Potentials of Sweet Potato (Ipomoea batatas) Leaf Meal as Dietary Ingredient for Tilapia zilli Fingerlings

Adewolu, Morenike A.

doi:10.3923/pjn.2008.444.449

Cited by 51 publications

(39 citation statements)

References 25 publications

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“…Inclusion of sweet potato leaf meal in the diet of Tilapia zilli showed that levels up to 15% could be added without any negative effects on the growth, feed efficiency and protein digestibility [83]. In the same vein, Omo regie et al [84] revealed that Oreochromis niloticus could tolerate up to 15% level of inclusion of sweet potato peel.…”

Section: Use Of Sweet Potato By Non-ruminant Animalsmentioning

confidence: 80%

The Use of Cassava, Sweet Potato and Cocoyam, and Their By-Products by Non – Ruminants

Apata¹,

Babalola²

2012

FOOD

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As the search for alternative sources of energy for non ruminants continues, this review was undertaken to examine the potential value of cassava (Manihot utilissima Pohl.), sweet potato (Ipomea batatas Poir.), cocoyam (Xanthosoma sagittifolium Schott.) and their by-products as dietary supplements for non ruminants. Studies on these roots and tubers showed that, on a dry-weight basis, contained 2.0 -7.9% crude protein, 0.3 -3.1% crude fib re and 72.4 -77.9% starch. The practical use of these roots and tubers in non ruminant feeds is generally low. Th is level of utilizat ion is attributed to the low protein and dry matter and the potentially to xic cyanogenic glycosides in fresh cassava and irritating substance in cocoyam. Processing techniques such as fermentation, soaking, boiling, ensiling and sun-drying are adopted to remove the deleterious substances, and effects on animals. The co mparable performance of pigs and poultry fed vary ing levels of roots and tubers and their by-products with those maintained on maize showed that they can be used as substitutes in non-ru minants diets at certain levels without detrimental effects. To achieve increase in the use of these root crops and their by-products for maize replacement in intensive non-ruminant production systems, adequate protein supplementation and proper processing are essential.

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Section: Use Of Sweet Potato By Non-ruminant Animalsmentioning

confidence: 80%

The Use of Cassava, Sweet Potato and Cocoyam, and Their By-Products by Non – Ruminants

Apata¹,

Babalola²

2012

FOOD

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“…Sweet potato foliage production is almost 5 ton/ha, and therefore it is also a potential source of feed for livestock (Dominguez 1992). In addition, sweet potato leaves can be harvested all through the year, even from plants grown on un-used land (Adewolu 2008;Tial et al 2009). Our results showed that Fe and Zn concentration in leaves from OsZIP4 overexpressing lines of sweet potato with were higher than those of the WT and VC lines ( Figure 3), and this suggests that leaves of OsZIP4 sweet potato could be a good source of Zn and Fe nutrients.…”

Section: Discussionmentioning

confidence: 99%

Sweet potato expressing the rice Zn transporter <i>OsZIP4</i> exhibits high Zn content in the tuber

Shin

Takahashi

Nakanishi

et al. 2016

Plant Biotechnology

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Zinc (Zn) is an essential element for humans as well as for plants. Sweet potato is a major staple crop in the world, and is an attractive target crop for genetic engineering because its suitability for clonal propagation and its selfincompatibility. OsZIP4 is a rice Zn transporter that increases Zn concentrations, especially in roots, when it is artificially overexpressed in rice. In our study we induced an embryogenic callus from the apex of sweet potato (Ipomoea batatas L. Lam. cv. Kokei No. 14), and obtained OsZIP4 overexpressed lines driven by the CaMV35S promoter through Agrobacterium infection. Three transgenic lines were confirmed by RT-PCR for their OsZIP4 expression in roots and leaves. Zn concentrations in roots and leaves of OsZIP4 transgenic plants grown on LS medium were approximately 2.3 times and 1.3 times higher, respectively than those of wild type plants. In addition, the iron content of tubers was two times higher than wild type (WT) lines, and that of leaves was up to 1.2 times higher. Root tubers of transgenic lines were obtained under soil culture. The Zn concentration of transgenic sweet potato tubers was 2.2 times higher than WT lines, but there were no differences in shoot length or fresh weight between the transgenic and WT lines. These results indicate that introducing the OsZIP4 gene in to sweet potato is a potential method to improve the Zn nutrition of livestock and humans.

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“…InW2 -InW1 = Natural logarithms of both the final and initial weight of fish and T = duration (in days) of trial (Adewolu, 2008), (3) Protein efficiency ratio (PER) as:…”

Section: Analysis Of Experimental Datamentioning

confidence: 99%

“…Where, protein intake per fish is total feed given multiply (x) by the CP percentage in feed (Adewolu, 2008), (4) Feed conversion ratio (FCR) (Sawhney and Gandotra, 2010) A simple economic analysis was used to assess the cost effectiveness of diets used in the feed trial. The cost of feed was calculated using market prices taken into consideration the cost of feed and the transport fare with the assumption that all other operating costs remained constant (e.g.…”

Section: Analysis Of Experimental Datamentioning

confidence: 99%

Growth and economic performance of fingerlings of Oreochromis niloticus fed on different non-conventional feeds in out-door hapas at Akosombo in Ghana

Abarike¹,

Obodai²,

Attipoe³

2013

Afr. J. Agric. Res.

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. They were fed to fingerlings of O. niloticus of average weight 7.0 ± 0.23 g stocked at 20 fish m -3 in out-door hapas for a period of 24 weeks. The study revealed that fish which were fed on Diet 1 grew significantly (P < 0.05) faster than those fed on the other diets. Fish growth was least on those fed on Diet 4. The incidence cost (IC) was highest (P < 0.05) in fish fed Diet 4 and lowest (P < 0.05) for fish fed Diet 2. The profit index was highest (P < 0.05) for fish fed diet 2 and lowest (P < 0.05) for fish fed Diet 2. O. niloticus fingerlings fed WB based diet produced the fastest growth while fingerlings fed PM based diet was the most cost-effective diet.

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Potentials of Sweet Potato (Ipomoea batatas) Leaf Meal as Dietary Ingredient for Tilapia zilli Fingerlings

Cited by 51 publications

References 25 publications

The Use of Cassava, Sweet Potato and Cocoyam, and Their By-Products by Non – Ruminants

The Use of Cassava, Sweet Potato and Cocoyam, and Their By-Products by Non – Ruminants

Sweet potato expressing the rice Zn transporter <i>OsZIP4</i> exhibits high Zn content in the tuber

Growth and economic performance of fingerlings of Oreochromis niloticus fed on different non-conventional feeds in out-door hapas at Akosombo in Ghana

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