UTILIZATION OF WHOLE TOWER RAPESEED BY LAYING HENS AND BROILER CHICKENS

1978 ◽  
Vol 58 (1) ◽  
pp. 55-61 ◽  
Author(s):  
S. LEESON ◽  
J. D. SUMMERS ◽  
S. J. SLINGER

Laying hens received diets containing 10% Tower rapeseed which was fed either as raw whole seed, autoclaved whole seed or autoclaved and ground seed. Performance was measured over ten 28-day periods. Broiler diets contained 10 or 20% Tower rapeseed either as raw whole seed, dry-heated whole seed or autoclaved whole seed. Laying hens consuming 10% dietary raw whole rapeseed produced significantly (P < 0.05) more eggs than did birds fed an isocaloric, isonitrogenous corn–soybean meal control diet. Egg production of birds fed either the control diet, autoclaved whole rapeseed or autoclaved ground rapeseed was not significantly (P < 0.05) different. Birds fed rapeseed produced smaller eggs (P < 0.01), while those birds offered autoclaved ground rapeseed produced eggs with significantly (P < 0.05) superior shell quality compared to eggs from the control birds. Broiler chickens consuming raw rapeseed had larger thyroids than did control birds, while autoclaving, and to a lesser extent dry-heating, corrected this anomaly. Body weight gain to 4 wk of age was not influenced by dietary treatment, although birds eating 20% dry-heated rapeseed showed a significantly (P < 0.05) inferior feed intake:body weight gain in comparison to that calculated for control birds. It is concluded that whole Tower rapeseed can be well utilized by both broiler chickens and laying hens at inclusion levels of 10–20% and 10%, respectively, and that no advantages accrue from grinding the seed. For broiler chickens, there is an indication that rapeseed should be heat-treated.

2018 ◽  
Vol 43 (3) ◽  
pp. 265 ◽  
Author(s):  
M. A. Cholis ◽  
N. Suthama ◽  
B. Sukamto

The objective of the study was to evaluate feeding effect of microparticle protein derived from soybean meal and fish meal combined with Lactobacillus sp. at 1.2 mL on physiological condition of digestive tract and productivity of broiler. Total of 192 broiler, with initial body weight was 481.0 ± 67.2 g, given dietary treatment starting on day 21 until day 42. The experiment was assigned in a completely randomized design with 8 treatments and 4 replications. Dietary treatment were 21% intact protein (T0), 18% intact protein (T1), 21% microparticle protein (T2), 18% microparticle protein (T3), T0+Lactobacillus sp.1.2 mL (T4), T1+Lactobacillus sp.1.2 mL (T5), T2+Lactobacillus sp.1.2 mL (T6), T3+Lactobacillus sp.1.2 mL (T7). Parameters measured were total ileal lactic acid bacteria (LAB), Coliform and pH, rate of passage, daily body weight gain (DWG) and also carcass weight. Data were subjected to analysis of variance and followed by Duncan multiple range test (P<0.05). Experimental results showed that microparticle protein diet added with Lactobacillus sp. (P<0.05) increased total LAB and DWG, but decreased Coliform population, and slowed down the rate of passage. However, carcass weight was not significantly affected by treatments. Feeding microparticle protein (18%) with addition of Lactobacillus sp. (1.2 mL) can improve to be better condition of digestive tract based on higher LAB and lower Coliform populations, and increase daily body weight gain with the same carcass weight. 


