银色CARP (Hypophthalmichthys molitrix) 指纹的饮食要求
Maria Tayyaba1, Mahroze Fatima1, Syed Zakir Hussain Shah2
1University of Veterinary and Animal Sciences, Lahore, Pakistan.
Journal of animal physiology and animal nutrition
|July 22, 2023
概括
银鱼 (Hypophthalmichthys molitrix) 的最佳 (P) 需求量为6.5g/kg,提高了生长性能和矿化. 较高的P水平降低了料摄入量和改变了身体成分,表明6.5g/kg是理想的P补充剂.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 鱼类营养 鱼类营养
- 动物科学动物科学
背景情况:
- (P) 在食中对于鱼类的生长,骨发育和整体健康至关重要.
- 确定最佳的P要求对于可持续的水产养殖实践和高效的料利用至关重要.
- 银鱼 (Hypophthalmichthys molitrix) 是一个重要的水产养殖物种,但它们的特定营养需求需要进一步调查.
研究的目的:
- 确定银鱼 (Hypophthalmichthys molitrix) 的最佳 (P) 饮食需求.
- 评估不同饮食P水平对生长性能,身体组成和矿物化的影响.
- 评估P补充对银鱼中性酸盐 (ALP) 活性的影响.
主要方法:
- 进行了一项为期90天的养试验,使用360只银鱼,分为18个坦克.
- 鱼类的食中含有六种不同的P水平 (3.3至8.6g/kg).
- 分析了生长表现,料摄入量,身体成分,矿物质含量 (Ca,P,Mg,Zn) 和ALP活性.
主要成果:
- 最佳生长性能 (体重增加,PER,SGR) 和料转换比率 (FCR) 在6.5和7.5g/kg P.中观察到.
- 增加P水平 (≥6.5g/kg) 提高了全身,骨和的Ca,P和Mg含量,以及血清中的Ca和P水平.
- 原油脂肪减少,而原油灰随着P水平的提高而增加;ALP活性达到6.5g/kgP的峰值.
结论:
- 对于银鱼的最佳生长和矿化,推的饮食P水平为6.5g/kg.
- 食补充P显著影响生长,身体组成,矿物沉积和ALP活动.
- 过度的P含量超过6.5g/kg可能会对料摄入产生负面影响,并改变银鱼的身体成分.
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