Effects of dietary sweet potato leaf meal on the growth, non-specific immune responses, total phenols and antioxidant capacity in channel catfish (Ictalurus punctatus )

2012 ◽  
Vol 93 (6) ◽  
pp. 1365-1369 ◽  
Author(s):  
Rebecca T. Lochmann ◽  
Shahidul Islam ◽  
Harold Phillips ◽  
Zelalem Adam ◽  
Jace Everette
2019 ◽  
Vol 1 ◽  
pp. 118-122
Author(s):  
A Ogaga ◽  
A Ebiobowei ◽  
I O Elijah

This study was designed to assess the suitability of using sweet potato leaf meal (SPLM) as a substitute for the complete or partial replacement of soya beans as protein source in fish feed formulation. One hundred and sixty Clarias gariepinus fingerlings were fed different levels of experimental diets containing 40% crudeprotein. Sweet potato leaf mealwas used at different levels of10% (Diet/Treatment 2 i.e. T2), 20% (T3) and 30% (T4), while 0% served as control (T1). Fingerlings were fed diet at 5% of their body weight for 42days. This study determined the growth, survival and the best inclusion rate of SPLM in the diet which was conducted in a plastic tank. All experimental diet were accepted by the Clarias gariepinus fingerlings without impairing growth. The highest mean weight gain (2.5+ 0.09g) was obtained in fish fed with 10% SPLM inclusion (T2), while the least (1.8+ 0.09g) was recorded in T4 i.e. 30% inclusion. Similar trend was obtained for length increase, protein efficiency and percentage survival. All fish were good in condition except those offered diet T4. The best SPLM inclusion level of the study was obtained in T2.


2019 ◽  
Vol 66 (1) ◽  
Author(s):  
Ziahan Ahmad ◽  
Ashutosh Dharmendra Deo ◽  
Sarvendra Kumar ◽  
Amit Ranjan ◽  
Md Aklakur ◽  
...  

A 60-days feeding experiment was conducted to evaluate the utilisation of sweet potato leaf meal (SPLM) for replacement of de-oiled rice bran (DORB) in the diets of rohu Labeo rohita (Hamilton, 1822) fingerlings. SPLM has good protein content (22.12%) and digestible energy content (11.81 MJ kg-1). Five iso-nitrogenous (30%) and iso-caloric diets (13.5 MJ kg-1) were prepared by replacing DORB with sweet potato leaf meal (SPLM) at 0% (C), 25% (T1), 50% (T2), 75% (T3) and 100% (T4). Each dietary treatment was tested in triplicates with 12 fingerlings per tank, following completely randomised design. The growth performance and feed utilisation parameters viz., weight gain % (WG), specific growth rate (SGR), protein efficiency ratio (PER) and feed conversion ratio (FCR) were not significantly different (p>0.05) among treatments. The digestive enzyme activity remained unaffected except amylase activity, which increased significantly in 50% SPLM replacement group (T2). Chymotrypsin decreased significantly (p<0.05) in the treatment groups. Metabolic enzymes viz., ATPase activity of liver increased significantly (p<0.05) whereas ALP (alkaline phosphatase) activity in the intestine had irregular pattern. The present study indicates that DORB can be completely replaced by SPLM without affecting growth performance and digestive enzyme activity in the diet of L. rohita.


2018 ◽  
Vol 21 (2) ◽  
pp. 45
Author(s):  
SUSILA T. G. O. ◽  
T. G. B. YADNYA ◽  
A. A. A. S. TRISNADEWI

The experiment was carried out to study the effect on fermented rice hull in diets supplemented with purplesweet potato (Ipomoea batatas L.) leaves meal on performance of bali ducks. A completely randomized design withfive treatments such as diet without rice hull (A), diet contaning 10% rice hull (B), diet containing 10% fermentedrice hull (C), ration contaning 9% rice hull and 1% purple sweet potato leaf meal (D), diet containing 9% fermentedrice hull and 1% purple sweet potato leaf meal (E). Each treatment in three replications consists of 5 female ducks.The variables observed were feed consumption, antioxidant capacity, total egg weight and FCR, and total eggs, eggproduction per day, and means of eggs weight. It showed that diet feed consumption of ducks fed E treatment found3.32% lower (P<0,05), total eggs 47,56% higher (P<0,05) compared to A. In addition, E treatment can increasetotal amount of eggs, egg production per day, and 29,16%, 29,15% dan 12,12% means of eggs (P<0,05) compared toA treatment. It can be concluded that ducks fed diets containing fermented rice hull and purple sweet potato leafmeal supplemented can improve efficiency of diets and production of eggs.


2008 ◽  
Vol 39 (11) ◽  
pp. 1198-1209 ◽  
Author(s):  
Mediha Yildirim-Aksoy ◽  
Chhorn Lim ◽  
Menghe H Li ◽  
Phillip H Klesius

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