Evaluation of mango saponin in broilers: effects on growth performance, carcass characteristics, meat quality and plasma biochemical indices
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Objective The objective of the present study was to determine whether mango saponin (MS) could be used as a feed additive in broiler chicks by evaluating growth performance, carcass characteristics, meat quality, and plasma biochemical indices. Methods A total of 216 1-d-old Arbor Acres male broiler chicks were randomly assigned into three dietary treatments supplemented with 0 (control), 0.14% (MS 0.14%), or 0.28% (MS 0.28%) MS. Each treatment had six replicates (cages) with 12 chicks each. The feeding trial lasted for six weeks. Results Compared with the control, dietary supplemented with 0.14% or 0.28% MS increased average daily weight gain of chicks in the grower (22 to 42 d) and the whole (1 to 42 d) phases, and the final body weight of chicks on d 42 was higher in MS supplemented groups (p<0.05). Lower L45 min* (lightness) and L24 h* values, lower b24 h* (yellowness) value, and higher a45 min* (redness) and a24 h* values of the breast muscle were observed in chicks fed with 0.28% MS on d 42 (p<0.05). The total antioxidant capacity in plasma increased in MS 0.14% group on d 21 (p<0.001). Lower contents of plasma total cholesterol and triglyceride were observed in chicks fed with 0.28% MS on d 21 and d 42, whereas the group supplemented with 0.14% MS only decreased plasma triglyceride content on d 21 (p<0.05). The glucose content in plasma decreased in MS 0.28% group on d 42 (p<0.001). Conclusion Overall, MS could be used as a feed additive in broiler chicks, and the supplemental level of 0.28% MS in diet could improve growth performance, meat quality, and plasma lipid metabolism in broiler chicks. Keywords: Mango Saponin; Growth Performance; Meat Quality; Plasma Biochemical Index; Broiler ChickKeywords:
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This study evaluated the effect of feed withdrawal without/ with feed additive (Progut®) on broiler chickens’ performance, carcass traits and some blood parameters, in a factorial arrangement (4 feed restriction×2 levels of feed additive). Three hundred twenty-one-day-old broiler chicks (Cobb 500) were distributed into 8 treatments with four replicates. In the first week all chicks fed starter basal diet, however during the second week, broiler chicks were exposed to feed restriction by feed withdrawal time (0, 6, 9, 12 hours/day). Broiler chicks exposed to feed withdrawal had low body weight gain and feed consumption at 2 weeks of age. Feed withdrawal had no effect on final weight, body weight change, total feed intake, total feed conversion, economic efficiency, carcass traits and serum blood composition of 42-day-old-broiler chicks. Feed withdrawal and feed additive in broiler diets decreased total microflora counts and E coil and enhanced lacto Bacillus, amylase and chemo trypsin in broiler guts. Feed additive (Progut®) decreased total feed consumption, improved total feed conversion and increased economic efficiency of broilers. Feed additive increased the level of β globulin and decreased the level of α globulin in serum blood of broiler chicks. The obtained results suggested that feed withdrawal during the second week of age had not effect on broiler performance, carcass traits and serum blood characteristics and improved lacto Bacillus, amylase and chemo trypsin. Feed additive (Progut®) in broiler diets improved growth performance and decreased total bacteria counts, E coli and increased lacto bacillus counts in broiler guts.
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This study was conducted to investigate the influence of different levels of quercetin on productive traits of Ross-308 broiler chicken. Birds were reared in temperature controlled and well-ventilated room at Animal Production Department/College of Agriculture/University of Kufa for five weeks. A total of 300 chicks, one day age, were randomly distributed into four treatments, each treatment included three equal replicates (25 chicks/replicate), these treatments are T0, T1, T2, T3 which supplemented with 0, 100, 200, 300 mg/kg diet, respectively. Productive parameters including live body weight, weight gain, feed intake and feed conversion ratio, all these parameters were measured weekly. Findings of the study showed that there wasn't a significant difference(p≥0.05) among treatments considering all studied parameters at all rearing weeks, with exception of average feed conversion ratio, that improved significantly at additive treatments especially T2 as compared with control. In a ward, there is limited consideration of additive quercetin on productive traits of broiler chicken, except, average feed-conversion ratio.
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The broiler chicks were divided into four group having 23, 25, 25 and, 25 chicks in I, II, III, and IV group respectively. This experiment was being conducted at poultry research centre of Udai Pratap Autonomous College, Varanasi (U.P.) was carried out on one week aged 98 chicks in December 2012. The highest feed conversion ratio was found in first group (1.78) while it was equal in II and III group (1.57). The lowest feed conversion ratio was also found in II and III experimental group. These two experimental groups show the better growth rate and consumed less amount of feed. The data indicated that the only first group having 3.92 percent mortality. Other experiment groups was having zero percent mortality during this study. It means the growth promoter having the better effect on the performance of the broiler chicks.
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A total of 408, day-old Vencobb 400Y strain broiler chicks were locally procured, weighed individually and randomly divided into four treatment groups to study the effect of tannins, probiotics and antibiotics on feed intake, body weight, weekly body weight gain, feed conversion ratio, nutrient utilization, performance index and nutrient retention in broiler chickens during 35 days feeding trial. Growth performance of broilers in terms of feed intake, weekly body weight gain, feed conversion ratio and performance index was found significant and higher in T1 (Tannin group) and T3 (Probiotics group) in comparison to T2 (Antibiotics group) and control group. Supplementation of tannins and probiotics enhanced growth performance of broiler chicken compared to antibiotics and control group. There was no significant effect on dry matter, ether extract and phosphorus retention in broiler chickens fed tannin, probiotics and antibiotic except calcium. Thus, it may be concluded that supplementation of broiler diet with tannin, probiotics and antibiotics may prove a promising approach in enhancing the growth performance, body weight gain, feed conversion ratio and performance index.
