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Evaluation of thyme and ajwain as antibiotic growth promoter substitutions on growth performance,carcass characteristics and serum biochemistry in Japanese quails(Coturnix japonica)

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Animal Nutrition 2018年第1期4卷 79-83页

作者： Farshid Kheiri Mostafa Faghani Nasir Landy Department of Animal Science Shahrekord BranchIslamic Azad University Young Researchers and Elite Club Khorasgan BranchIslamic Azad University

The present study was to evaluate thyme and ajwain as antibiotic growth promoter substitutions on growth performance,carcass characteristics and serum biochemistry in Japanese quails(Coturnix japonica).A feeding trial was conducted over 28 d with 4 groups of Japanese quails fed experimental diets formulated to provide no supplementation(control),or control t 55 mg zinc bacitracin/kg,2 g thyme/kg,and 2 g ajwain/*** 35 d of age,2 quails from each replicate were sacrificed and ***,empty small intestine and heart were weighed and calculated as a percentage of live body *** carcasses were weighed and the cuts were performed to evaluate the yield of legs and *** 35 d of age,2 quails per replicate were chosen and approximately 1-m L blood samples were collected through brachial vein,and concentrations of albumin,total protein,triglyceride,total cholesterol,and high density lipoprotein(HDL)-cholesterol were *** body weight were not affected by the dietary treatment whereas,it tended to increase in quails supplemented with *** feed conversation ratio values were similar though it tended to improve in quails supplemented with thyme compared with other *** feed intake,internal organ weights and carcass traits were not influenced by the dietary *** total cholesterol contents were lower(P < 0.05) in quails supplemented with ajwain compared with control and quails supplemented with antibiotic and *** highest serum HDL-cholesterol was seen in the group supplemented with thyme compared with other *** was concluded that the addition of 2 g/kg thyme can improve serum biochemistry in quails,although its effects on performance criteria was negligible.

关键词： Quail Thyme Ajwain Performance carcass characteristics Serum biochemistry

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Effects of the standardized ileal digestible lysine to metabolizable energy ratio on performance and carcass characteristics of growing-finishing pigs

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Journal of Animal Science and Biotechnology 2012年第1期3卷 42-50页

作者： Pengfei Li Zhikai Zeng Ding Wang Lingfeng Xue Rongfei Zhang Xiangshu Piao Ministry of Agriculture Feed Industry Centre State Key Laboratory of Animar NutritionChina Agricultural UniversityBeijing 100193China

A total of 2,121 growing-finishing pigs （Duroc × Landrace ×Large White） were utilized in six experiments conducted to determine the effects of different ratios of standardized ileal digestible lysine （SID-Lys） to metabolizable energy （ME） on the performance and carcass characteristics of growing-finishing pigs. Exps. 1 （30 to 50 kg）, 2 （52 to 70 kg） and 3 （81 to 104 kg） were conducted to find an optimum ME level and then this level was used in Exps. 4 （29 to 47 kg）, 5 （54 to 76 kg） and 6 （84 to 109 kg） to test the response of pigs to different ratios of SID-Lys：ME. In Exps.1 to 3, four treatments were used consisting of diets with a formulated ME content of 3.1, 3.2, 3.3 or 3.4 in Exps. I and 2 while Exp. 3 used 3.05, 3.1 S, 3.25 or 3.35 Mcal/kg. A constant SID-Lys：ME ratio of 2.6, 2.3 or 2.0 g/Mcal was used in Exps. 1, 2 and 3, respectively. Weight gain was significantly increased with increasing energy level in Exp.1 while weight gain was unaltered in Exps. 2 and 3. For all three experiments, feed intake was decreased （P 〈 0.05） and feed efficiency was improved （P 〈 0.05） with increasing energy level. Tenth rib back fat thickness linearly increased （P 〈 0.05） with increasing energy level, in Exps. 4 to 6, five treatments were used consisting of diets with a SID-Lys：ME ratio of 2.4, 2.6, 2.8, 3.0 or 3.2 in Exp. 1, 2.1, 2.3, 2.5, 2.7, 2.9 or 3.2 in Exp. 2 and 1.8, 2.0, 2.2, 2.4, or 2.6 in Exp. 3. A constant ME level 3.2, 3.2 and 3.05 Mcal/kg was used in Exps. 1, 2 and 3, respectively （selected based on the results of weight gain）. For all three experiments, weight gain increased （P 〈 0.05） and feed efficiency improved linearly （P 〈 0.05） as the SID-Lys：ME ratio increased. Tenth rib back fat thickness linearly decreased （P 〈 0.0,5） as the SID-Lys：ME ratio increased. Based on a straight broken-line model, the estimated SID-Lys：ME ratio to maximize weight gain was 3.0, 2.43 and 2.2 for 29 to 47, 54 to76 and 84 to 109 kg of pigs, respectively.

