成長の初期中期にScarabaeiform幼虫の餌を与えられた黄羽肉肉の成長性能,免疫機能,および肉の品質の変化
Shuaihu Chen1, Tingting Liu1, Hong Shen1
1College of Animal Science and Technology, Shihezi University, Shihezi, China.
Frontiers in veterinary science
|August 27, 2025
まとめ
鶏飼料にScarabaeiform (Sl) 幼虫粉を段階的に追加すると,成長と肉の質が改善されます. このアプローチは,継続的な Slの使用に関連した免疫反応と腸内微生物群の変化を緩和します.
科学分野:
- 動物の栄養
- 持続可能な農業
- 昆虫ベースの飼料
背景:
- 世界的な食糧安全保障の課題は 家畜の代替タンパク質源を必要とします
- 大豆粉の不足は 持続可能な畜産開発に 影響を及ぼします
- Scarabaeiform 幼虫 (Sl) は,栄養上の利点のために有望な代替タンパク質を提供します.
研究 の 目的:
- 黄色い羽のブローラーで,大豆粉をSl粉に置き換えることで,投与段階のダイナミクスを評価する.
- Sl粉が成長能力,屠殺特性,肉の質,免疫機能,腸内微生物群に与える影響を評価する.
- 鶏の飼料システムにおける Sl 粉の最適化戦略を決定する.
主な方法:
- 150匹の雄鶏は5つのグループに分けられ,対照群は4%Sl (完全),8%Sl (完全),4%Sl (段階的),8%Sl (段階的) であった.
- 試験期間中 (完全) または初期中期 (段階的,第1~第42日) における食事補給が行われました.
- 評価には,成長性能,屠殺特性,肉の品質,免疫パラメータ (サイトカイン,IgA,IgG),および腸内微生物群の分析が含まれていた.
主要な成果:
- 段階的な Sl 補給 (4% と 8%) は,成長の初期中期 (1~42日) の体重と体重増加を改善しました.
- 継続的な Sl 補給は後期 (43~63日) の成長率を低下させた.
- 段階的な Sl グループは,過剰な炎症性サイトカイン反応を緩和しながら,脂質の蓄積と humoral 免疫 (IgA,IgG) の改善を示した.
結論:
- 段階的な4%の塩素粉 (1-42日) 補給は,大豆粉を代替して, brojlerの性能と肉の質を向上させる効果的な戦略です.
- このアプローチは栄養素の利用を最適化し,脂質の蓄積を改善し,有害な影響なしに免疫機能をサポートします.
- この研究は,家禽の飼料に Sl 粉を適用するための理論的基礎を提供し,持続可能な家畜生産に貢献します.
関連する概念動画
02:41Lethal Alleles
Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
02:27Background and Environment Affect Phenotype
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
01:16Primary Lymphoid Organs
Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
01:22Development of Immunocompetence
The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...