The feeding value of roasted castor oil bean (Ricinus communis) to growing chicks

Okorie, A. U.; Anugwa, F. O. I.

doi:10.1007/bf01092044

Cited by 17 publications

(16 citation statements)

References 6 publications

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“…The proximate composition of raw castor oil bean seed shows that differences existed between the values obtained in the present work and the values reported by Okorie et al. (1985), Okorie and Anugwa (1987). The CP value (40.9%) obtained in the present study for instance is higher than the values 32.81%, 36.20% and 35% reported by Okorie et al.…”

Section: Discussioncontrasting

confidence: 90%

“…The CP value (40.9%) obtained in the present study for instance is higher than the values 32.81%, 36.20% and 35% reported by Okorie et al. (1985), Okorie and Anugwa (1987) and Browning et al. (1990) respectively.…”

Section: Discussioncontrasting

confidence: 74%

“…It is obvious; therefore, that the diets containing more than 10% cooked CBM had high concentration of residual ricin. This may explain the observed depressed performance in chicks fed diets containing more than 10% CBM as reported by Okorie and Anugwa (1987), Okorie et al. (1988) and Ani and Okorie (2005).…”

Section: Discussionmentioning

confidence: 52%

“…(1985) showed that roasting at 140 °C for 30 min destroyed the ricin. Though this detoxification method was reported to be effective, Okorie and Anugwa (1987), Okoye et al. (1987) and Okorie et al.…”

Section: Introductionmentioning

confidence: 99%

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Response of broiler finishers to diets containing graded levels of processed castor oil bean (Ricinus communis L) meal

Ani

Okorie

2009

Animal Physiology Nutrition

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A 4-week feeding experiment was conducted to determine the effects of graded levels of dehulled and cooked castor oil bean (Ricinus communis L) meal on the performance of broiler finishers. Castor oil bean seeds were dehulled and detoxified by cooking in two stages at 100 degrees C for 50 min per cooking. Sixty 6-week-old broiler birds (Anak strain) were randomly divided into four groups of 15 birds each. The groups were fed four isocaloric (2.90 Mcal of metabolizable energy/kg) and isonitrogenous (21% crude protein) diets containing 0%, 10%, 15% and 20% dehulled and cooked castor oil bean meal (CBM) for 4 weeks. Results showed that there were significant (p < 0.05) differences among treatments in average daily feed intake, final body weight, average daily weight gain (ADWG), feed conversion ratio (FCR) and protein efficiency ratio (PER). Birds fed diets containing 0% and 10% CBM had significantly (p < 0.05) higher feed intake than birds on 15% and 20% CBM diets. The lowest feed intake was recorded at the 20% CBM inclusion level. The highest ADWG was observed in birds fed 0% CBM diet, but this was not significantly (p > 0.05) different from the ADWG of birds on 10% CBM diet. Birds fed diets containing10% and 15% levels of CBM had similar and non-significant (p > 0.05) ADWG. Birds fed 20% CBM diet had the least (p < 0.05) ADWG. Birds fed 0%, 10% and 15% CBM diets had similar FCR and this was significantly (p < 0.05) lower and better than that of birds on 20% CBM diet. The least (p < 0.05) PER was observed in birds fed 20% CBM diet. Birds fed 20% CBM diet had significantly (p < 0.05) higher packed cell volume (PCV) than birds on 10% and 15% CBM diets. Birds fed 0%, 10% and 15% CBM diets had similar (p > 0.05) PCV values. Birds fed diets containing 0%, 10% and 15% levels of CBM had similar and significantly (p < 0.05) lower heamoglobin than birds fed 20% CBM diets. There were also significant (p < 0.05) differences among treatments in dry matter (DM), nitrogen, ether extract (EE) and nitrogen-free extract (NFE) retention. Birds fed 0% CBM diet had significantly (p < 0.05) higher retention of DM, nitrogen and NFE than birds on 10%, 15% and 20% CBM diets. Birds fed 10% CBM diet had significantly (p < 0.05) higher DM, nitrogen and NFE retention than birds on 15% and 20% CBM diets. The lowest retention of DM, nitrogen and NFE was recorded at the 20% CBM inclusion level. Birds fed 0% CBM diet had significantly (p < 0.05) higher EE retention than birds on 15% and 20% CBM diets. The lowest EE retention was observed at the 20% CBM inclusion level. The results of the study indicate that up to 10% dehulled and cooked CBM can be included in broiler finisher rations for optimum performance.

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Section: Discussioncontrasting

confidence: 90%

Section: Discussioncontrasting

confidence: 74%

Section: Discussionmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

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Response of broiler finishers to diets containing graded levels of processed castor oil bean (Ricinus communis L) meal

Ani

Okorie

2009

Animal Physiology Nutrition

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“…The mass is scooped out, tied into banana leaves and dried again for a day. The finished product, which is used as food is called “ Ogili‐isi ” in Onitsha or “ Ogili‐ugba ” in Awka or generally Ogiri (Okorie and Anugwa 1987) in Igboland, Southeastern Nigeria. It is also used as food seasoning.…”

Section: Introductionmentioning

confidence: 99%

Thin-Layer Drying Characteristics of Castor (Ricinus Communis) Seeds

Ojediran¹,

Raji

2011

Journal of Food Processing and Preservation

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The thin‐layer drying behavior of gray small size and white big size varieties of castor seeds dried at 40, 50, 60 and 70C in a laboratory model tray dryer fitted with a temperature control system was investigated. Temperature was found to affect the drying characteristics with samples dried at higher temperature attaining equilibrium moisture content faster. From the five thin‐layer drying equations fitted to the drying data, the modified Page model gave the best fit with highest correlation coefficients of 0.999, 0.990–0.999 and the least root mean square error of 0.010–0.013, 0.011–0.038, respectively, for the two varieties. The effective diffusivity coefficient of moisture transfer varied, respectively, from 8.24 × 10−9–1.81 × 10−8m2/s and 3.72 × 10−8–7.62 × 10−8m2/s, which are within the range for food materials. The activation energies are, respectively, 21.47 kJ/mol and 18.03 kJ/mol. This indicates that the diffusion process requires lower energy hence ease of drying of the castor seeds. PRACTICAL APPLICATION Whole castor seed is extremely poisonous; however, it becomes fit for human consumption when properly processed. Drying is a fundamental unit operation in the processing of this seed which influences the physicochemical and quality characteristic of the product, hence an evaluation of the drying characteristics as a function of drying conditions could help in predicting suitable drying conditions for good quality products.

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Effect of β‐xylanase supplementation of boiled castor seed meal‐based diets on the performance, nutrient absorbability and some blood constituents of pullet chicks

2006

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The feeding value of roasted castor oil bean (Ricinus communis) to growing chicks

Cited by 17 publications

References 6 publications

Response of broiler finishers to diets containing graded levels of processed castor oil bean (Ricinus communis L) meal

Response of broiler finishers to diets containing graded levels of processed castor oil bean (Ricinus communis L) meal

Thin-Layer Drying Characteristics of Castor (Ricinus Communis) Seeds

Effect of β‐xylanase supplementation of boiled castor seed meal‐based diets on the performance, nutrient absorbability and some blood constituents of pullet chicks

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