Quality evaluation of gari produced from cassava and sweet potato tuber mixes

Forty weaned rabbits (8 weeks old) of mixed sexes and breed, with an average initial live-weight of 680g, were used in a nine-week feeding trial to evaluate their performance on diets in which sun-dried sweet potatoe tuber meal (Ipomoea batatas) was included at the rate of 0, 10, 20, 30 and 40% levels in a CP Isonitrogenous diets. Performance parameters showed that feed intake, weight gain and feed to gain ratio were not significantly different between treatments. Values obtained were poorer for the sweet potato based diets compared to the control. No mortality was recorded during the experiment. Carcass and oragn weights expressed as percentage of live-weight showed no significant differences (P>0.05) across the treatments. It was concluded that sweet potato meal can be included up to 40% level in diets of young rabbits.

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Performance and economics of production of Japanese quails (Coturnix coturnix japonica) fed varying levels of peeled cooked sun-dried sweet potato (Ipomoea batatas) meal diets

Nigerian Journal of Animal Production ◽

10.51791/njap.v43i2.900 ◽

2021 ◽

Vol 43 (2) ◽

pp. 181-191

Author(s):

J. A Edache ◽

C. D., Tuleun ◽

R. U Muduudtai ◽

A. G. Yisa

Keyword(s):

Potato Tuber ◽

Sweet Potato ◽

Feed Intake ◽

Ipomoea Batatas ◽

Growth Parameters ◽

Control Diet ◽

Efficiency Ratio ◽

Gross Margin ◽

Japanese Quails ◽

Feed Cost

A six–week feeding trial was carried out to investigate the effect of feeding peeled cooked sundried sweet potato tuber on growth parameters and economics of production of Japanese quails. Five isonitrogenous (25%CP) diets were compounded. The control diet (1) had no sweet potato tuber meal while 2, 3, 4 and 5 had maize replaced at 25, 50, 75 and 100% by peeled and cooked sundried sweet potato tuber meal respectively.. Three hundred day-old Japanese quails of mixed sexes were randomly assigned the diets in a completely randomized design with feed and water provided ad libitum for six weeks. Each diet was allocated to 60 quail chicks which were further divided into three replicates of 20 birds each. Feed intake was significantly (p< 0.05) lower for birds on diet 3 (14.05g/b/d) than for those on diets 4 (14.87g/b/d) and 5 (14.79g/b/d). Water intake was however significantly (p < 0.05) higher for birds on diet 4 (27.40ml/b/d) than for those on diets 1 (23.77ml/b/d), 2 (24.01ml/b/d) and 3 (24.66ml/b/d). Protein intake was significantly (p<0.05) higher for birds on diet 4 (3.72g/b/d) than for those on diets 1 (3.55g/b/d), 2 (3.54g/b/d) and 3 (3.51g/b/d). Energy efficiency ratio was significantly (p<0.05) better on diet 5 (0.29) than on diet 1 (0.24) only. However, weight gain, feed conversion ratio, feed cost/gain, energy intake and protein efficiency ratio did not differ significantly (p>0.05) from the control. Total cost of production per bird was significantly (p< 0.05) higher on diet 3 than on diets 4 and 5. Revenue per bird was significantly (p< 0.05) lower on diet 2 than on diets 1 and 4 only. Gross margin per bird was significantly (p<0.05) lower on diet 2 than on diets 1 and 3 only. Total feed intake and feed cost/kg gain were not affected by the diets (p>0.05) and diet 5 has a cost saving of 3.00% over the control diet. Results showed that peeled cooked sundried sweet potato can completely replace maize in the diet of quail chicks without adverse effects on performance or on economics of production of Japanese quails.

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Preparation and Quality Evaluation of Flour and Biscuit from Sweet Potato

Journal of Food Processing & Technology ◽

10.4172/2157-7110.1000192 ◽

2012 ◽

Vol 03 (12) ◽

Cited By ~ 16

Author(s):

Sneha Srivastava

Keyword(s):

Sweet Potato ◽

Quality Evaluation

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Induction Mechanism of 3-Hydroxy-3-methylglutaryl-CoA Reductase in Potato Tuber and Sweet Potato Root Tissues

Bioscience Biotechnology and Biochemistry ◽

10.1271/bbb.67.1007 ◽

2003 ◽

Vol 67 (5) ◽

pp. 1007-1017 ◽

Cited By ~ 10

Author(s):

Katsuyoshi KONDO ◽

Ikuzo URITANI ◽

Kazuko OBA

Keyword(s):

Potato Tuber ◽

Sweet Potato ◽

Potato Root ◽

Induction Mechanism ◽

Coa Reductase ◽

Root Tissues

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The Distribution and Pasting Properties of Starches in Fresh Sweet Potato (Ipomoea batatas Lam.) Tuber

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.396-398.1672 ◽

2011 ◽

Vol 396-398 ◽

pp. 1672-1675

Author(s):

Yu Zhong Shi ◽

Feng He Tian ◽

Jun He Zhang ◽

Bao Bao Zhang ◽

Wei Na Jin ◽

...

Keyword(s):

Potato Tuber ◽

Sweet Potato ◽

Ipomoea Batatas ◽

Amylose Content ◽

Pasting Properties ◽

Middle Part ◽

Potato Tubers ◽

Middle Section ◽

Different Parts ◽

Extractable Content

This study focused on the distribution and pasting properties of starches in sweet potato (Ipomoea batatas L.) tuber. A fresh sweet potato tuber was cut into six equivalent parts. The extractable contents and pasting properties of starches from different parts of fresh sweet potato tuber were determined. The results showed that the extractable content of starches from the Middle section of sweet potato tuber is lower than that from the head and the end section of sweet potato tuber. The extractable content of starches from the inner-end part and the outer-Middle part of sweet potato tuber are 16.2% and 10.3% respectively. The amylose content of starches is relatively higher in the Middle section and outer layer of sweet potato tuber. The amylose content of starches from the outer-Middle part and the inner-end part of sweet potato tuber are 29.5% and 26.7% respectively. Pasting properties of starches from different parts of sweet potato tubers are different from each other. Among them, the starches from inner-end part of sweet potato tuber have the highest viscosities and a lower breakdown.

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