A feeding trial was conducted for 28 d to evaluate the effects of feeding albino rats with processed Senna obtusifolia leaf meal (SOLM) based diets. Five experimental diets were compounded to contain 0% and 20% each of the sun-dried, boiled, fresh fermented, boiled fermented SOLM-based diets designated as T1, T2, T3, T4, and T5, respectively. A total of 90 young albino rats with initial weight of 13.52–14.48 g were randomly allocated to the dietary treatments in a completely randomized design with three replicates of six rats each. The result of the productive performance was not significantly (P > 0.05) different, except feed intake, which indicated significant (P < 0.05) variation. The highest total feed intake (365.40 g) was recorded in albino rats fed the control diet (0% SOLM) and 20% boiled and fermented SOLM (334.32 g). The overall weight gain among the albino rats fed the processed SOLM-based diets were not significantly (P > 0.05) different. Results on cost benefits revealed a reduction in feed cost per kilogram, cost of feed intake, and feed cost per kilogram body weight gain recorded in SOLM-based diets (T2–T5). Feed cost per kilogram was observed to reduce by 21.86, 20.79, 21.80, and 18.79 in T2–T5, respectively. It was concluded that the processed SOLM-based diets had enhanced the productive performance of albino rats. However, albino rats fed the boiled and fermented SOLM-based diet indicated better feed intake compared with the other groups of rats fed the other processed SOLM-based diets. On economic grounds, the use of processed SOLM as a feed ingredient for albino rats is cost effective because of the reduction in feed cost per kilogram of the SOLM-based diets and feed cost per kilogram body weight gain observed in albino rats fed SOLM-based diets and is, therefore, recommended for feeding albino rats.
Editors and Sections Genetics and Breeding
A Feeding trial was conducted for sixteen weeks to evaluate nutrient utilization and growth performanceofcockerelsfedprocessedSennaobtusifoliamealbased-diets.Sixexperimental diets werecompounded tocontain 0%and20%eachoftheraw,boiled, soaked, sproutedand fermented Senna obtusifolia seed meal designated T1, T2, T3, T4, T5 and T6, respectively. Data were collected on nutrient digestibility, feed intake, weight gain, feed conversion ratio and mortality. Poor nutrient digestibility for crude protein (45.18%), nitrogen free extract (42.39%) and ether extract (49.22%) were recorded in the group of cockerels fed raw Senna obtusifolia seed meal based-diet. However, better nutrient digestibility for crude protein (76.23%), nitrogen free extract (67.62%) and ether extract (68.65%) digestibility was observed in the group of cockerel fed 0% Senna obtusifolia seed meal based-diet. Among the cockerels fed the processed Senna obtusifolia seed meal based-diets, those fed the fermented Senna obtusifolia seed meal based-diet showed better crude protein (75.08%), ether extract (68.65%) nitrogen free exract (67.62%) and crude fibre (32.78%) digestibility. The result of productive performance revealed a significantly (P<0.05) low total feed intake (3242.13 g), total weight gain (806.50 g) and the poorest feed conversion ratio(4.02) in the group of cockerels fed raw Senna obtusifolia seed meal based-diet. The group of cockerels fed the processed Senna obtusifolia seed meal based-diets indicated significant (P<0.05) improvement in productive performance with those fed the fermented Senna obtusifolia seed meal based-diet recording the highest total feed intake (3552.51 g), total weight gain (1079.79 g) and the best feed conversion ratio (3.29). It can be concluded that 20% of fermented Senna obtusifolia seed meal can be incorporated in the diets of cockerels without depreciationinnutrientdigestibilityandproductiveperformance.
The eight-week feeding trial was conducted to evaluate the nutrient digestibility and growth performance of broiler chickens fed raw or processed Senna obtusifolia seed meal (SOSM). Six experimental diets were compounded to contain 0% SOSM and 20% each of the raw, boiled, soaked, sprouted and fermented SOSM respectively. Two hundred and sixteen (216) broiler chicks were randomly allotted to six (6) dietary treatments in a randomised complete block design with three (3) replicates containing 12 chicks each. Data were collected on nutrient digestibility, feed intake, weight gain, feed conversion ratio and mortality. The result of productive performance indicated that feed intake, weight gain and feed conversion ratio were significantly (P<0.05) depressed in broiler chickens fed raw, soaked and sprouted Senna obtusifolia seed meal. However, broiler chickens fed fermented SOSM showed better (P<0.05) productive performance that was close to those fed the positive control diet (0% SOSM). The mortality rate did not reveal any particular trend. However, the low mortality rate recorded in the different treatments indicated broiler chicken can tolerate up to 20% of either raw or processed SOSM. Broiler chickens fed raw SOSM recorded lower values for dry matter (63.06%), crude protein (52.46%), ether extract (53.88%), crude fibre (30.72%) and nitrogen-free extract (46.11%) digestibility than those fed the other processed SOSM. The nutrient digestibility of broiler chickens fed fermented SOSM was significantly (P<0.05) better followed by those fed boiled Senna obtusifolia seed meal. For instance, broiler chickens fed fermented Senna obtusifolia seed meal recorded the highest crude protein and ether extract of 69.91 and 70.03% compared to the other processing methods. It can be concluded that 20% fermented SOSM can be incorporated in the diets of broiler chickens with Augustine Clement et al. 372 acceptable depreciation in biological performance. Slightly lower levels of boiled SOSM can be included in the diet of broiler chickens but the levels should be ascertained in further studies.
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