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Breeding objectives and selection criteria of farmers keeping indigenous cattle populations in north-west Ethiopia 埃塞俄比亚西北部饲养土著牛的农民的育种目标和选择标准
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-11-02 DOI: 10.1080/09712119.2023.2274499
Andualem Tenagne, Mengistie Taye, Tadelle Dessie, Bekalu Muluneh, Damitie Kebede, Getinet Mekuriaw Tarekegn
This study was conducted to identify farmers’ breeding objectives and trait preferences for indigenous cattle in north-west Ethiopia. Multistage purposive and random sampling techniques were used to select study districts, and smallholder farmers. The required data were collected through structured questionnaires from 320 households, personal observations, and focus group discussions. The chi-square (χ2) test, least squares mean, and ranking index were statistical methods used for data analysis. The least squares mean analysis showed a difference (p < 0.001) and the mean herd size was 10.9 heads. Based on ranking index results, milk production (0.35) and draught power (0.25) were the main cattle production purpose/objectives of farmers. The chi-square (χ2) test results of mating practices showed a significant difference (p < 0.001) and 63.8% of farmers used controlled mating. According to the ranking index result, large body size (0.35), colour (0.26), and good traction (0.18) were considered the most important traits in selecting a breeding bull. High milk yield (0.4), colour (0.19), large body size (0.16), and calf growth (0.13) were the preferred traits/criterias for cow selection. Prioritizing farmer trait preference and breeding objectives in this study was critical for the design and implementation of breeding programmes.
本研究旨在确定埃塞俄比亚西北部农民对土著牛的育种目标和性状偏好。采用多阶段有目的随机抽样技术选择研究区和小农。通过对320户家庭的结构化问卷调查、个人观察和焦点小组讨论收集所需数据。资料分析采用χ2检验、最小二乘法、排序指数等统计方法。最小二乘均值分析显示差异(p < 0.001),平均畜群规模为10.9头。从排名指标结果来看,产奶量(0.35)和役力(0.25)是农民主要的养牛目的/目标。配种方式的χ2检验结果显示差异有统计学意义(p < 0.001), 63.8%的农户采用对照配种。根据排名指数结果,体型大(0.35)、颜色(0.26)和良好的牵引力(0.18)是选择种牛的最重要特征。高产奶量(0.4)、颜色(0.19)、体型大(0.16)和犊牛生长(0.13)是奶牛选择的首选性状/标准。在本研究中,优先考虑农民的性状偏好和育种目标对于育种计划的设计和实施至关重要。
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引用次数: 0
Survival potential and assessment of deformities in embryo and larvae of Chinese carps ( Hypophthalmichthys molitrix and Ctenopharyngodon idella ) under acute exposure of cadmium and nickel 急性镉镍暴露下中华鲤鱼(Hypophthalmichthys molitrix和Ctenopharyngodon idella)胚胎和幼鱼的生存潜力及畸形评估
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-11-02 DOI: 10.1080/09712119.2023.2273261
Saima Naz, Ahmad Manan Mustafa Chatha, Barera Rani, Asma Fatima, Ghulam Abbas, Abdulwahed Fahad Alrefaei, Mikhlid H. Almutairi, Sina Gul, Shabana Naz
The effects of cadmium (Cd) and nickel (Ni) toxicity on embryonic and larval development of Hypophthalmichthys molitrix and Ctenopharyngodon idella was determined. Different concentrations (0.1, 0.3, and 0.5 mg/l) of Cd and Ni were administered in separate trials to the fish after spawning to 168 h post-hatching (hph) period. Cd was more toxic to the embryos of both fish, as highest embryonic mortality (%) of H. molitrix and C. idella was observed. However, Ni was found to be more toxic to the larvae of H. molitrix and C. Idella with highest larval mortality at 168 hph. However, Ni was found to be more toxic to the larvae of H. molitrix and C. idella with highest larval mortality at 168 hph. The study found a significant effect of heavy metal and metal concentration for causing deformities in H. molitrix. However, in C. idella only the effect of metal concentration on fish deformities was significant. Furthermore, Ni was found to cause more deformities as compared to Cd in H. molitrix. While Cd was found to cause more deformities as compared to Ni in C. idella. In conclusion, the study suggests that Cd and Ni may cause serious deformities in fish.
