oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
Piperine as a phytogenic additive in broiler diets
Cardoso, Ver?nica da Silva;Lima, Cristina Amorim Ribeiro de;Lima, Marco Edílson Freire de;Dorneles, Luis Eduardo Gomes;Danelli, Maria das Gra?as Miranda;
Pesquisa Agropecuária Brasileira , 2012, DOI: 10.1590/S0100-204X2012000400003
Abstract: the objective of this work was to determine the effect of piperine as a phytogenic additive in chicken broiler diet. seven?day?old male chicks were randomly allocated in four experimental treatments (n = 24), with four replicates (n = 6). the piperine was added to diets at concentrations of 0, 60, 120, and 180 mg kg?1 for 35 consecutive days. the following were evaluated: biochemical, hematological and histopathological parameters; performance and carcass yield. histomorphometric analyses were also carried out. the addition of 120 and 180 mg kg?1 of piperine did not alter broiler body weight and feed conversion, whereas 60 mg kg?1 of piperine interfered positively in both parameters from 36 to 42 days of age and significantly increased the absorption surface of the duodenum and the ileum. no macroscopic alteration in organ size and color was observed in the broilers fed diets with the evaluated concentrations of piperine. the supplementation of 120 and 180 mg kg?1 of piperine is toxic to liver tissue and reduces the absorption surface of the jejune. the diet supplemented with 60 mg kg?1 of piperine is safe.
Performance of Broiler Chickens Fed Diets Containing Low Inclusion Levels of Black Cumin Seed
Lymia H.A. Majeed,Khadiga A. Abdelati,Nabiela M. El Bagir,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2725.2728
Abstract: An overview of the literature indicates that lower rather than higher dietary concentrations of black cumin seed may have a positive influence on feed efficiency in broiler chickens. In this study, 4 day old broiler chickens were fed either a diet without or with black cumin seed at inclusion levels of 0.25, 0.50 or 0.75% for a period of 7 weeks. Body weight gain during the 1st, 4th and 7th week of the experiment was significantly decreased by each level of dietary black cumin. The diets containing black cumin seed did not significantly influence weight gain and feed efficiency as measured for the entire experimental period. However, the diets with either 0.25, 0.50 or 0.75% black cumin lowered group-mean weight gain by 4.7, 3.3 and 6.5%, respectively and raised the group-mean feed conversion ratio (g feed/g weight gain) by 3.7, 4.8 and 7.0%. The final weights of breast, thigh and drumstick were not affected by the composition of the diet. It is concluded that dietary black cumin seed may deteriorate feed efficiency in broiler chickens in a dose-dependent relationship. It is unclear why the present observation is opposite to the outcome of various earlier studies of other investigators.
Use of Garlic (Allium sativum), Black Cumin Seeds (Nigella sativa L.) and Wild Mint (Mentha longifolia) in Broiler Chickens Diets
O. Ashayerizadeh,B. Dastar,M. Shams Shargh,A. Ashayerizadeh,E. Rahmatnejad,S.M.R. Hossaini
Journal of Animal and Veterinary Advances , 2012,
Abstract: This experiment was conducted for comparison, the effect of garlic powder, black cumin seeds powder and wild mint powder on performance and carcass characteristics of broiler chickens. Based a randomized completely design, 320 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with garlic powder, black cumin seeds powder and wild mint powder, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 20 birds at the bigining of rearing period. There were no significant differences in feed consumption at all of treatments in rearing period (p>0.05). The birds fed the diet containing black cumin seeds powder had the highest body weight gain as compared with other treatments (p<0.05). The best Feed Conversion Ratios (FCR) was recorded with birds fed diets contained black cumin seeds powder compared with control and other groups through all growing periods (p>0.05). The lowest (p<0.05) abdominal fat percent were recorded for broilers fed the diets supplemented with garlic powder and black cumin seeds powder (p<0.05). Also, the highest carcass percent were recorded for birds fed diets supplemented with black cumin seeds powder and garlic powder (p<0.05). The percent of breast in birds received black cumin seeds powder significantly was higher than wild mint and control groups (p<0.05). The percent of thigh was not affected with feed treatments (p>0.05).
Phytogenic additive as an alternative to growth promoters in broiler chickens
Scheuermann, Gerson Neudí;Cunha Junior, Anildo;Cypriano, Lucas;Gabbi, Alexandre Mossate;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009000200032
Abstract: this study evaluated a phytogenic feed additive for broiler chickens. a total of 1,632 broiler chicks were distributed into four treatments: negative control (without growth promoter); positive control (avilamycine, 10ppm + colistin, 15ppm); and two alternative treatments with 150ppm of phytogenic additive, one with a reduced ca and p levels diet (pa-r1) and the other with lower energy, and amino acids, besides ca and p (pa-r2). the trial was conducted with 12 replicates, each consisted of a pen with 34 birds. the alternative diets showed body weight intermediate to the two controls at 42 days, with no significant (p>0.05) treatment effect on feed conversion ratio. no treatment differences (p>0.05) on carcass yield and composition was observed. there was a tendency of abdominal fat lipids saturation, when the phytogenic additive was used, as possible consequence of a decreased level of soybean oil in the diets. a difference (p<0.001) on ingredient consumption profile was observed between the treatments. all together, this study showed a possibility to reduce the cost of total feed used to produce a broilers or a ton of body weight by the utilization of the tested phytogenic additive.
