Effect of Dietary Seaweed Supplementation on Growth, Feed Utilization, Digestibility Co-efficient, Digestive Enzyme Activity and Challenge Study against Aeromonas hydrophila of Nile Tilapia Oreochromis niloticus

被引：1

作者：

Priyatharshni, A. ^{[1
]}

Antony, Cheryl ^{[1
]}

Ahilan, B. ^{[1
]}

Uma, A. ^{[1
]}

Chidambaram, P. ^{[1
]}

Ruby, P. ^{[1
]}

Prabu, E. ^{[1
]}

机构：

[1] Tamil Nadu Dr J Jayalalithaa Fisheries Univ, Dr MGR Fisheries Coll & Res Inst, Ponneri 601204, Tamil Nadu, India

来源：

INDIAN JOURNAL OF ANIMAL RESEARCH | 2024年 / 58卷 / 06期

关键词：

Aeromonas hydrophila; Digestibility coefficient; Digestive enzyme activity; Growth performances; Ulva; BODY-COMPOSITION; ULVA-RIGIDA; PERFORMANCE; QUALITY; PROTEIN; IMMUNE; BLOOD;

D O I：

10.18805/IJAR.B-5295

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Background: The present study aimed to determine the growth, digestibility co-efficient, digestive enzyme activity and disease resistance of juvenile GIF tilapia fed with Ulva seaweed meal supplemented diet. Methods: The study was undertaken with different inclusion levels of Ulva seaweed meal (USM) such as raw (UR) and fermented (UF) Ulva meal (UR-5, UR-10, UR-15, UF-5, UF-10 and UF-15% of diet) and control feed (C) for a period of 60 days. Result: GIFT fed with fermented Ulva meal at a 10% inclusion level in their diet exhibited the highest growth performance (41.43 g) followed by UF5 (41.07 +/- 0.43 g), UR5 (39.65 +/- 0.36 g), control (39.09 +/- 0.20 g), UF15 (38.67 +/- 0.26 g), UR10 (38.47 +/- 1.47 g) and UR15 (35.77 +/- 0.35 g) diet. The highest apparent digestibility coefficient (ADC) with crude protein (85.14 +/- 0.91%) was observed in fishes fed with fermented Ulva meal at 10% inclusion rate than that of other treatments group for dry matter, ether extract and gross energy. The digestive enzymatic activities, amylase (0.029 +/- 0.00 units/mg protein/min), protease (0.147 +/- 0.0 units/mgprotein/min) and Lipase (0.273 +/- 0.05 units/mg protein/min), showed higher level in fishes fed with diet containing 10% fermented Ulva meal compared to other treatment groups including control. Moreover, at the end of the trial, increased survival rate (86.66%) was observed with fishes fed with Ulva based diets challenged against Aeromonas hydrophila. The histopathological study showed a lower level of infection in fishes fed with 10% fermented Ulva meal supplementation. The present study concluded that the requirement of Ulva meal in fish diet shows the following trend 10% of Ulva Fermented (UF) and UF-5, Ulva Raw (UR) 5%, control (C), UF-15, UR-10 and UR-15 diet that can improve the health status of the GIF tilapia.

引用

页码：1039 / 1046

页数：8

共 31 条

[1] Potential use of green macroalgae Ulva lactuca as a feed supplement in diets on growth performance, feed utilization and body composition of the African catfish, Clarias gariepinus [J].