研究了镉(Cd)和镍(Ni)毒性对小眼鱼(hypophthalmmithys molitrix)和棘咽鱼(Ctenopharyngodon idella)胚胎和幼虫发育的影响。在产卵至孵化后168 h期间,分别饲喂不同浓度(0.1、0.3和0.5 mg/l)的镉和镍。Cd对这两种鱼的胚胎毒性更大,其胚胎死亡率最高(%)。而镍对黄颡鱼幼虫的毒性更大,在168 hph时死亡率最高。而镍对黄颡鱼幼虫的毒性更大,在168 hph时死亡率最高。研究发现,重金属和重金属浓度对毛蚶畸形的发生有显著影响。然而,在idella中,只有金属浓度对鱼类畸形的影响是显著的。此外,与Cd相比,Ni在H. molitrix中引起更多的变形。而发现Cd比Ni在C. idella中引起更多的畸形。综上所述,该研究表明镉和镍可能导致鱼类严重畸形。
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引用次数: 0
Morphological descriptors of indigenous chickens: as a selection guide 乡土鸡的形态描述符:作为一种选择指南
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-11-01 DOI: 10.1080/09712119.2023.2274956
Chencha Chebo, Aberra Melesse, Simret Betsha
The visual morphologies in animals are associated positively or negatively with production, adaptation, and behavioral characteristics. For rural farmers with limited records, these features are considered reliable phenotypic markers. Thus, this study was intended to explore the unique morphological features of indigenous chickens as a farmer's selection guide. A total of 1,060 adult chickens from four rural districts were investigated for nine morphological traits. The single-comb type, supposed to be of good fertility, was the most prevalent. Yellow and white shanks were predominant, followed by gray, greenish-yellow, green, and black pigmentations. Crested and silky chickens were more frequent in highland areas, whereas naked-neck chickens were observed in lowlands. Chickens of the lowlands have brighter, more uniform plumage colors and yellow shank, beak, and earlobe colors. On the other hand, the highland and mid-altitude chickens are characterized by dark, colorful combinations of various feather colors: laced plumage, white shank, rose, and deformed rose combs. Moreover, multiple correspondence analyses revealed that morphological features have special associations with districts. Thus, the observed morphological heterogeneity of the indigenous chickens can be used as a good indicator of selective breeding. Therefore, the associations of these characteristics with productivity qualities could be confirmed by quantitative and molecular tools.
动物的视觉形态与生产、适应和行为特征呈正相关或负相关。对于记录有限的农村农民,这些特征被认为是可靠的表型标记。因此,本研究旨在探索土鸡独特的形态特征,作为农民选择鸡的指导。对4个农村地区的1060只成鸡进行了9项形态特征的调查。被认为生育能力强的单梳型是最普遍的。黄腿和白腿占主导地位,其次是灰色、黄绿色、绿色和黑色色素。鸡冠鸡和丝鸡在高原地区较为常见,而裸颈鸡在低地较为常见。低地的鸡有更明亮、更均匀的羽毛颜色和黄色的小腿、喙和耳垂颜色。另一方面,高原和中等海拔地区的鸡的特点是深色,各种羽毛颜色的彩色组合:花边羽毛,白腿,玫瑰和变形的玫瑰梳。此外,多重对应分析表明,形态特征与地区有着特殊的联系。因此,观察到的地方鸡的形态异质性可以作为选择育种的一个很好的指标。因此,这些特征与生产力品质的关联可以通过定量和分子工具得到证实。
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引用次数: 0
Devil’s tree flower ( Alstonia scholaris ) extract: positive effects on growth performance and serum biochemical indices in Channa striata (Bloch, 1793) 魔鬼树花提取物对豚鼠生长性能和血清生化指标的积极影响(Bloch, 1793)
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-26 DOI: 10.1080/09712119.2023.2273279
Sontaya Sookying, Arporn Panase, Phanit Srisuttha, Apirak Chaophothun, Paiboon Panase
ABSTRACT Alstonia scholaris (L.) R.Br., a traditional herbal medicine, exhibits many biological activities in humans. Several activities have been confirmed either in vitro or in vivo. The plant might also provide health benefits in other living things. Its pharmacological activities let us expect the essential effects on fish species. To date, A. scholaris activity in Channa striata (Bloch, 1793), an economic farmed fish, has not yet been studied. In this study, we aimed to determine the effects of the plant’s flower extract on growth performance and serum biochemical indices in C. striata. The experimental fish were fed with a control diet, comprising 0.3, 0.6 and 0.9 mg/kg extract supplement for 90 days. The results showed that the growth indices became significantly different (P < 0.05) after 60 days of the trial. Growth parameters; weight gain, average daily gain, specific growth rate, feed conversion ratio, and protein efficiency ratio tended to be improved in a dose-dependent manner. Serum ALT and triglyceride were significantly decreased in all treatment groups. Serum glucose was also affected by the extract. The results revealed that A. scholaris flower extract exhibits a beneficial effect on C. striata growth and health. The plant could be further determined as a valuable commodity for the aquaculture industry.
