The objective of present study was to investigate the effect of feeding diets containing different levels (0, 15, 30 or 45 %) of corn-with-cobs (CWC) meal in two forms (mash or pellets) with or without adding exogenous enzyme preparation (Sicozyme) on the broiler growth performance, carcass traits, blood constituents, and nutrient digestibility. Five hundred seventy-six Hubbard broiler chicks were randomly divided into 16 equal experimental groups; each contained 3 equal replications. The chicks were kept in brooding and growing batteries during the starter and finisher periods, 0-3 and 3-7 weeks of age. Sixteen starter and finisher experimental diets were formulated and used. Each experimental group was given its respective diet and all birds were managed similarly and had free access to feed and water. The results obtained can be summarized in the following: Apart from the effect of diet form (DF) or enzyme addition (EA), feeding CWC-diets had no adverse effect on live body weight (LBW) or body weight gain (BWG) of broilers during the entire experimental period. When the dietary CWC level reached 45% feed intake (FI) of broilers was significantly increased while feed conversion (FC) was negatively affected compared with their control counterparts. Birds fed pellets exhibited significantly better LBW and BWG than those of birds fed the mash diets, while FI and FC were not affected, regardless of the effect of dietary CWC level or EA. Similarly, LBW and BWG of broilers were positively affected due to dietary EA as compared to those of birds fed the un-supplemented diets, irrespective of the effect of DF or dietary CWC level. Increasing dietary CWC level to 30 or 45% adversely affected digestibilities dry matter, organic matter and crude protein and rate of nitrogen retention. Birds fed the pelleted diets had better digestibilities for crude protein and ether extract and nitrogen retention compared with those fed the mash diets. Dietary EA led to an increase in the rate of nitrogen retention. Carcass traits of broilers were not significantly affected by dietary CWC level with the exception of significant reductions in dressing-out and abdominal fat percentages and an increase in relative weight of gizzard for birds fed the 45% CWC-diets compared with the controls. Dietary EA and DF had no effect on carcass traits, except that gizzard percent slightly reduced due to feeding pellets as compared to feeding the mash diets. There were significant reductions in serum levels of triglycerides, total cholesterol, and LDL-cholesterol for broilers fed the CWC-containing diets, particularly having the 45%level. However, blood parameters were not affected by EA or DF, with the exception of a significant decrease in triglycerides level in broilers fed pellets as compared to those fed the mash diets. Economic efficiency of broiler production was not affected by including CWC up to 30% in their diets; pelleting of diets and enzyme addition might have a beneficial effect. It could be concluded that corn-with-cobs meal can be inclu...
A completely random experiment was conducted to evaluate onion and moringa seed oils or their mixture under climate summer conditions on growth performance, carcass traits, rectal temperature, respiration rate, blood biochemistry, digestibility coefficients, and economic efficiency of growing rabbits, from June, to August, 2015.A total of 108 Bauscat rabbits, weaned at 5 weeks of age with an average initial body weight of 528.80 ± 1.49,g were randomly distributed into four experimental treatments (27 rabbits/ each) and each treatment was sub-divided four 3 replicates of nine rabbits each. Rabbits were fed the basal diet either un supplemented or supplemented with 1g onion seed oil/Kg diet, or 1gmoringaseed oil/Kg diet and their combination 0.5 g onion seed oil + 0.5 g moringa oil/Kg diet throughout the whole experimental period which lasted for 3 months. The experimental basal diet was isonitrogenous (CP=17.0 %) and isocaloric (2536 Kcal/Kg DE).Results obtained showed thatthe percentages of total saturated fatty acids (TSFA) in moringa oil (23.88%) were higher than in onion oil (8.71%). Moringa oil contains a high level of monounsaturated fatty acids (MUSFAs) especially oleic acid (71.43%) than onion oil (8.71%). Total unsaturated fatty acids (TUSFAs), especially PUSFAs (linoleic) in onion oil were higher than that in moringa oil .Under the high ambient temperatures final body weight, daily gain and total gain of growing rabbits were significantly (P ≤ 0.05) increased and feed conversion values were improved with dietary supplementation with either moringa oil or onion oil and their mixture compared with those of the control group from 5-17 weeks of age. However, feed intake and viability rate were not significantly influenced by experimental dietary