关键词： carcass characteristics performance growing-finishing pigs metabolizable energy standardized ilea diqestible lysine

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Effect of Different Levels of Flax Seed Powder as a Source of Omega-3 on the carcass characteristics of Karadi Lambs

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Journal of Agricultural Science and Technology(A) 2012年第10期2卷 1189-1196页

作者： Amera Mohammad Saleh Al-Rubeit Heron Ghazi Zahir Department of Animal Resources College of Agriculture University of Baghdad Baghdad Iraq Department of Animal production College of Agriculture University of Sulaimany Sulaimany lraq

This experiment was conducted at College of Agriculture, University of Sulaimany to study the effect of different levels of Flax seed powder （FP） as a source of omega-3 on the carcass characteristics of Karadi Iambs. It used 20 male Karadi lambs, with an average live-weight of 28 ± 0.398 kg and 4-5 months. They were randomly distributed to 4 treatments. FP was supplemented at the levels of 3%, 6% and 9% compared with the control group for 88 days. At the end of the experiment 12 lambs were slaughtered after overnight fasting of feed. carcasses were chilled for 24 h at 4 ℃. Then, several measurements of carcass characteristics were taken. The results showed： no significant differences have been shown in relation to daily feed intake, live weight gain and feed conversion ratio. The treatment 9% recorded the highest in hot carcass weight （HCW） and cold carcass weight （CCW）, rib eye area （REA） and the lowest fat thickness of subcutaneous fat as compared to other treatments. While, no significant differences in dressing percentage （DP） were seen between treatments. Generally percentage of tail fat related to carcass weight and subcutaneous fat to intermuscular fat ratio decreased with FP supplementation. About carcass cuts, significant （P 〈 0.05） differences were seen in percentage of major carcass cuts （leg, rack, loin and shoulder） and secondary cuts （neck, foreshank, flank and breast cuts） relative to cold carcass weight. It can be concluded that using Flax seed powder （FP） as a source of omega-3 supplementation improved carcass characteristics and efficiency of meat production.

关键词： Flaxseed powder omega-3 carcass characteristics Karadi lambs.

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Influence of Early Quantitative Feed Restriction on Performance and carcass characteristics of Broiler Chickens

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Journal of Northeast Agricultural University(English Edition) 2006年第2期13卷 140-144页

作者： SHI Baoming SHAN Anshan CHAN Long Institute of Animal Nutrition Northeast Agricultural University Harbin Heilongjiang 150030 PRC

An experiment was conducted to study the influence of eady quantitative feed restriction on the performance and carcass characteristics of broiler chickens. Two hundred 8-day-old commercial Avian male broiler chicks were assigned to four groups randomly, with 50 broilers each. At the age of 8 days the broilers were restricted to 90%, 80% or 70% of the ad libitum intake for 7 days. When the restricion was finished, all birds received feed ad libitum again. The results showed that diet restriction resulted in a reduction in body weight and daily gain during the restriction period （P 〈0.05）. The birds restricted to 90% of the ad libitum intake showed the occurring of growth compensation in the 3rd week. The birds restricted to 80% and 70% of the ad libitum intake had growth compensation in the 4th week. No significant differences between the effects of the restriction and the control on final body weight, growth rate, feed conversion efficiency and carcass characteristics （P 〈0.05）.

关键词： broiler, early feed restriction performance carcass characteristics

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Comparative Growth Performance, carcass characteristics and Meat Quality of Local Horro and Exotic Cockerels of Tropical Origin Fed Growers Diet

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Open Journal of Animal Sciences 2021年第1期11卷 62-83页

作者： Abrar Biazen Urge Mengistu Ameha Negassi Aseffa Getenet Abegaz Solomon Dessie Tadelle School of Animal and Rangeland Sciences Haramaya University Haramaya Ethiopia Land O’Lakes Addis Ababa Ethiopia Ethiopian Institute of Agricultural Research Addis Ababa Ethiopia International Livestock Research Institute Addis Ababa Ethiopia

