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To achieve the total savings of 7%, it is recommended that producers combine the feeding table with rigorous management practices.

Embrapa Breakthrough Slashes Tilapia Production Costs Through Precision Feeding

Click on the flag for more information about Brazil BRAZIL
Friday, May 15, 2026, 06:00 (GMT + 9)

Innovative feeding protocols developed in Tocantins allow fish farmers to maintain high yields while significantly reducing expensive feed waste

A pioneering technology developed by Embrapa Fisheries and Aquaculture in Palmas, Tocantins, is set to transform the efficiency of tilapia farming in net cages. By validating a feeding table specifically adapted to local environmental conditions, researchers have demonstrated that producers can reduce feeding costs by up to 7%. This breakthrough was detailed in a new Technical Bulletin released by the institution, aimed at optimizing the predominant production system in the region.

The official launch of this technology is scheduled for Thursday, May 14, during Agrotins. The presentation will take place at the Fisheries and Aquaculture Pavilion as part of the VII Technical Meeting on fish production in Tocantins reservoirs.

Localized Data Overcomes Regional Discrepancies

According to lead researcher Ana Paula Oeda, this marks the first time a feeding schedule has been tailored specifically to the climate and water conditions of Tocantins. Previously, local farmers relied on data modeled after the Serra da Mesa and Cana Brava reservoirs in Goiás, which did not accurately reflect the physiological needs of fish in Tocantins.

The study proved that the amount of feed provided can be cut by 10% without any negative impact on growth, survival, or carcass yield. In an industry where feed represents roughly 80% of total expenses, this adjustment is a game-changer for profitability. Under the new protocol, the production cost per kilogram of fish drops from $7.00 to $6.51.

Weight growth curve of tilapia (210 to 936 g) produced in net-pens in the Lajeado reservoir.

Proven Results in the Lajeado Reservoir

The research team conducted extensive experiments in the Lajeado reservoir, comparing traditional methods against the optimized protocol. The results showed remarkable stability in fish performance:

  • Weight Gain: Fish grew from 210 g to 936 g over a period of 119 days.

  • Survival Rate: Maintained at a high 97%.

  • Feed Conversion Ratio: Averaged 1.7.

  • Protocol Details: The table provides weekly guidelines for fish between 190 g and over 1 kg, utilizing four daily meals with 32% protein feed.

Scaling Potential for the Future

While Tocantins currently produces a modest 700 tons of tilapia as of 2024, the state’s untapped potential is massive. Experts estimate that the region could eventually produce up to 290,000 tons annually using net-pen systems.

Ana Paula Oeda emphasized that while this technology is highly effective, it serves as a foundation that should be adjusted based on specific local factors like stocking density and water quality. To achieve the full 7% savings, producers are encouraged to combine the feeding table with rigorous management practices, such as fixed feeding times, periodic biometrics, and the use of specialized feeders to prevent leftovers.


🇯🇵 日本語 (Japanese)

エムブラパの画期的な進展により精密給餌を通じたティラピア生産コストが大幅に削減

トカンティンス州で開発された革新的な給餌プロトコルにより、養殖業者は高価な飼料の無駄を大幅に削減しながら高い収穫量を維持することが可能に

トカンティンス州パルマスにあるエムブラパ漁業・養殖業が開発した先駆的な技術は、ネットケージ(網いけす)によるティラピア養殖の効率を劇的に変えようとしています。地域の環境条件に特別に適応させた給餌表を検証した結果、研究者たちは給餌コストを最大7%削減できることを実証しました。この画期的な進展は、同機関から無料で公開された新しい技術公報に詳述されており、州内の主要な生産システムの最適化を目的としています。

この技術の公式発表は、5月14日(木)アグロティンス期間中に行われる予定です。発表は、トカンティンス州の貯水池における魚類生産に関する第7回技術会議の一環として、漁業・養殖業パビリオンで実施されます。

地域限定のデータが地域間の不一致を克服

主任研究員のアナ・パウラ・オエダ氏によると、給餌スケジュールがトカンティンス州の気候と水質条件に特化して調整されたのは今回が初めてです。これまで、現地の養殖業者はゴイアス州セラ・ダ・メサカナ・ブラバの貯水池をモデルにしたデータに頼っていましたが、これらはトカンティンス州の魚の生理的ニーズを正確に反映していませんでした。