1980 ◽  
Vol 95 (3) ◽  
pp. 697-701
Author(s):  
G. Olaboro ◽  
L. D. Campbell ◽  
R. R. Marquardt

SUMMARYTwo experiments were conducted to study the influence of heat treatment of Vicia faba beans on the productive performance of laying hens fed diets containing large proportions of the beans. In the first experiment, the effects of extruding and pelleting the beans were studied while in the second experiment the effects of autoclaving at 121 °C for 30 min the cotyledons and hulls of the beans were evaluated. Hyline-W36 layers were used in the first experiment while two strains (Shaver-288 and Dekalb) of birds were used in the second experiment. Each experiment lasted 5 months during which data on egg production, egg weight, feed intake, mortality and body-weight gain of birds were collected. The results obtained indicated that heat treatment (extruding, pelleting and autoclaving) of the beans, cotyledons and hulls had no beneficial effect on the productive performance of laying hens fed on diets containing large proportions of the heated beans, cotyledons and hulls. Egg-size reducing factors appeared to be concentrated in the cotyledons rather than the hulls of the beans.


2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Naeem Tahir

In the present feeding trial, responses of laying hens, kept at high ambient temperature, to various dietary ratios of linoleic acid (LNA) to α-linolenic acid (ALA) and vitamin A levels on performance and egg characteristics were evaluated. A total of 360, 40-wk-old, Leghorn laying hens were fed on diets with various combinations of canola oil and linseed oil to achieve LNA to ALA dietary ratios of 20:1, 10:1, 4:1, 2:1, 1:1 and 1:2, each supplemented with 3000 IU or 10000 IU vitamin A/kg of diet. The diets were fed in a 6×2 factorial Completely Randomized Design that continued for 12 weeks. Feed intake, weight gain, egg production and egg quality traits were recorded during the trial. Decreasing dietary LNA to ALA ratio in the diet affected negatively (P<0.05) on body weight gain and yolk percentage in laying hens. While, feed intake, hen-day and hen-housed egg production, feed conversion ratio (FCR) per dozen of eggs and shell quality remained unaffected (P>0.05) by dietary treatments, with the exception of FCR per kg eggs, egg weight and egg-shell thickness which responded significantly (P<0.05) to various dietary treatments. Although the dietary ratio of LNA to ALA of 4:1 or less could produce eggs by the hens with desirable quantities of n-6 and n-3 poly unsaturated fatty acids – that are characteristics of functional diets – the performance of laying hens in terms of body weight gain and egg-yolk percentage was slightly compromised.


2020 ◽  
Vol 46 (4) ◽  
pp. 161-170
Author(s):  
B. C. Anyaegbu ◽  
D. N. Onunkwo ◽  
G. Igwe ◽  
J. Nathaniel ◽  
C. M. Nkwo

This study was carried out to evaluate the growth performance and carcass characteristics of finisher broiler chickens fed diet containing cooked cocoyam tubermeal as energy source in place of maize. The proximate composition of cooked cocoyam tubermeal showed that it contained 13.11% moisture, 2.60% ash, 3.90% crude protein, 9.45% crude fiber, 1.85% ether extract and 70.13% NFE. In the finisher feeding trial, the cooked cocoyam tubermeal was used to replace maize at levels of 25%, 50%, 75% and 100% respectively in the control diet. Each finisher diet was fed to a group of 30 finisher broiler chicken for 4 weeks using completely randomized design. Each treatment was divided into 3 replicates of 10 broiler chicks each. The birds were kept on deep litter and were given feed and water ad-libitum. Parameters measured include ifinal body weight, body weight gain feed intake, feed conversion ratio, carcass characteristics and economics of production. In the finisher feeding trial, the feed intake of the finisher broilers on diets 2, 3 and 4 were similar and compared favourably with those on the control diet. The finisher group on 100% CCYM (diet 5) recorded the lowest feed intake possibly because of the dustiness of the feed. The body weight gain of the finisher broilers on diet 2 (25%) cooked cocoyam tubermeal compared favourably with the control group and was significantly (P<0.05) higher than those on other diets. It appeared that the finisher broilers could not tolerate high levels of cooked cocoyam meal due to dustiness of the feed and its anti-nutritional factors. The cost of production per kg finisher broilers was cheapest for diet 5(100% CCYM) (N356.72) and the costliest was for diet 3(50% CCYM) (N588.28). The internal organs expressed as percent of the live weight were not affected by the treatments. In terms of carcass characteristics, the finisher broilers on diet 2(25% CCYM) recorded the highest breast muscle which was significantly different (P<0.05) from other groups. There were no significant different (P>0.05) on percent back cut, drumstick, head, shank, thigh, neck and wings of the finisher broilers on all the treatments. There were no significant differences (P > 0.05) in percent dressed weight of the finisher broilers on cooked cocoyam based diets. The results of the trial have shown that cooking cocoyam corms (Xanthosoma sagittifolium) for 30 minutes was effective for reducing the cyanide oxalate, tannin, phytic acid and saponin content and that cooking did not affect the proximate composition of tannia. Cooked cocoyam tubermeal could be used to replace maize up to 25% in the diet of finisher broiler chicken without affecting body weight gain, feed intake and feed conversion ratio as indicated in this study.


Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2129
Author(s):  
Abdallah A. Ghazalah ◽  
Mamduh O. Abd-Elsamee ◽  
Kout Elkloub M. E. Moustafa ◽  
Mohamed Abdelrazik Khattab ◽  
Abd-Elrahim A. A. Rehan

Mycotoxins are toxic secondary metabolites produced by different strains of fungi, such as aspergillus, fusarium, and penicillium that can contaminate feed ingredients or the entire feed of poultry and animals. Mycotoxins can cause many serious complications to both humans and animals due to carcinogenic, mutagenic, and immunosuppressive disorders. Therefore, the present experiment aims to investigate the effect of broiler chickens’ diets supplemented with different levels of nanosilica (NS) as an adsorbent agent of mycotoxins on their growth performance and hepatic histopathology. Detectable levels of toxins were present in the feed before feeding, and all levels of mycotoxins were above the normal limit. A total of 180 one-day-old male Arbor Acres broiler chickens were allocated randomly to six treatment groups with three replicates per group, including ten chickens per replicate. The experiment lasted for five weeks, and dietary treatments included control diet and diets with four levels of nanosilica as 0.05%, 0.10%, 0.15%, and 0.20% as well as 0.50% bentonite (fixfin® Dry) diet. Bodyweight, body weight gain, average daily feed intake, and feed conversion ratio were measured weekly. At the end of the fifth week, six chickens per treatment were sacrificed to investigate the effects of NS and bentonite on carcass characteristics and hepatic histopathology. The results showed that providing broiler chickens’ diets with an adsorbent agent, such as NS or bentonite, can reduce the side effects of mycotoxins and enhance their growth performance. The best record was achieved with NS at 0.20%, compared with the control group and other dietary treatment groups. Accordingly, 0.20% of NS could be used in broiler chickens’ diets to minimize the harmful effects of mycotoxins.


Author(s):  
Jeong-Woo Lee ◽  
Da-Hye Kim ◽  
Yoo Bhin Kim ◽  
Su-Been Jeong ◽  
Sungtaek Oh ◽  
...  

The present study was conducted to evaluate encapsulated essential oils as an alternative anticoccidial in coccidiosis vaccine challenged broiler chickens. A total of 600 day-old male broiler chicks were provided with no-added corn-soybean meal-based control diet or diets that contained either salinomycin or EO at 60 and 120 mg per kg of diet. On day 21, half of the control groups were orally challenged with a coccidiosis vaccine at 25 times higher than the recommended vaccine dose. During 22 to 28 days (i.e., one-week post coccidiosis vaccine challenge), the challenged chickens had decrease (P &lt; 0.05) in body weight gain and feed intake but increase in feed conversion ratio compared with the non-challenged, na&iuml;ve control chickens. However, dietary EO significantly counteracted (P &lt; 0.05) coccidiosis vaccine-induced depression in body weight gain and feed intake. Increasing dietary EO linearly decreased (P &lt; 0.05) the concentrations of the volatile fatty acids. Dietary SAL and EO affected gut morphology in chickens at 20 days posthatch. Increasing dietary EO linearly (P = 0.073) increased serum catalase activity. Collectively, our study shows that dietary EO increased coccidiosis vaccine-induced growth depression and altered gut physiology in broiler chickens.