Effect of Phytogenic Growth Promoter on Broiler Bird  [PDF]
S. K. Mukhopadhayay,S. Haldar,D. Niyogi
Journal of Pharmacognosy and Phytochemistry , 2013,
Abstract: The present experiment was conducted to study the biological effect of phytogenic growth promoter supplemented with the diet or added in the drinking water in the broiler birds. In the experiment, two proven phytogenic growth promoters, Digestarom 1317 (dosage 150 ppm) and Digestarom 1440 (dosage 800 ppm) AC were fed to the broiler chickens against an antibiotic growth promoter, Bacitracin Methylene Disalicylate (BMD). The experimental birds were distributed into four equal groups viz., T1, T2, T3 and T4. Birds of the negative control group (T1) were supplemented with basal diet but no growth promoter and birds of the positive control group (T2) were supplemented with basal diet with BMD. Birds of T3 and T4 groups were supplemented basal diet along with two different doses of phytogenic feed additive, Digestarom 1317 @ 150 ppm and Digestarom 1440 @ 800 ppm. Studies on different biological parameters revealed that phytogenic growth promoters significantly (P<0.001) enhance the productive performance of treatment group.
Egg Yield and Quality in Laying Hens Fed Diets Containing Black Cumin Seed and/or White Wormwood Leaves
Bakheit A. Yagoub,Ahmed E. Amin,Nabiela M. El Bagir,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2600.2603
Abstract: Laying hens were fed diets containing either black cumin seed or white wormwood leaves or the combination of the two additives and the effects on egg production and egg quality characteristics were determined. Final body weights were significantly increased in the birds fed the diet with 1% black cumin seed and in those fed the diet with 0.5% of both black cumin seed and white wormwood leaves. Feed intake was numerically lower after the feeding of the diets with 1% white wormwood leaves. Egg production was not significantly influenced by dietary treatment but group-mean egg production was lowered in the hens fed the diet with 1% black cumin seed. Feed conversion efficiency was significantly decreased by the diet containing 1% white wormwood leaves and by the diet with the combination of 1% of black cumin seed and 1% white wormwood leaves. The diet containing 0.5% black cumin seed plus 0.5% white wormwood leaves also significantly decreased feed conversion. Egg weight, shape index, albumen height, Haugh unit, shell thickness and yolk color were not significantly affected by the dietary treatments. The major finding of this study may be that dietary white wormwood improved feed efficiency in laying hens whereas black cumin seed did not.
Lipid Composition of Egg Yolk and Serum in Laying Hens Fed Diets Containing Black Cumin (Nigella sativa)  [PDF]
Nabiela M. El Bagir,Aziza Y. Hama,Rania M. Hamed,Ahmed G. Abd El Rahim
International Journal of Poultry Science , 2006,
Abstract: Laying hens were fed diets without or with 10 or 30 g of the whole seed of black cumin (Nigella sativa)/kg. The concentrations of total lipids, total cholesterol, phospholipids and triacylglycerols in serum and egg yolk were measured. Feeding of the diets with 1 and 3% black cumin seeds for a period of three months reduced egg yolk total cholesterol by 34 and 42%, respectively. Serum cholesterol concentrations averaged for the whole feeding period were lowered by 15 and 23% after feeding the diets with 1 and 3% black cumin seeds, respectively. Black cumin seeds in the diet of laying hens also caused a lowering of serum and egg-yolk concentrations of triacylglycerols and phospholipids. Inclusion of black cumin seeds in the diet caused a significant reduction in egg production, without any effect on egg width and length, while there was a significant increase in hen`s body weight. The increase in body weight in the hens fed black cumin seeds is explained by the ingested feed energy not used for egg production. It is concluded that black cumin seeds and/or the active principle are of interest as potential egg-yolk cholesterol-lowering agents.
