Histology of the digestive tract of Satanoperca pappaterra (Osteichthyes, Cichlidae)

Silva, Marlene Rodrigues da; Natali, Maria Raquel Marçal; Hahn, Norma Segatti

doi:10.4025/actascibiolsci.v34i3.8956

Cited by 10 publications

(12 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The longer villi found in fish fed lower levels of KM (<75%) in the diet indicate higher efficiency in the absorptive process (Da Silva et al, 2012;Caballero et al, 2003). This was evidenced by the better growth performance of fish fed these diets.…”

Section: Discussionmentioning

confidence: 65%

“…This was evidenced by the better growth performance of fish fed these diets. The decrease in villi height resulted in reduced surface area for nutrient absorption (Da Silva et al, 2012); this may also explain the poor condition of the liver. Furthermore, the enterocytes of these fish showed an increase in goblet cell number and microvilli degeneration.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Untitled

Samkelisiwe¹,

Ngonidzashe²

2014

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

The effects of replacing fishmeal (FM) with kikuyu meal (KM) and moringa meal (MM) in Clarias gariepinus diets were investigated. Nine diets (30% CP: 20 MJ kg -1 ) were formulated by replacing FM with KM and MM at 0% (control), 25, 50, 75 and 100%. Each diet was randomly assigned to triplicate groups of C. gariepinus (30.5±2 g) for 60 days. Significantly higher (P<0.05) growth performance, feed and protein utilisation was observed in C. gariepinus fed KM diets compared to those fed MM. No histological alterations were found in liver of fish fed the control diet. Increased hepatocyte degradation was seen in fish fed higher levels of moringa in the diet. The enterocytes showed a significant increase in the number of goblet cells with increasing levels of MM. Villi height decreased significantly (P<0.05) when MM replaced >75 fishmeal. Higher levels of anti-nutrients in MM may be the cause of the adverse effects in growth, histology and haematological parameters of fish fed moringa based diets. The results of this study indicate that KM can replace up to 25% FM and that adding MM resulted in reduced performance. Higher profit index and lower incidence cost was observed KM diets than in MM diets.

show abstract

Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Untitled

Samkelisiwe¹,

Ngonidzashe²

2014

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

show abstract

“…However, the antioxidant defence system is stimulated and connected to response to pathogenic infections in the host. This fact might be related to the CAT levels observed in fish that kept a similar pattern, seen that the animals displayed stable physiological responses in the proportion of ROSs and reactive species of nitrogen (RNSs) (Silva et al., 2012), while not presenting a release of hydrogen peroxide in the process of β‐oxidation.…”

Section: Discussionmentioning

confidence: 84%

Probiotic effects (Bacillus cereusandBacillus subtilis) on growth and physiological parameters of silver catfish (Rhamdia quelen)

et al. 2020

View full text Add to dashboard Cite

This study aimed at evaluating the effects of a probiotic additive in productive performance and physiological parameters for Rhamdia quelen. The fish were fed diets containing increasing levels of the additive (0.15; 0.30; 0.45; and 0.60 g/kg of feed), which consisted of a blend of Bacillus cereus and B. subtilis, both at the concentration of 4 × 10 11 CFU). Productive performance parameters were higher in fish fed diets containing 0.60 g/kg of the probiotics. Both the proximate composition and carcass yield were affected when 0.30 and 0.60 g/kg of the additive was included, whilst serum biochemical parameters were higher in fish fed diets containing 0.60 g/kg of the additive. An increase in the hepatic oxidative stress activity was found when 0.30 g/kg was supplied. The development of intestinal villi was influenced by the inclusion of the additives, as well as the activity of mucous-secreting cells in the tissue. Hepatocyte's growth was differential in fish fed diets containing 0.30 g/kg and other tissue alterations were found using 0.60 g/kg of the additive. The inclusion of 0.60 g/kg of the probiotic in diets for R. quelen enhances its growth performance and physiological status. K E Y W O R D S biotechnology, fish farming, immunomodulatory, native species, non-pathogenic bacteria | 455 LINS-RODIGUES Et aL. by improving the activity of digestive enzymes, besides boosting the animals' immune system (Azevedo et al., 2016; Nakandakare et al., 2013; Wild et al., 2014). In addition, B. subtilis has known bactericidal and fungicidal effects, as it may increase the immune responses of the host (Ramesh & Souissi, 2017). The silver catfish (Rhamdia quelen) became one of the most studied native species by presenting expressive growth, excellent feed conversion, tolerance to handling, high carcass yield and reproductive viability when reared in captivity (Amaral-Junior et al., 2008; Barcellos et al., 2004; Carneiro et al., 2006). In addition, its high acceptance in the consumers market has increasing the number of rearing facilities, which can be performed either in excavated ponds or net-cages, from the initial stages to termination, presenting optimal growth throughout all year, even during periods of low tem