2020 ◽  
Vol 8 (2) ◽  
pp. 93-99
Author(s):  
A.R. Zhang ◽  
S.A. Pirzado ◽  
G.H. Liu ◽  
Z.M. Chen ◽  
W.H. Chang ◽  
...  

The aim of this study was to evaluate the influence of the dietary addition of sodium humate (HAS) on performance and immune response of laying hens during peak lay, over an eight-week period. Laying hens, aged 24 weeks old, were randomly allotted to four dietary treatments: a basal control diet or the basal diet supplemented with 0.1, 0.3 or 0.5% HAS. Each treatment had six replicates with 15 layers per replicate. Egg production, egg quality, serum antioxidant parameters and immunity indexes were measured. HAS had no significant effect on egg production or egg and shell quality, but all supplemental levels significantly improved Haugh unit values and egg yolk colour. Supplementation with all levels of HAS significantly increased serum immunoglobuline (Ig) level compared to the hens fed the control diet. Feeding either 0.1 or 0.5% HAS significantly increased serum IgM levels. The results indicated that dietary supplementation with HAS can enhance egg albumin quality and improve immunity in laying hens.


2013 ◽  
Vol 13 (59) ◽  
pp. 7957-7971
Author(s):  
SO Aro ◽  
◽  
JO Agbede ◽  
VA Aletor ◽  
AA Ashimi

A feeding trial was conducted to investigate the performance, haematology, nutrient digestibility and economics of production of growing pigs fed diets containing differently fermented cassava starch residue (CSR) and cassava peels (CP) altogether referred to as cassava tuber wastes (CTW). The CSR and CP were each divided into three parts and processed as dry unfermented (UFCRS Diet 2; UFCP Diet 5), naturally fermented (NFCSR Diet 3; NFCP Diet 6) and microbial fermentation by inoculation (MFCSR Diet 4; MFCP Diet 7). Each part was included in a control diet (Diet 1) to replace maize at 20% dietary level to make a total of seven treatments. The final live weight (F LW), total live weight gain (TL G) and total feed consumption (TFC) of pigs fed the control diet were not significantly (p>0.05) different from those fed the test diets. However, the feed conversion ratio (FC R) of pigs fed the control was consistently lower (3.93) than those fed CSR (3.68- 3.30) and CP (3.75- 3.36) - based diets. The response of RBC, WBC, Hb and PCV to the dietary treatment varied significantly (p<0.05) with the CTW -product incorporated into the diets vizs: RBC 10 6 /mm 3 : 7.53 vs CSR (5.71- 6.26) and CP (4.71- 5.75); WBC 10 3 /mm 3 :14.84 vs CSR (9.06- 10.06) and CP (8.53- 10.90) , and PCV%: 36.75 vs CSR (35.75- 36.00) and CP (32.5- 37.00) while the MCHC and differential counts were not significantly (P>0.05) affected. Varied effects on the digestibility of major ingredients in the diets were observed with the digestibility of dry matter (DM) been enhanced : 0.49- 8.68% and 3.10- 7.48%, organic matter (OM): 1.60 -9.37% and 3.41- 8.43%, crude protein: 3.33- 6.17% and 1.18 -4.10% , and crude fibre (CF): 24.37- 30.52% and 2.34- 28.80% by CSR and CP, respectively , over the control diet . T he Mean Apparent Digestibility (MAD) for NFE (CSR 65.07%; CP 69.33%) was higher than that of the control diet (61.49%) . The cost of feed intake per pig decreased : 11.92 -12.76% and 8.38 -14.95% , cost of feed per k g body weight gain: 14.84- 22.66% and 14.84- 21.88% with enhanced gross profit increase of 19.66 -29.02% and 14.37- 26.50% in CSR - and CP -based diets, respectively. It can , therefore, be concluded that CTW products could be included in pig’s diet as an alternative to maize.


