangkuriang catfish production.
Publisher
Universiti Putra Malaysia
Reference39 articles.
1. Ahmed, I., & Khan, M. A. (2004). Dietary lysine requirement of fingerling Indian major carp, Cirrhinus mrigala (Hamilton). Aquaculture, 235(1-4), 499-511. https://doi.org/10.1016/j.aquaculture.2003.12.009
2. Akiyama, D. M., Domny, W. G., & Lawrence, A. L. (1991). Penaeid shrimp nutrition for the commercial feed industry: Revised. American Soybean Association.
3. Bicudo, A. J. A., Sado, R., & Cyrino, J. E. P. (2009). Dietary lysine requirement of juvenile pacu Piaractus mesopotamicus (Holmberg, 1887). Aquaculture, 297(1-4), 151-156. https://doi.org/10.1016/j.aquaculture.2009.09.031
4. Borlongan, I. G., & Coloso, R. M. (1993). Requirement of juvenile milk fish (Chanos chanos) for essential amino acid. Journal of Nutrition, 123(1), 125-132. https://doi.org/10.1093/jn/123.1.125
5. Bureau, D. P., & Encarnacao, P. M. (2006). Adequately defining the amino acid requirements of fish: The case example of lysine. https://nutricionacuicola.uanl.mx/index.php/acu/article/view/159/157
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献