Digestibility and nutrient retention of a wheat bran-containing diet containing two vegetable oil sources applied to laying hens with emphasis on prefeeding period (original) (raw)
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NUTRITIONAL AND PHYSIOLOGICAL STUDIES ON IMPROVING THE UTILIZATION OF WHEAT BRAN IN LAYING HEN DIETS
A total number of laying hens Matrouh strain of weeks of age were used to study the effect of using wheat bran in laying diets and the possibility to improve feeding value of wheat bran when supplemented with some feed additives. Hens were housed in individual cages and were randomly divided into six equal treatments ( birds each) and were approximately similar in body weight. Treatment was received the control diet contained CP and Kcal ME/Kg. Treatment was received the basal wheat bran diet(WB-diet) contained CP and Kcal ME/Kg. Treatments and were received the WB-diet supplemented with sodium sulphate (SS), kemzyme (KE) , SS plus KE, or KE plus Radish extract (RE) , respectively.Birds were fed the experimental diets for three months. Results showed that WB-diet significantly reduced feed intake with no detrimental effect could be found on feed conversion or egg quality. Addition of SS, KE, KE+SS, and KE+RE improved feed conversion by , , and , respectively compared to hens fed WB-diet without additives. Also, feed additives improved egg weight and egg mass. Addition of KE+SS or KE+RE improved digestion coefficients of CP, CF, NFE and appearent ME. Addition of SS or KE+SS significantly increased the level of calcium in serum. WB-diet decreased significantly yolk cholesterol. It could be concluded that WB can be used up to in Matrouh laying hen diets, also it can be used Kemzyme, sodium sulphate, Kemzyme plus sodium sulphate or Kemzyme plus radish extract to improve egg number, egg weight and feed conversion.
A total number of 72Matrouh laying hens (local strain) at 32 weeks of age were used to study the effect of using 50% wheat bran in the laying diets and the possibility to improve the feeding value of wheat bran (WB) when supplemented with some feed additives. Hens were housed in individual cages and were randomly divided into six equal treatments (12 birds each) and were approximately similar in their body weight. Treatment 1 birds were received the control diet contained 16% CP and 2703 kcal ME/Kg. Treatment 2 birds were received the basal wheat bran diet (WB-diet) contained 16.01% CP and 1841 Kcal ME/Kg. Birds of Treatments 3,4,5 and 6 were received the WB-diet supplemented with either 1.0% sodium sulphate (SS), 0.1% kemzyme (KE) , 1.0% (SS) plus 0.1% (KE) , or 0.1%(KE) plus 1.0% Radish extract (RE) , respectively. Birds were fed the experimental diets for three months. Results showed that WB-diet significantly reduced feed intake and numerically decreased egg number. Addition of SS or KE+RE increased egg number and egg mass compared to hens fed WB-diet alone. WB-diet increased level of calcium and phosphorus in serum while decreased cholesterol, low density lipoprotein (LDL) and high density lipoprotein (HDL) in yolk compared to hens fed control diet. It could be concluded that the detrimental effect of inclusion of 50% wheat bran in Matrouh laying hen diets can be overcome by addition of SS or KE+RE.
Soybean oil addition to wheat bran-based diet improves laying hens’ performance
Veterinary World
Background and Aim: Wheat bran (WB) is used extensively in animal feed. Despite its nutritional value, its use is limited because of its high-fiber content. We evaluated the effect of soybean oil on laying hen performance with maize meal partly replaced by WB. Materials and Methods: Thirty-six ISA Brown laying hens, 40 weeks old, were used in a completely randomized design in which laying hens were distributed in individual cages, with three replications of four birds and assigned to three treatments: T1 (basal diet), T2 (60% basal diet + 20% maize meal + 20% WB), and T3 (60% basal diet + 20% maize meal + 17.5% WB + 2.5% soybean oil). Results: Compared with the control group (T1), replacing 20% of yellow maize with WB (T2) did not affect average live weight, egg laying rate, soft-shelled egg production, egg mass, feed conversion per dozen eggs, or laying hen viability (p > 0.05). When 20% of the maize meal was replaced with WB, feed intake and feed conversion per egg mass increas...