PCR-DGGE Analysis of Caecal Microflora of NatustatTM-Supplemented Turkeys Challenged with Histomonas meleagridis  [PDF]
Sinead M. Waters,Cepta F. Duffy,Ronan F.G. Power
International Journal of Poultry Science , 2005,
Abstract: Histomoniasis is a disease of turkeys on litter or range caused by the fragile protozoan Histomonas meleagridis, a parasite of worms, primarily spread in faeces, in Heterakis gallinarum (caecal worm) eggs or in Eisenia foetita (earthworms). Symptoms include poor feed conversion ratio (FCR), decreased body weight (BW), diarrhea, caecal and liver lesions, darkening of the facial regions and sometimes death. Nitarsone can be used as an aid in the prevention of histomoniasis. NatustatTM (Alltech, Inc., Nicholasville, KY), a proprietary plant derived product, is a natural alternative for the prevention of histomoniasis disease in poultry. In this trial, NatustatTM, was used at 1.925kg/Tonne and compared with nitarsone at 0.1875kg/Tonne in male Hybrid turkey diets to 42 d of age on histomonad infected litter from broiler breeders. Infected and uninfected, non-supplemented control groups were also included. On d 28, 35 and 42 of the trial, 16 birds from each group were euthanized. Caecal contents were removed, lyophilized and pooled by group for each sampling day. These samples were subjected to a molecular culture-independent methodology; polymerase chain reaction combined with denaturing gradient gel electrophoresis (PCR-DGGE), to identify shifts in caecal microbial populations between the different dietary supplemented groups. The similarity index, Sorenson`s pairwise similarity coefficient was used to compare caecal PCR-DGGE profiles to each other. In addition sequence analysis was performed on PCR-DGGE bands of interest. Resultant sequences were analyzed using the Basic Local Alignment Search Tool (BLAST) sequence analysis package online at the National Centre for Biotechnology Information (NCBI) homepage http://www.ncbi.nlm.nih.gov. Notable shifts in the PCR-DGGE profiles were observed between the controls and the supplemented groups. It was concluded that PCR-DGGE profiles could be used to monitor bacterial constituents of caecal contents, indicating that NatustatTM has the ability to manipulate the composition of the intestinal microflora.
Clinical Laboratory Serum Values in Rabbits Fed Diets Containing Black Cumin Seed
Nabiela M. El Bagir,Imtithal T.O. Farah,Ahmed Alhaidary,Hasab E. Mohamed,Anton C. Beynen
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.2532.2536
Abstract: Ingestion of black cumin seeds has wide variety of biological effects, implying that different processes in the body are influenced simultaneously. To assess to what extent clinical laboratory serum values are affected, rabbits were fed diets containing different levels of whole black cumin seed and serum was collected at various intervals. The base diet consisted of 60% lucerne and 40% sorghum. To formulate the experimental diets either 10, 15 or 20% of the base diet was replaced by black cumin seed. Body-weight gain was increased by the diets with 10 or 15% black cumin but not by the diet with 20%. Dietary black cumin seed raised serum concentrations of total protein, albumin and globulin but the diet with 20% produced lower values than did the 10 and 15% inclusion levels. Black cumin feeding increased serum urea and creatinine and lowered uric acid concentrations. Serum glucose, total lipid and cholesterol concentrations were lowered by consumption of black cumin. Black cumin seed in the diet did not affect the serum activities of alkaline phosphatase and glutamate pyruvate transaminase. Serum sodium and potassium were not influenced by black cumin but serum calcium and phosphate concentrations were increased. The major finding in this study with rabbits is that the highest dietary level of 20% versus either 10 or 15% black cumin seed lowered serum protein concentrations and diminished weight gain.
Effect of Feeding Different Levels of Nigella sativa Seeds (Black Cumin) on Performance, Blood Constituents and Carcass Characteristics of Broiler Chicks  [PDF]
N. AL-Beitawi,S.S. El-Ghousein
International Journal of Poultry Science , 2008,
Abstract: The effect feeding of different levels of crushed and uncrushed Nigella sativa seeds (NSS) on growth performance, blood constituents and carcass characteristics of Lohman broiler chicks was studied. An experiment with 900 day old chicks was conducted from one to 49 d of age at the poultry farm of Jordan University of Science and Technology. There were 9 dietary treatment groups: control (C), 1.5%, 2.0%, 2.5%, and 3.0%) crushed or uncrushed Nigella sativa seeds (C, T1, T2, T3, T4, T5, T6, T7 and T8) respectively. Results showed that chicks fed 1.5% crushed NSS had the higher (P < 0.05) live body weight (LBW), body weight gain (BWG) and the better (P < 0.05) feed conversion ratio (FCR). Feeding ration contains 3.0% crushed and uncrushed Nigella sativa seeds reduced (P < 0.05) plasma cholesterol and triglycerides concentration, meanwhile 3.0% crushed and uncrushed NSS increase (P < 0.05) plasma HDL level. Chicks fed 2.0% crushed NSS and control rations had the higher (P < 0.05) Total plasma protein, while, chicks fed 2.0% uncrushed NSS and control rations had the higher (P < 0.05) plasma albumin and globulin concentration. The inclusion of different levels of crushed and uncrushed Nigella sativa seeds failed to improve (P < 0.05) any of the carcass characteristics parameters.
Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.