show abstract

“…The decrease in villi height resulted in reduced surface area for nutrient absorption (Da Silva et al, 2012). The longer villi found in fish fed lower levels of sunflower seed meal in the diet indicate a larger surface area and consequently higher efficiency of the intestine during nutrient absorption (Da Silva et al, 2012). This was corroborated by the better growth performance of fish fed with these diets at lower inclusion levels as reported by Adesina et al (2013).…”

Section: Organosomatic Indices C Gariepinus Fed Graded Levels Of Bssmentioning

confidence: 67%

“…This result agrees with that of Hlophe and Moyo (2014) who observed that the intestine histology of C. gariepinus fed diets containing higher moringa leaf meal inclusion levels (>50%) showed significantly shorter villi. The decrease in villi height resulted in reduced surface area for nutrient absorption (Da Silva et al, 2012). The longer villi found in fish fed lower levels of sunflower seed meal in the diet indicate a larger surface area and consequently higher efficiency of the intestine during nutrient absorption (Da Silva et al, 2012).…”

Section: Organosomatic Indices C Gariepinus Fed Graded Levels Of Bssmentioning

confidence: 99%

Assessment of organosomatic indices and histopathological changes in vital organs of <i>Clarias gariepinus</i> juveniles fed graded levels of boiled sunflower (<i>Helianthus annuus</i>) seed meal

Adesina¹

2017

Ife Journal of Science

View full text Add to dashboard Cite

This study investigated the effects of substituting boiled sunflower seed meal (BSSM) for soybean meal (SBM) on the organosomatic indices and histopathological changes in the liver, kidney and intestine of Clarias gariepinus juveniles for fifteen weeks. BSSM was substituted for SBM at 0, 20, 40, 60, 80 and 100% in formulating six isonitrogenous (40% crude protein) and isocaloric (4651.5 Kcal/kg) diets. Diets were fed twice daily to triplicate groups of 360 C. gariepinus juveniles inside eighteen rectangular tanks (20 fish per tank). The result showed that hepatosomatic index (HSI) was significantly highest (3.11%) in the fish fed 0% BSSM diet and lowest (0.87%) in those fed 100% BSSM inclusion. HSI values progressively decreased with increasing inclusion level of BSSM. Kidney-somatic index (KSI) was highest (0.74%) in fish fed 20% BSSM inclusion and least (0.32%) in those fed 100% inclusion. Intestino-somatic index (ISI) was superior (3.82%) in fish fed 100% BSSM inclusion and least (3.16%) in those fed 40%. The liver, kidney and intestine of fish fed 0 and 20% BSSM inclusions showed no visible signs of damage. However, fish fed higher BSSM inclusions (>20%) revealed extensive hepatic degeneration, periportal congestions and severe diffuse cytoplasmic vacuolations of hepatocytes. Kidney tubules of fish fed higher BSSM inclusions exhibited diffuse interstitial congestions, diffuse swelling, epithelial vacuolations and degeneration as well as necrosis. Intestinal changes in fish fed higher BSSM inclusions included reduced sub-mucosal width, markedly stunted villi, moderate erosion of villi's epithelia, hyperplastic villi, necrosis of enterocytes and inflammatory cells in villi's lamina propria. Inclusion of boiled sunflower seed meal beyond 20% in C. gariepinus' diet could cause adverse histological alterations.

show abstract

Histology of the digestive tract of Satanoperca pappaterra (Osteichthyes, Cichlidae)

Cited by 10 publications

References 19 publications

Untitled

Untitled

Probiotic effects (Bacillus cereusandBacillus subtilis) on growth and physiological parameters of silver catfish (Rhamdia quelen)

Assessment of organosomatic indices and histopathological changes in vital organs of <i>Clarias gariepinus</i> juveniles fed graded levels of boiled sunflower (<i>Helianthus annuus</i>) seed meal

Contact Info

Product

Resources

About