Effects of Dietary Mannan Oligosaccharide on Growth Performance, Feed Utilization, Body Composition and Haematological Parameters in Asian Catfish (Clarias batrachus) Juveniles

The influence of dietary supplementation of mannan oligosaccharide (MOS) on growth performance, feed utilization, body composition and haematological parameters were evaluated in Asian catfish (Clarias batrachus) juveniles. Triplicate groups of juveniles Asian catfish (21.23 ± 1.01 g) were fed twice per day at 3 % of body weight for 12 weeks, with 0 (control), 0.2, 0.4 or 0.6% MOS diets. Compared to control, those fed with MOS supplemented diets had significantly improved (P<0.05) specific growth rates, protein efficiency ratio and survival rate. Significantly lower hepatosomatic index was noted in 0.2% and 0.4% MOS diets compared to those fish fed control. Similarly, intraperitoneal fat was significantly lowest in those fish fed with 0.4% diet over the control group. The highest protein content was (81.86±0.36) in fish fed with 0.4% MOS diet, whereas ash content was highest (7.33±1.23) in fish group fed with 0.6% MOS. Significantly decreased erythrocyte sedimentation rate and increased packed cell volume were observed when the fish fed with 0.4% and 0.6% MOS diets compared to the remaining treatments. MOS supplemented diets showed significant influence on the white blood cell count compared to the control. Thus, 0.4% MOS is sufficient to improve growth and haematological parameters in Asian catfish.

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Influence of Dietary Garlic (Allium sativum) and/or Ascorbic Acid on Performance, Feed Utilization, Body Composition and Hemato-Biochemical Parameters of Juvenile Asian Sea Bass (Lates calcarifer)

Animals ◽

10.3390/ani10122396 ◽

2020 ◽

Vol 10 (12) ◽

pp. 2396

Author(s):

Abdelwahab M. Abdelwahab ◽

Sabry M. El-Bahr ◽

Sami Al-Khamees

Keyword(s):

Ascorbic Acid ◽

Body Composition ◽

Growth Performance ◽

Biochemical Parameters ◽

Allium Sativum ◽

Sea Bass ◽

Basal Diet ◽

Feed Utilization ◽

Control Group ◽

Asian Sea Bass

The current study investigated effects of garlic (Allium sativum) and/or ascorbic acid on growth performance, feed utilization, biochemical body composition, and hemato-biochemical parameters of juvenile Asian sea bass. A total of 600 fish (43.14 ± 0.23 g body weight) were divided into four groups. Fish in the first group were fed basal diet and served as a control group. Fish in groups 2, 3 and 4 were fed a basal diet mixed with garlic (40 g/kg diet), ascorbic acid (1.5 g/kg diet), or garlic (20 g/kg diet)/ascorbic acid (0.75 g/kg diet) mixture, respectively, for 12 weeks. A significant (p < 0.05) increase was observed in growth performance, feed utilization, and chemical body composition in fish fed garlic alone in comparison with the control and other treated groups. All hematological indices, biochemical parameters, and survival rate were not changed significantly (p > 0.05) in all groups throughout the experimental period when compared with the control. Total cholesterol and feed conversion ratio were significantly (p < 0.05) decreased in fish fed garlic alone in comparison to the control and other treated groups. Conclusively, dietary supplementation of garlic alone (40 g/kg diet) was highly effective in improving most of the studied parameters in comparison with that of ascorbic acid alone or a mixture of garlic (20 g/kg diet) and ascorbic acid (0.75 g/kg diet).

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Effects of Rocket Seed Oil, Wheat Germ Oil, and Their Mixture on Growth Performance, Feed Utilization, Digestibility, Redox Status, and Meat Fatty Acid Profile of Growing Rabbits

Agriculture ◽

10.3390/agriculture11070662 ◽

2021 ◽

Vol 11 (7) ◽

pp. 662

Author(s):

Sabrin Abdelrahman Morshedy ◽

Ahmed M. Abdelmodather ◽

Mohamed M. Basyony ◽

Soliman A. Zahran ◽

Mohamed A. Hassan

Keyword(s):

Immune Response ◽

Fatty Acid ◽

Growth Performance ◽

Wheat Germ ◽

Seed Oil ◽

Average Daily Gain ◽

Feed Utilization ◽

Nutrient Digestibility ◽

Control Group ◽

Wheat Germ Oil

Vegetable oils are a source of natural antioxidants, including tocopherols, sterols, phenolic compounds, coenzymes, and polyunsaturated fatty acids that provide nutritional value, organoleptic properties, and significantly delay or prevent lipid oxidation. Eighty-four V-line rabbits at 5 weeks of age with an initial body weight (BW) of 535.60 ± 13.48 g were assigned randomly to four experimental groups (seven replicates in each group with three rabbits each). The first group served as a control and received 0.3 mL/kg BW of distilled water (CON), while the second and third groups received 0.3 mL/kg BW of rocket seed oil (RSO) and wheat germ oil (WGO), respectively. The fourth group received a mixture of oils consisting of 0.15 mL of RSO and 0.15 mL of WGO/kg BW (MOs). The experiment lasted 7 weeks. The study investigated the effects of RSO, WGO, and their mixture on growth performance, feed utilization, antioxidant status, and immune response of growing rabbits. The results indicated that the rabbits that were administered orally with RSO and WGO or their mixture had higher (p ≤ 0.05) final BW, weight gain, and average daily gain when compared to the control group. In addition, the feed conversion ratio improved significantly with RSO, WGO, and MOs treatments. Different oil treatments improved nutrient digestibility, nutritive value, and nitrogen balance. Moreover, the rabbits that received RSO, WGO, and their mixture had an improvement the meat fatty acid composition compared to the control rabbits. Oral administration of RSO, WGO, and their mixture significantly improved serum protein fractions, decreased blood urea nitrogen, and had a positive effect on serum total lipids, HDL-c, and LDL-c. Furthermore, the treatments of RSO, WGO, and MOs had a significant improvement in the antioxidative status and immune response.

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