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An increase in live weight, average daily weight gain and livability in broiler chickens of the Ross 308 cross was noted when introducing a complex feed additive of sorption action in the amount of 0.5 kg/t of compound feed into the diet, while reducing feed costs per 1 kg of weight gain. High values of the European Broiler Index (European Production Efficiency Factor) have been obtained in two experimental groups, which indicates the balance of the feed used, optimal keeping conditions and good livability of the poultry stock. In the experimental group of poultry, the European Broiler Index was higher than that in the control group by 64 units or by 23.9% that is associated with intensive growth processes of chickens that is reflected in an increase in their productivity and economic efficiency of poultry meat production.
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One hundred , 4 – week old Anak broiler chicks were used in an experiment to evaluate the effect of graded levels of dietary penicillin on the growth rate and feed conversion of broiler chicks. The birds were randomly assigned to five treatment diets in a Completely Randomized Design [CRD] and each treatment group was further sub – divided into four replicates . The chicks were fed ad-libitum with five formulated broiler finisher diets supplemented with dietary penicillin at levels of 0ppm,50ppm, 100ppm, 150ppm, and 200ppm representing treatments 1,2,3,4 and 5 respectively. Performance criteria were feed intake, daily weight gain and feed conversion ratio (FCR). Results showed that in all the measurements, broiler fed on 50ppm, 100ppm and 150ppm penicillin supplemental levels performed significantly. (P < 0.05) better than those fed on 0ppm, and 200ppm inclusion levels. There was no significant (P > 0.05) difference in the weight gain and feed conversion ratio among the birds fed T1 and T5 diets. The result of this experiment demonstrated that inclusion of penicillin in broiler diets enhanced growth rate and feed conversion of the birds and that penicillin could be supplemented in broiler diets at up to 150ppm levels. Journal of Agriculture and Social Research Vol. 4 (2) 2004: 25-32
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In this paper was studied the genetic effect on economic efficiency of broiler chickens growth, reared in intensive system on period of 42 days. The genetic material was represented of broiler chickens that belonged the hybrids „Ross-308” and „Cobb-500” with two groups („Ross-308”, LC-control group and „Cobb 500”, L1-experimental group). In the growth periods (starter, growth and finisher) chickens have received compound feed ad libitum with nutritional characteristics conforming to recommendations of the Aviagen Company. Broiler chickens and compound feed were weighed on each pen at: 1, 7, 14, 21, 28, 35 and 42 days, and was calculated: body weight gain (BWG), average daily gain (ADG) feed conversion ratio (FCR). Mortality was recorded daily. Thus, at the end of each growth period (14, 35 and 42 days), were calculated values for European Broiler Index (EBI) and European Production Efficiency Factor (EPEF). The highest values for EBI and EPEF were obtained at L1, and at LC situation was reversed. The economic efficiency of broiler chickens growth was positively influenced by the growth performance (BW, ADG and FCR) and the recorded viability. Although, the genotypes studied were reared under identical condition, the hybrid „Cobb-500” to registered slightly higher values for indices studied (P≤0.05), compared to the hybrid „Ross-308”.
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This study was conducted to investigate the influence of different levels of quercetin on productive traits of Ross-308 broiler chicken. Birds were reared in temperature controlled and well ventilated room at Animal Production Department/College of Agriculture/University of Kufa for five weeks. A total of 300 chicks, one day age, were randomly distributed into four treatments, each treatment included three equal replicates (25 chicks/replicate), these treatments are T0, T1, T2, T3 which supplemented with 0, 100, 200, 300 mg/kg diet, respectively. Productive parameters including live body weight, weight gain, feed intake and feed conversion ratio, all these parameters were measured weekly.Findings of the study showed that there wasn't a significant difference(p2:0.05) among treatments considering all studied parameters at all rearing weeks, with exception of average feed conversion ratio, that improved significantly at additive treatments especially T2 as compared with control.In a ward, there is limited consideration of additive quercetin on productive traits of broiler chicken, except, average feed-conversion ratio.
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A total of 360 two weeks old broiler chicks were used to investigate the effect of varying dietary levels of clay on growth performance of broiler chicks. The birds were randomly divided into six groups of 60 birds each and the groups were randomly assigned to six diets containing six levels (0, 1, 2, 3, 4 and 5%) of clay. Each treatment was replicated two times with 30 birds per replicate. The study lasted for four weeks. The response parameters studied were body weight, feed intake, body weight gain, feed conversion ratio and protein efficiency ratio. Results showed that dietary clay inclusion significantly (P<0.05) improved weight gain and efficiency of feed utilization. There was significant (P<0.05) reduction in feed cost per kg weight gain and overall cost of production. The results indicated that up to 5% clay may be included in the diet of broiler chicks to enhance growth performance and to reduce the cost of production.
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The effect of ochratoxin A (OA) on the body weight, feed intake, and feed conversion was investigated in broiler chicken fed dietary levels of OA at 0, 1, and 2 ppm for 28 days from hatch. Feeding OA significantly reduced the growth rate of broiler chicken. The reduction was observed from the first week onwards in OA-treated groups. Feed consumption and feed conversion also showed a diminishing trend from the first week of feeding toxin. Its implication on the performance of broiler chicken is discussed.
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