Growth performance, carcass characteristics and meat quality of male chickens were evaluated using eight-week-old 360 cockerels from three exotic (Koekoek, Kuroiler and Sasso-R) and one Ethiopian indigenous (Horro) genotypes. Cockerels in each breed (90) were randomly allocated into three replications of 30 birds each and housed in deep litter pens for the experiment that lasted for 8 to 16 weeks. The experiment was arranged in a Completely Randomized Design. Seven birds per breed were slaughtered at the end to determine carcass yield, chemical composition and quality attributes of meat. The Kuroiler breed has higher body weight, body weight change (1621.8 g), average daily gain (28.9 g/day), daily feed consumption (127.4 g/day) and better feed conversion ratio (4.40) than other breeds. The Kuroiler breed has heavier slaughter weight (2716.3 g), dressed carcass weight (2201.0 g), eviscerated carcass weight (1905.1 g), breast weight (537.7 g), thigh weight (303.1 g) and drumstick weight (274.8 g) than other breeds. Total edible offal was higher for

关键词： Breed carcass characteristics Chicken Cockerel Growth Meat Quality

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Effects of Dietary Supplementation with Cysteamine on Performance, carcass characteristics, Meat Quality and Antioxidant Status in Finishing Pigs

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Journal of Agricultural Science and Technology 2011年第1期5卷 14-19页

作者： X. Z. Lv Y. Wang G. L. Liu Z. S. Wang A. G. Zhou Institute of Animal Nutrition Sichuan Agricultural University Ya ＇an 625014 Sichuan China Engineering Research Center of Animal Disease-Resistance Nutrition of China Ministry of Education Ya＇an 625014 SichuanChina

The current study was to investigate the effects of cysteamine （CS） on carcass characteristics, meat quality, and antioxidant status in finishing pigs. A total of 24 crossbred （PIC variety） finishing pigs （60.05±1.24 kg, 12 gilts and 12 barrows） were assigned randomly to one of the three dietary groups, with four pens/group （one gilt and one barrow per pen）. Pigs were fed with a basal diet containing 0 （control）, 70, or 140 mg/kg CS for 47 days. The results indicated that dietary CS supplementation increased （P〈0.05） the average daily gain and feed intake with optimal responses occurring at 70 mg/kg. Dietary supplementation of CS increased （P〈0.05） the dressing percentage and lean percentage of finishing pigs with optimal responses occurring at 140 mg/kg. The CS supplementation, however, had no effect （P〉0.05） on meat quality. Dietary CS supplementation increased （P〈0.05） total antioxidant capacity （T-AOC） and decreased malondialdehyde （MDA） with optimal responses occurring at 70 mg/kg. CS supplementation at both 70 mg/kg and 140 mg/kg doses improved （P〈0.05） the muscle RNA/DNA ratio. Collectively, the results suggest dietary supplementation of 70 mg/kg CS could significantly improve growth performance and antioxidant status without adverse effects on the gastrointestinal tracts in finishing pigs while the 140 mg/kg CS supplementation improved the carcass quality. However, meat quality was not affected by CS supplementation.

关键词： Cysteamine growth carcass characteristics meat quality antioxidant status finishing pigs.

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Effect of Calcium Source in Supplemental Diets on the Growth Performance and carcass characteristics of the Giant African Land Snails (Archachatina marginata) in the Western Highlands of Cameroon

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Open Journal of Animal Sciences 2022年第3期12卷 537-545页

作者： Aziwo Tatanja Niba Ongum Simon Unji Ngwarh Perpetua Tuncha Helvecia Takwe Department of Animal Production Technology College of Technology University of Bamenda Bambili Cameroon Ministry of Livestock Fisheries and Animal Industries North West Regional Delegation Bamenda Cameroon Helvy Farms Upskill Research Bamenda Cameroon

To contribute to the diversification of protein sources, the conservation and preservation of the Giant African Land Snails (Archachatina marginata), a study was carried out between March and July 2019 at the Helvy Farms-WVED Cameroon located at Station Bamenda to investigate the effect of three calcium sources on their growth performance and carcass characteristics. 180 juvenile snails aged 4 months initially weighing between 24.2 and 28.5 g, shell length ranging between 40.25 - 48.35 mm, and shell diameter of between 14.08 - 18.44 mm were randomly allotted to 3 treatments containing each a different calcium source (crushed snail shell, eggshell and agricultural limestone) and a control treatment constituted of natural plant feeding materials of the snail. There were 45 snails per treatment, constituted of three replicates with 15 snails per replicate. Each replicate was housed in well-constructed surface trench pens equipped with drinking and feeding troughs. The basal diet made up of feedstuffs like pawpaw leaves and watermelons was provided ad libitum. The initial weights of the snails were recorded at the start of the experiment followed by weekly weight measurements, while the snail length and width were measured with a digital caliper of 0.05 mm accuracy. The snails were monitored for a period of 21 weeks and data was collected for 20 weeks after a 1 week adaptation period. The results showed that the weight gain (g) of snails for diets containing calcium sources in the supplemental diets were all significantly higher (P < 0.05) than the corresponding values recorded for the control diet with natural plant material. It was observed that the shell length (0.34 ± 0.02), shell width (0.16 ± 0.02), weight gain (13.13 ± 0.03) and feed conversion efficiency (1.977 ± 0.11) were highest in snails fed snail shell diet as calcium source compared with snails from other treatments. These values were however not significantly higher than corresponding values for the other

