肥育豚における制限混合給餌：生産性、窒素収支、飼料コストおよび飼料由来炭素足跡への影響
Restricted Blend Feeding in Growing-Finishing Pigs: Effects on Productive Performance, Nitrogen Balance, Feed Cost and Feed-Related Carbon Footprint (原題)
Gema Montalvo, Paloma Garcia-Rebollar, Carlos Piñeiro, J. Morales, María Rodríguez
🤖 gxceed AI 要約
日本語
肥育豚520頭を対象に、週次で2種飼料を調整する制限混合給餌（R-BF）を慣行3段階給餌と比較した。R-BFは窒素摂取量・排泄量・血中尿素態窒素を有意に削減し、低タンパク・低リジン仕上げ飼料は炭素足跡を16.6%削減、豚1頭当たり飼料由来炭素足跡を3.8%削減した。飼料コストも最大4.0ユーロ/頭低下したが、増体は5%低下し飼料効率が悪化した。
English
A 520-pig trial compared restricted blend feeding (R-BF), with weekly-adjusted diets differing in protein and lysine, against conventional three-phase feeding. R-BF cut nitrogen intake, excretion and blood urea nitrogen, and the low-protein finisher diet lowered estimated carbon footprint by 16.6%, giving a 3.8% lower feed-related footprint per pig. Feed cost fell by up to EUR 4.0 per pig, but average daily gain dropped 5% and feed efficiency worsened.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
食品・農業セクターのScope 3排出量算定において、飼料由来排出の原単位改善はサプライチェーン上流の削減策として重要。日本の食品企業がScope 3カテゴリ1を削減する際の実装例として参考になる。
In the global GX context
Feed-related emissions are a material upstream Scope 3 component for food and agriculture companies under CSRD and ISSB disclosure. This study offers a quantified, farm-level intervention showing measurable footprint reduction, though the growth-performance trade-off limits its economic case.
👥 読者別の含意
🔬研究者:精密給餌が窒素収支と炭素足跡に与える効果を、増体低下とのトレードオフ込みで定量化した実証データとして有用。
🏢実務担当者:畜産・食品企業のScope 3上流削減策として飼料配合見直しの効果と限界を把握できる。
🏛政策担当者:農業由来排出削減策の設計において、環境効果と生産性・収益性のトレードオフを考慮する必要性を示す。
📄 Abstract（原文）
Precision feeding can improve nutrient efficiency and reduce the environmental impact of pig production. This study evaluated a restricted blend feeding (R-BF) program based on weekly adjustments of two diets differing in crude protein and standardized ileal digestible lysine concentrations. A total of 520 growing-finishing pigs were assigned to either a conventional three-phase feeding program or R-BF, with R-BF adjusted by BW group. Compared with conventional feeding, observed SID lysine intake was approximately 2–9% lower in light pigs and 2–18% lower in heavy pigs, depending on growth phase. R-BF did not affect feed intake but reduced average daily gain by 5% and impaired feed efficiency, particularly in heavier pigs. R-BF significantly reduced nitrogen intake, calculated nitrogen excretion, and blood urea nitrogen. The low-crude-protein, low-lysine finisher formulation had a 16.6% lower estimated carbon footprint than the conventional finisher diet, resulting in a 3.8% lower feed-related carbon footprint per pig. R-BF also reduced feed cost by up to EUR 4.0 per pig and tended to lower feed cost per kilogram of BW gain under the low-feed-cost scenario. Overall, R-BF reduced nutrient inputs, feed-related environmental impacts, and feed cost per pig, although lower growth performance limited economic efficiency.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/agriengineering8110483first seen 2026-11-13 05:19:55
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