研究により、成長、生存率、またはと体歩留まりに悪影響を与えることなく、給餌量を10%削減できることが証明されました。飼料が総費用の約80%を占めるこの業界において、この調整は収益性の決定要因となります。新しいプロトコルでは、魚1キログラムあたりの生産コストは7.00ドルから6.51ドルに低下します。

ラジェアド貯水池での実証済み結果

研究チームは、ラジェアド貯水池で広範な実験を行い、従来の方法と最適化されたプロトコルを比較しました。その結果、魚のパフォーマンスに顕著な安定性が見られました。

  • 体重増加: 魚は119日間210 gから936 gまで成長しました。

  • 生存率: 97%という高い水準を維持しました。

  • 飼料要求率: 平均1.7を記録しました。

  • プロトコルの詳細: この表は、190 gから1 kg以上の魚を対象とした週ごとのガイドラインを提供し、32%のタンパク質飼料を用いた1日4回の給餌を利用します。

将来に向けた拡大の可能性

トカンティンス州のティラピア生産量は2024年時点で年間700トンと控えめですが、同州の未開発の潜在能力は膨大です。専門家は、ネットケージシステムを使用することで、この地域は最終的に年間最大29万トンを生産できる可能性があると推定しています。

アナ・パウラ・オエダ氏は、この技術は非常に効果的である一方で、放養密度や水質などの特定の局所的要因に基づいて調整されるべき基盤であると強調しました。7%の節約を完全に達成するために、養殖業者は、給餌表を、給餌時間の固定、定期的な生体測定、食べ残しを防ぐための専用給餌器の使用などの厳格な管理慣行と組み合わせることが推奨されます。


🇨🇳 简体中文 (Simplified Chinese)

Embrapa 突破性进展通过精准喂养大幅降低罗非鱼生产成本

在托坎廷斯州开发的创新饲养方案使养鱼户能够在保持高产的同时显著减少昂贵的饲料浪费

由位于托坎廷斯州帕尔马斯Embrapa 渔业与水产养殖部开发的一项开创性技术将彻底改变网箱罗非鱼养殖的效率。通过验证专门适应当地环境条件的饲料表,研究人员证明生产者可以将饲养成本降低高达 7%。这一突破性进展在由该机构免费提供的新技术简报中得到了详细阐述,旨在优化该州占主导地位的生产系统。

该技术的官方发布定于 5 月 14 日(星期四)Agrotins 期间举行。演示将在渔业与水产养殖馆进行,作为托坎廷斯水库鱼类生产第七届技术会议的一部分。

区域化数据克服地区差异

据首席研究员 Ana Paula Oeda 介绍,这是首次专门针对托坎廷斯州的气候和水质条件调整饲养时间表。此前,当地生产者依赖于参考戈亚斯州 Serra da MesaCana Brava 水库建立的数据模型,而这些数据并不能准确反映托坎廷斯州鱼类的生理需求。

研究表明,在不影响生长、存活率或出肉率的情况下,可以将饲料投喂量减少 10%。在饲料占总成本约 80% 的行业中,这一调整直接影响盈利能力。在新的方案下,每公斤鱼的生产成本从 7.00 美元降至 6.51 美元

Lajeado 水库的实证结果

研究团队在 Lajeado 水库进行了广泛的实验,将传统管理方法与优化方案进行了对比。结果显示鱼类的生长表现非常稳定:

  • 体重增加: 鱼在 119 天内从 210 克增加到 936 克

  • 存活率: 维持在 97% 的高水平。

  • 饲料系数: 平均为 1.7

  • 方案详情: 该表为体重在 190 克1 公斤以上的鱼提供了逐周指导,每天投喂 4 次,使用蛋白质含量为 32% 的饲料。

未来的规模化潜力

尽管截至 2024 年托坎廷斯州的罗非鱼产量仅为 700 吨左右,但该州的潜力巨大。专家估计,利用网箱养殖系统,该地区最终每年可生产高达 290,000 吨

Ana Paula Oeda 强调,虽然这项技术非常有效,但它是一个基础,应根据放养密度和水质等特定局部因素进行调整。为了实现 7% 的完全节支,建议生产者将饲料表与严格的管理措施相结合,如固定喂食时间、定期生物测量以及使用专用喂料器以防止残饵。

editorial@seafood.media
www.seafood.media


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