关键词： Archachatina marginata Shell Length Shell Width Growth Performance carcass characteristics

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Effect of Different Levels of Chicory and Satureja Hortensis Root Powders on Performance and carcass characteristics of Broilers

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Journal of Agricultural Science and Technology(A) 2011年第8期1卷 1261-1264页

作者： A. M. Aghazadeh F. Ilkhany M. Allahverdi Department of Animal Science Urmia University Urmia Iran

Inulin and oligofructose that are used in animal nutrition originate from chicory roots. Chicory fructans were shown to be prebiotic （selectively interacting with intestinal bacterial ecosystem） in humans and in animals, including livestock and pets. This study was conducted to evaluate the effect of different levels of chicory and satureja hortensis root powders, which are commonly used as alternative to antibiotics, on performance and carcass characteristic of broilers. The study included 280 Ross 308 male broiler chicks （1-day old at the beginning of the study）. There were 7 treatment groups, each consisting of 4 replicates （10 chicks in each replicate）. Chicory root powder （CRP） were added in 2%, 4% and 6% doses and satureja hortensis root powder （SHRP） were added in 0.2%, 0.4% and 0.6% doses to starter and grower diets. The experiment lasted 42 days. Results showed that adding 2% of chicory root powder to the diet rather than control group, had significant effect on body weight gain （BWG）, feed intake （FI） and feed conversion rate （FCR）. All treatments of SHRP rather than control group significantly decreased FCR and feed intake. Treating with 6% CRP in days 1 to 21 in contrast to control group significantly decreased feed intake, but hadn＇t significant effect on FCR. Consequently we concluded that, using 2% CRP and different levels of SHRP had significant effect on performance and carcass characteristics of broilers.

关键词： Chicory satureja hortensis root powder performance carcass characteristics broilers

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Effects of Diet Dilution during the Finishing Period on the Performance and carcass characteristics of Broiler Chickens

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Journal of Northeast Agricultural University(English Edition) 2005年第2期12卷 122-125页

作者： SHI Bao-ming SHAN An-shan CHAN Long Institute of Animal Nutrition Northeast Agriculture University Harbin Heilongjiang 150030 PRC

An experiment was conducted to study the response of broiler to diet dilution during the finishing period. Sixty 29-day-old commercial Avian male broiler chicks were assigned to two groups randomly, with 30 broilers each. Birds were offered a conventional finishing diet or with 10% dilution diet with ground rice hulls from 29 to 49 days of age. The result showed that there were no significant differences between the effects of diet dilution and the control on final body weight, growth rate and feed conversion efficiency. Diet dilution led to a reduction in abdominal fat weight, whereas carcass and breast muscle weight were not affected.

关键词： broiler diet dilution finishing period carcass characteristics

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carcass and Meat characteristics of Hararghe Highland Bull after Draught Work Service

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Open Journal of Animal Sciences 2023年第4期13卷 458-477页

作者： Yohannes Urgesa Ye’i Yesihak Yusuf Mummed Mohammed Yusuf Kurtu Mengistu Urge Leta Travis Gene O’Quinn Animal and Range Sciences Department College of Agriculture Bule Hora University Bule Hora Ethiopia School of Animal and Rangeland Sciences College of Agriculture and Environmental Sciences Haramaya University Dire Dawa Ethiopia Department of Animal Sciences and Industry Kansas State University Manhattan USA

The objectives of the study were to examine the effects of draught work on carcass characteristics, meat yield potential, and distribution along primal cuts in Hararghe highland bulls fed on net energy requirement basis. Twelve bulls were sorted into three groups of four animals each and assigned to three treatment hours: control (0), 4, or 6, using a complete randomized design (CRD). The results of the study show that there are no significant differences (p > 0.05) in slaughter weight, hot carcass weight (HCW), chilling loss, total edible and non-edible offal, fat thickness (FT), deboned meat yield (kg), meat to bone ratio, muscle distribution, and proportion of kidney, pelvic, and heart fat (KPH%) among the treatment groups. However, the hot carcass-based dressing percentage was significantly lowered (p carcass.

关键词： Bulls Draught Work carcass characteristics Meat Muscle Distribution

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