2021 ◽  
Vol 34 (1) ◽  
pp. 83-93
Author(s):  
A. O. Fanimo ◽  
A. J. Adebayo ◽  
O. O. Oduguwa ◽  
W. O. Biobaku

This study was conducted to investigate the response of broiler chickens to diets containing cashewnut testa (CNT). Two hundred and four (204) day-old unsexed Arboracre broiler chicks were randomly allotted to four dietary treatment consisting of three replicates of seventeen chicks each. The treatments consists of a control and three other diets with CNT included at 5, 10, and 15% as a substitute for wheat offal in the control diet. Cashewnut testa had 1.5, 20.0, 54.0, 17.0, 2.0, and 94.5% crude protein (CP), crude fibre (CF), nitrogen free extract (NFE), ether extract (EE), ash and dry matter (DM), respectively. Weight gain was highest (P < 0.05) in birds fed 5% CNT diet (35.24g) while the lowest and feed: gain ratio values. The CP retention and digestible EE, CF, NFE, ash, DM and total digestible nutrient were not significantly (P <0.05) affected by CNT in the diets. The serum metabolites were significantly (P < 0.05) affected by the levels of CNT in the diets. Total serum protein increased (P < 0.05) with increasing level of CNT in the diets. Among the carcass parameters measured, breast, neck and back weight were highest (P < 0.05) for 5%CNT diet while abdominal fat, small intestine and large intestine weight increased (P < 0.05) with increasing levels of CNT in the diets. No significant effect (P > 0.05) in juiciness, flavor intensity, tenderness and off flavor was recorded among the meat samples from the broiler fed the diets. Meat lipid and ash increased (P < 0.05) in the CNT diets. Cost of feed per kg decreased while cost of feed per kg live weight gain increased (P < 0.05) with increasing level of CNT in the diets. It was concluded that 5% CNT could replace wheat offal in broiler diets.


2021 ◽  
Vol 39 (1) ◽  
pp. 112-131
Author(s):  
M. A Tion ◽  
S. A Offiong ◽  
P. C Njoku

Four trials (two at the starter phase and two at the finisher phase) were carried out in a study that utilized Anak-180 broiler chickens to evaluate the potentials of six limestone sources (that were procured from Ashaka, Calabar, Jakura, Sokoto, Ukpila and Yandev cement factories) for inclusion in broiler diets as calcium source. The control diet accounted for the seventh dietary treatment. The first chick trial (Trial 1) utilized 525 chicks and the second (Trial 2) utilized 420 chicks from day old to 28 days of age. Dietary treatments in each trial were replicated 3 times such that Trial 1 had 25 chicks per replicate and Trial 2 had 20 chicks. The first finisher trial (Trial 3) utilized 315 chickens with 15 birds per replicate, the second (Trial 4) utilized 252 chickens with 12 birds per replicate from 35 days of age to 56 days. The experimental design was Completely Randomized Design. Measurements were taken for, feed intake, body weight gain, efficiency of feed conversion, leg disorders and mortality rate. Results indicated significant (P<0.05) differences in feed intake and weight gain in trial 1. In trial 2, all performance traits were significantly (P<0.05) different among the diets. Both leg disorders and mortality rate occurred in trial 1 but were mild in trial 2. There were no significant (P>0.05) differences among the limes in the performance traits in trial 3, but trial 4 showed significant (P<0.05) differences among the dietary means for feed intake, and weight gain. Generally, the study showed improved performance traits over suggested bench mark standard in this country. Leg disorders did not affect performance traits adversely; both leg disorders and mortality rate were adjudged to be independent of limestone sources tested. It was concluded that, the limestone sources tested were good calcium sources for broiler diets.


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