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引用次数: 0
Lysinibacillus fusiformis : a novel fibrolytic native strain from the rumen microbiome that increases in vitro digestibility of central agricultural residues 梭状芽胞杆菌:一种来自瘤胃微生物组的新型纤维分解原生菌株,可提高中央农业残留物的体外消化率
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-25 DOI: 10.1080/09712119.2023.2269227
Marcela Guadalupe Téllez Martínez, José Luis, Navarrete Bolaños
ABSTRACT Increasing the digestibility of agricultural residues is one goal of sustainable livestock production, and the role of rumen microbiome-feed interaction is critical for efficient digestion. This study was aimed at isolating and evaluating in vitro the effect on dry-matter digestibility (IVDMD), relative feed values (RFV), volatile fatty acid (VFA) synthesis, pH changes, and gas production (GP) by the inclusion of native rumen strains in mixtures of corn, sorghum, and oat agricultural residues with ruminal fluid. The results show that an inoculum of 1 × 1010 colony-forming unit per millilitre (CFU/mL) of the aero-tolerant native rumen strain Lysinibacillus fusiformis increases the IVDMD, RFV, and VFA values of all mixtures. During agricultural residue fermentation, the pH was stable, and propionic acid was the primary fatty acid synthesized, indicating increased energy availability for efficient cattle growth performance while limiting molecular hydrogen (H2) synthesis for conversion to methane (CH4). These results suggest that L. fusiformis could be used as a direct-feed microbial to promote sustainable livestock production. To the best of our knowledge, this is the first report to link the fermentation of fibrous agricultural residues in ruminal fluid inoculated with a fibrolytic native strain and digestibility in favour of increasing the efficiency of livestock production.
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引用次数: 0
Bacterial or fungal origin phytase enzyme affects the performance and mineralization of calcium and phosphorus differently in broiler chickens fed deficient calcium and phosphorous diets 细菌源植酸酶和真菌源植酸酶对缺钙、缺磷肉鸡生产性能和钙、磷矿化的影响不同
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-25 DOI: 10.1080/09712119.2023.2270506
Baseer Ahmad, Muhammad Tahir, Shabana Naz, Ibrahim A. Alhidary, Sina Gul
ABSTRACT Three Ca-P deficient diets viz., Diet-1 (0.85%, 0.35%), Diet-2 (0.75%, 0.30%) and Diet-3 (0.65%, 0.25%) were prepared and supplemented with either bacterial or fungal origin phytase enzymes and were compared with a control diet (1.0% and 0.45%). A total of 280 broiler (Ross 308) chicks were randomly allocated into 7 treatments having 4 replicates of 10 chicks using a completely randomized design. The effect of bacterial phytase on the growth, FCR and carcass weight was significantly (P < 0.05) higher in chicks on Diet-1 compared to diet-3 (28 days). Bacterial phytase increased serum minerals (Ca and P) and tibia ash in diet-1 compared to Diet-3. Tibia Ca was significantly (P < 0.05) higher in the control and the three diets under bacterial phytase compared to other treatments. On Diet-3, more Ca and P were reflected in tibial by bacterial phytase but did not support the optimum growth performance of broiler chicks. In conclusion, the same phytase but of different origins might have specific individual effects on the growth performance, serum and tibia Ca and P in broilers.