Agricultural Sciences, 2018
Wheat bran (WB) is an important side product of the milling industry and plays an increasing role in animal feeding. Despite its nutritional value, its application is limited as a result of its pronounced fiber content. Taking into account the potential use of WB supplementation in feed for laying hens thereby replacing human edible foodstuffs, the influence of different WB levels (0 g•kg −1 , 75 g•kg −1 , and 150 g•kg −1) combined with sunflower or rapeseed oil on egg quality was studied. Among the egg-related quality parameters investigated, eggshell cleanliness, shell rigidity, egg weight, haugh units, yolk and albumen mass, color, pH value, dry matter, crude protein, crude ash, fatty acid spectrum, cholesterol and α-tocopherol of the yolk were monitored. No negative effect of WB supplementation was observed in terms of egg weight, shell weight, albumen weight, yolk weight, haugh unit, shell thickness and eggshell breaking strength. However, certain parameters (i.e. α-tocopherol content, Σn−3 PUFA) were enhanced by feeding 75 g•kg −1 and 150 g•kg −1 WB. The use of WB (75 g•kg −1 and 150 g•kg −1) had no negative effect on egg quality and can, therefore, be recommended for laying hen diets up to 150 g•kg −1. Additionally, the application of rapeseed oil high in Σn−3 PUFA resulted in yolks exhibiting a low Σn−6 PUFA/Σn−3 PUFA ratio.
International Journal of Poultry Science, 2003
The effects of type of grain (wheat vs. sorghum) and oil supplement/kg diet [0, 20g olive oil (OL), 20g safflower oil (SO), 10 g OL plus 10 g SO (OLSO)], over a 12-week period on the performance, plasma and lipoproteins lipids [cholesterol (C), triglycerides (TG), phospholipid (P)], and yolk C and fatty acids concentrations of laying hens were studied. Hens fed on the sorghum diet had significantly (P<0.05) higher yolk oleic acid concentration and oleic:linoleic acid ratio and plasma TG concentration in the low density plus high density lipoproteins (LDL plus HDL) fraction when compared with hens fed on the wheat diet. Birds fed on the OL diet had significantly (P<0.05) higher yolk oleic acid concentration and oleic:linoleic acid ratio, and plasma TG concentration in the VLDL fraction and lower plasma TG concentration in the LDL plus HDL fraction (P<0.01) when compared with those fed on the control diet. Hens fed on the SO diet had significantly (P<0.05) higher concentration of yolk linoleic acid and plasma lipids in the very low density lipoproteins (VLDL) fraction and lower yolk oleic:linoleic acid ratio and plasma TG concentration in the LDL plus HDL fraction (P<0.01) than hens fed on the control diet. Whilst, birds fed on the OLSO diet produced significantly (P<0.05) higher yolk unsaturated:saturated fatty acids ratio and lower palmitic and stearic acids concentrations when compared with those fed on the control diet. Dietary treatments did not significantly affect the weight gain, feed intake, rate of lay, egg and yolk weights, yolk lipid and C concentrations, daily C output, plasma total lipid concentration, plasma C and P concentrations in the LDL plus HDL fraction of hens. It was concluded that hens fed a sorghum based diet or a diet supplemented with olive oil produced eggs with high concentration of oleic and oleic:linoleic acid ratio and that hens fed a diet supplemented with safflower oil produced eggs with high concentration of linoleic and lower oleic:linoleic acid ratio and that hens fed a diet supplemented with olive plus safflower oils produced eggs with high concentration of unsaturated:saturated fatty acid ratio and lower palmitic and stearic acids.
Veterinarski arhiv
substituting wheat bran with cumin seed meal on laying performance, egg quality characteristics and fatty acid profile in laying hens. Vet. arhiv 90, 47-56, 2020. ABSTrACT The objective of the present study was to investigate the effect of substituting wheat bran (WB) with cumin seed meal (CSM) on laying performance, egg quality characteristics and egg-yolk fatty acids profile in laying hens. A total of 180 Bovans hens at 55 weeks of age were divided randomly into three treatments. The CSM was incorporated into a standard corn-and soybean meal-based diet by replacing 0, 50, and 100% of WB [i.e., 100% WB (control), 50% WB+50% CSM and 100% CSM] from 55 to 61 weeks of age. Body weight was measured at the beginning and end of the experiment. Feed intake, hen-day egg production and egg weight were recorded daily. At 61 weeks of age, 30 eggs were taken at random from each treatment group to determine the egg quality characteristics. Replacing 100% of WB by CSM did not affect body weight, however, hen-day egg production, egg weight and egg mass significantly increased, while feed conversion ratio significantly decreased (P<0.05). Haugh unit, shell thickness and yolk color significantly increased by CSM substitution in comparison with 100% WB. Plasma concentrations of total cholesterol, triglycerides, LDL-cholesterol and glutamic oxalacetic transaminase (GOT) significantly decreased by replacing WB with CSM, while, plasma HDL-cholesterol significantly increased. Furthermore, the liver malondialdehyde (MDA) concentration significantly decreased, while vitamin E, linoleic acid and alpha-linolenic acid significantly increased (P<0.05) due to CSM inclusion. Therefore, it could be concluded that substitution of WB with CSM could improve laying performance and egg quality characteristics, and reduce lipid peroxidation in laying hens.
