Growth response and fatty acid composition of rainbow trout (Oncorhynchus mykiss) fry fed diets containing different levels of soybean and egg lecithin

Azarm, Hamid Mohammadi; Kenari, Abdolmohammad Abedian; Hedayati, Mehdi

doi:10.1007/s10499-012-9583-8

Cited by 9 publications

(7 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, in Dojo loach, concentrations of total n -3 fatty acids in the whole body significantly decreased with incremental dietary PL levels ( 36 ) . In contrast, rainbow trout fry fed egg lecithin containing high levels of EPA and DHA showed higher amounts of PUFA than soyabean lecithin and soyabean oil control groups ( 40 ) . Fatty acids are released from membrane PL by the action of PLA 2 , of which two main types are present.…”

Section: Discussionmentioning

confidence: 96%

Dietary phosphatidylcholine impacts on growth performance and lipid metabolism in adult Genetically Improved Farmed Tilapia (GIFT) strain of Nile tilapiaOreochromis niloticus

et al. 2017

View full text Add to dashboard Cite

This study aimed to determine the effects of supplementing the diet of adult Nile tilapia Oreochromis niloticus with phosphatidylcholine (PC) on growth performance, body composition, fatty acid composition and gene expression. Genetically Improved Farmed Tilapia fish with an initial body weight of 83·1 (sd 2·9) g were divided into six groups. Each group was hand-fed a semi-purified diet containing 1·7 (control diet), 4·0, 6·5, 11·5, 21·3 or 41·0 g PC/kg diet for 68 d. Supplemental PC improved the feed efficiency rate, which was highest in the 11·5 g PC/kg diet. Weight gain and specific growth rate were unaffected. Dietary PC increased PC content in the liver and decreased crude fat content in the liver, viscera and body. SFA and MUFA increased and PUFA decreased in muscle with increasing dietary PC. Cytoplasmic phospholipase A 2 and secreted phospholipase A 2 mRNA expression were up-regulated in the brain and heart in PC-supplemented fish. PC reduced fatty acid synthase mRNA expression in the liver and visceral tissue but increased expression in muscle. Hormone-sensitive lipase and lipoprotein lipase expression increased in the liver with increasing dietary PC. Growth hormone mRNA expression was reduced in the brain and insulin-like growth factor-1 mRNA expression in liver reduced with PC above 6·5 g/kg. Our results demonstrate that dietary supplementation with PC improves feed efficiency and reduces liver fat in adult Nile tilapia, without increasing weight gain, representing a novel dietary approach to reduce feed requirements and improve the health of Nile tilapia.

show abstract

Section: Discussionmentioning

confidence: 96%

Dietary phosphatidylcholine impacts on growth performance and lipid metabolism in adult Genetically Improved Farmed Tilapia (GIFT) strain of Nile tilapiaOreochromis niloticus

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The importance of using of PLs in fish artificial diets on growth performance has been well‐documented in Oncorhynchus mykiss (Azarm, Abedian‐Kenari, & Hedayati, ; Daprà et al, ), Portunus trituberculatus (Li et al, ), S. salar (De Santis, Taylor, Martinez‐Rubio, Boltana, & Tocher, ; Taylor et al, ), Lates calcarifer (Salini, Wade, Bourne, & Turchini, Glencross, ) L. crocea (Cai et al, ; Feng, Cai, Zuo, Mai, & Ai, ). It is stated that PLs with an increasing ratio of brush border enzymes to cytosolic enzyme enhance the larval growth of G. morhua (Hamza et al, ; Wold et al, ).…”

Section: Discussionmentioning

confidence: 99%

Improving co-feeding strategies for Neotropical green terror cichlid (Aequidens rivulatus ) larvae with lecithin-enriched Artemia franciscana nauplii: Effects on survival, growth performance and body composition