The objective of this study was to evaluate the impact of propolis and zinc methionine (Zn-Met) supplementation on improvement of productive, reproductive and immunity performance of local developed Insash strain under Egyptian summer conditions. A total number of 180 laying hens and 36 cocks of Inshas chicken at 24 weeks of age was used and divided into equal 6 experimental groups (30 hens + 6 cocks), each of three replicates (10 hens +2 cock in each replicate). The obtained results revealed a significant (P<0.05) improvement in egg production percentage, egg mass and feed conversion ratio in the groups fed propolis at the level of 100 or 300 mg plus 80 mg Zn-Met or at 300 mg propolis only /kg diet as compared with the control group. Percentage of fertile eggs, serum ALT, dead spermatozoa, sperm abnormalities, were significantly improved at the level of 100 or 300 mg propolis either alone or plus 80 mg Zn-Met /kg diet. While, percentage of hatchability, sperm motility, sperm cell concentration, were significantly increased in the group received 300 mg propolis only or plus 80 mg Zn-Met /kg diet. Serum total protein, globulin and cholesterol, acrosomal damage, immune response after injection of phytohemoaglutinine (PHA-P), serum IgG and IgM esteems were significantly (P<0.05) enhanced in all supplemented groups compared with the contrasted control. Digestibility coefficients of dry matter (DM), crude protein (CP) and organic matter (OM) were significantly (P<0.05) improved at the level of 100 or 300 mg propolis plus 80 mg Zn-Met /kg diet or at 300 mg propolis /kg diet alone, while AST and ether extract (EE) were significantly (P<0.05) improved at the level of 300 mg propolis /kg diet.Therefore, it could be concluded that, supplementation of 300 mg propolis either single or plus 80 Zn-Met /kg diet is recommended for improving most of productive and reproductive, traits including egg production, semen quality, fertility, hatchability and serum biochemical traits as wellas immune response.
The objective of this study was to evaluate the impact of supplementation levels (0, 8, 16 and 24 mg octacosanol (octa) / kg diet) on productive and physiological performance of aged Silver Montazah strain. A total number of 120 laying hens and 24 cocks of Silver Montazah local strain at 60 weeks of age was utilized in a completely randomized design and randomly assigned into 4 treatment groups (30 hens + 6 cocks in each treatment). Each group was divided into three replicates (10 hens and 2 cocks in each replicates). The 1 st group was fed the basal diet and served as the control group .The 2 nd , 3 rd and 4 th groups were fed the basal diet supplemented with 8, 16, and 24 mg octacosanol /kg diet respectively. The obtained results revealed that egg production percentage, egg mass, feed conversion ratios, concentrations of cholesterol, triglycerides, and LDL cholesterol, ovary weights, number of small yellow follicles (SYFs) and large white follicles (LWFs) were significantly (P≤0.05) improved by supplemented at levels of 16 mg or 24 mg octa /kg diet as compared with the control group. In addition, albumen height and Haugh unit were significantly (P≤0.05) improved than the control group at level of 24 mg octa /kg diet. Yolk diameter, concentrations of total protein, progesterone, estradiol, FSH, and LH, sperm cell concentration as well as sperm motility, dead spermatozoa, sperm abnormality and acrosomal 518 EL-WARDANY damage were significantly improved by increasing levels of octa when compared with the control group. Conclusively, it is clear that, supplementation of 16 mg octacosanol /kg diet is recommended for improving most of productive and reproductive traits, including egg production, some parameters egg quality, of semen quality and reduce serum lipid of laying hens, during summer season, under Inshas, Sharkia Province, Egypt environment conditions.
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