This research was conducted to investigate the effect of inclusion of wheat bran (as a source of insoluble fiber) in a barley-based diet, fed from 11 to 42 d of age, on villus morphology of jejunum, serum cholesterol level, abdominal fat pad and growth performance of broiler chickens. Three hundred and thirty six 10-d-old female Ross 308 chicks were allocated to six diets with four replicates of 14 birds per diet. The diets were a corn-based diet (CN); barley-based diet without (BL) or with multi-enzyme (BL+E, 500 mg/kg of the diet, Rovabio Excel 10%); and barley based-diet that contained 4 (BL+WB4), 8 (BL+WB8) or 12 (BL+WB12) percent wheat bran. Average daily gain, average daily feed intake and feed conversion ratio (FCR) were measured from 11 to 42 d of age. Serum cholesterol level was measured on d 24. Villus height (VH) and villus surface area (VSA) of jejunum, and relative weight (% of body weight) of abdominal fat pad were measured at 42 d of age. The birds receiving CN, BL+E, BL+WB4 and BL+WB8 had significantly (P < 0.01) lower FCR than those feeding on BL. VH (P < 0.01) and VSA (P < 0.001) in the jejunum increased in birds receiving CN, BL+E and BL+WB12 compared with BL birds. Serum cholesterol level in birds fed with BL+WB12 diet decreased (P < 0.05) compared with CN birds. The birds fed with BL, B+WB4, B+WB8, B+WB12 diets showed lower (P < 0.05) relative weight of abdominal fat pad compared with CN diet. In conclusion, the results of this study showed, when broiler chickens fed barley-based diet, the inclusion of lower levels of wheat bran in diet could have a positive effect on feed efficiency, whereas serum cholesterol level, VH and VSA were influenced with the inclusion of highest level of wheat bran.
2019
A 4-week feeding trial was conducted on 48 Lohmann Brown layers (55 weeks) to evaluate the effect on zootechnical parameters and coefficients of apparent absorption of micronutrients (Cu, Fe, Mn, Zn). The layers, assigned to 2 groups, were housed in three-tier digestibility cages (4 layers/cage) which allowed the daily recording of the feed intake and excreta, located in an experimental hall under controlled environmental conditions (temperature: 22.41±0.980C; humidity: 66.35±5.68%; ventilation/chick 0.50±0.24%; CO 2 level 686.39±104.38 ppm) and 16h/24h light regimen. The control group (C) received a conventional diet (2760 kcal/kg metabolizable energy and 16.8% crude protein). Compared to C formulation, the experimental diet (E) included 0.50% oils mixture (20% buckthorn oil, 20% sesame oil, 20% rosehip oil, 20% grape oil and 20% walnut oil). The daily feed intake (at weeks 3 and 4) recorded significant decreases (P≤0.05) in group E (113.29 respectively 114.38 g/chick/day) compared...
An experiment on 55 Lohman Brown hens examined the effect of different dietary levels of maize- and rye distillers dried grains with solubles (mDDGS and rDDGS, respectively) on nutrient digestibility, content of metabolizable energy in the diet and balance of nitrogen, calcium, phosphorus, and zinc. Experimental diets were isocaloric and isonitrogenous and contained 0, 5, 10, 15, or 20% mDDGS or rDDGS. Diets with 20% mDDGS or rDDGS were also supplemented with NSP-hydrolysing enzymes. It was found that 5, 10 or 15% mDDGS in a diet had no effect on apparent digestibility of nutrients, dietary metabolizable energy content, or balance of N, Ca and Zn; 20% mDDGS decreased the digestibility of crude fat and lowered the level of metabolizable energy in the diet, whereas 15 or 20% rDDGS negatively affected organic matter and crude fat digestibility and the dietary metabolizable energy level. A 15 or 20% inclusion of mDDGS or rDDGS had, however, a positive effect on phosphorus balance. Addition of feed enzymes increased nutrient utilization in diets containing 20% DDGS.