et al. 2018

View full text Add to dashboard Cite

The effects of feeding on a commercial diet and lecithin‐enriched (EN) Artemia franciscana nauplii for improving co‐feeding strategies of Neotropical green terror cichlid (Aequidens rivulatus) larvae were conducted. For this purpose, eight groups of fish in triplicates were assigned with two different diets (unenriched Artemia [UN] and EN Artemia) and four feeding regimes (1, 5, 10 and 25 days feeding with UN and EN diets and then a 10% daily replacement Artemia nauplii with commercial diet). The crude lipid (21.4%) and total polar lipid (12.96% of total crud lipid) levels significantly increased in enriched Artemia nauplii (p < 0.05). The highest amount of saturated fatty acids (SFA) were in enriched and UN Artemia nauplii (41.74% and 49.64% respectively) but the highest level of monounsaturated fatty acids (MUFA) (25.69%) and polyunsaturated fatty acids (PUFA) (49.11%) were obtained in commercial diet. Growth performance of fish fed 10 EN and 5 EN had significantly higher values of total weight (120.67, 120.31 mg), %WG (584.48, 580.50%) and SGR (7.69, 7.67%) respectively (p < 0.05). Nevertheless, fish fed 25 EN had significantly higher FCE (190.4%), PER (3.95) and NPU (202.5), in comparison with other groups. In terms of body composition, the EN Artemia nauplii led to increased lipid contents in 25 EN, 10 EN and 5 EN treatments. In conclusion, the results of this study revealed that feeding regimes of 10 EN and 5 EN could improves survival and growth performance of Neotropical green terror cichlid, A. rivulatus larvae.

show abstract

“…De Nardi et al (2012) concluded from a study with a total of 12 mid-lactating dairy cows comparing total mixed rations (TMR) with 6% of dry matter (DM) soy lecithins (a by-product of biodiesel production) or another choline source that soy lecithins can be used as an available source of choline. Azarm et al (2013) fed triplicate groups of 165 rainbow trout (Oncorhynchus mykiss) fry (0.12 g bw) diets supplemented with 0%, 2%, 3% and 6% soybean or egg lecithins at the expense of soybean oil for 40 days, with no adverse effects observed. It should be mentioned that the lecithin diet provided about 14 g choline per cow and day, but the choline diet 25 g. From a study with sheep (a total of 12 Hampshire wethers), Jenkins et al (1989) concluded that phospholipids are degraded in the rumen and inhibit ruminal digestion in a manner similar to that of commercial fats and oils.…”

Section: Safety For the Target Speciesmentioning

confidence: 99%

“…Both lecithin concentrations improved growth significantly and reduced mortality without substantial differences between the two levels. Azarm et al (2013) fed triplicate groups of 165 rainbow trout (Oncorhynchus mykiss) fry (0.12 g bw) diets supplemented with 0%, 2%, 3% and 6% soybean or egg lecithins at the expense of soybean oil for 40 days, with no adverse effects observed. The authors concluded that both lecithin sources improved growth, with the egg lecithins appearing somewhat superior to soybean lecithins.…”

Section: Safety For the Target Speciesmentioning

confidence: 99%

Safety and efficacy of lecithins for all animal species

2016

EFS2

View full text Add to dashboard Cite

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of lecithins for all animal species. The additive consists predominantly of lecithins derived from rapeseed, sunflower and soybean, with other plant extracts. Three different forms of the additive are produced: regular liquid lecithins, hydrolysed liquid lecithins and de-oiled lecithin powder. Lecithins are usually phospholipids, composed of phosphoric acid with choline (or ethanolamine, inositol, serine or hydrogen, in phosphatidic acid), glycerol and one or two fatty acids. Lecithins are safe for all target species. Setting a maximum content for lecithins is not considered necessary. The use of lecithins in animal nutrition does not pose any risk to the consumer. Lecithins are not irritant to the skin and eyes, not skin sensitisers and not harmful by inhalation. No risk for the environment is expected from the use of lecithins in animal nutrition. Lecithins are considered efficacious as emulsifiers at the recommended use levels.

show abstract

Growth response and fatty acid composition of rainbow trout (Oncorhynchus mykiss) fry fed diets containing different levels of soybean and egg lecithin

Cited by 9 publications

References 39 publications

Dietary phosphatidylcholine impacts on growth performance and lipid metabolism in adult Genetically Improved Farmed Tilapia (GIFT) strain of Nile tilapiaOreochromis niloticus

Dietary phosphatidylcholine impacts on growth performance and lipid metabolism in adult Genetically Improved Farmed Tilapia (GIFT) strain of Nile tilapiaOreochromis niloticus

Improving co-feeding strategies for Neotropical green terror cichlid (Aequidens rivulatus ) larvae with lecithin-enriched Artemia franciscana nauplii: Effects on survival, growth performance and body composition

Safety and efficacy of lecithins for all animal species

Contact Info

Product

Resources

About