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引用次数: 0
Removal of sorghum stover from feed choices has no confounding effect on the quantity and quality of diets selected by group or individually fed sheep 从饲料选择中去除高粱秸秆对组饲或单饲羊选择的日粮数量和质量没有混淆影响
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-19 DOI: 10.1080/09712119.2023.2260450
Bulelani Nangamso Pepeta, Mehluli Moyo, Festus Adeyemi Adejoro, Abubeker Hassen, Ignatius Verla Nsahlai
The study determined the effect of reducing dietary ingredients and group feeding on diet selection, nutrient intake and digestibility in choice-fed sheep. Three feeds comprising of veld hay (VH), sorghum stover (SS) and maize stover (MS) were offered ad-libitum while lucerne hay (LH) and bean straw (BS) were offered at restriction. Twelve sheep were allocated into three groups (i) group-fed in 3 sheep per pen, (ii) individually fed and, (iii) individually fed with SS exclusion. Sheep were rotated across the groups in four periods of 10 days. Diet selected, intake, refusals, spillages and faeces were monitored for seven days. The proportion of BS and LH consumed did not differ between group-fed and individually fed sheep with or without SS inclusion. Intake of MS and SS was lower in individually fed sheep while intake of VH was higher (p < 0.05). The proportion of BS and MS selected among individually fed sheep was similar with or without SS inclusion (p > 0.05). Diet selection was influenced by group feeding, but not the removal of SS. The scarcity of one dietary component may not result in the selection of undesired but available feeds if the quality is similar or poorer to the absent feed.
研究了减少饲粮成分和分组饲喂对选饲羊日粮选择、营养物质摄入量和消化率的影响。草地干草(VH)、高粱秸秆(SS)和玉米秸秆(MS) 3种饲料自由饲喂,苜蓿干草(LH)和豆秸(BS) 3种饲料限时饲喂。将12只羊分为3组(1)群饲,每栏3只羊;(2)单饲;(3)单饲,SS排除。羊在10天的四个阶段轮流在各组中进行。对饮食选择、摄入、拒绝、溢出和粪便进行为期7天的监测。添加或不添加SS的组饲和单饲绵羊消耗BS和LH的比例无显著差异。单采羊MS和SS采食量较低,VH采食量较高(p < 0.05)。添加或未添加SS的单饲羊中,BS和MS的选择比例相近(p > 0.05)。日粮选择受组饲的影响,但不受SS去除的影响。如果一种日粮成分的缺乏与缺失的饲料质量相似或更差,则可能不会导致选择不需要但可用的饲料。
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引用次数: 0
Phenotypic characterization of indigenous sheep breeds in the Jimma Zone, Oromia, Ethiopia 埃塞俄比亚奥罗米亚Jimma地区本地绵羊品种的表型特征
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-19 DOI: 10.1080/09712119.2023.2266667
Yaregal Derbie, Hailu Tilahun
The objective of the study was to undertake phenotypic characterization of sheep, in their production environment. A total of 570 sheep were used in this study for body measurements. After the data were collected, using the Proc GLM model, quantitative data were analysed by SAS version 9.3 (2014) and qualitative data were analysed by SPSS. The dominant coat colour pattern observed was 81.1% plain, 16.4% patchy and sheep with spotted pattern (2.5%), respectively. Brown (43.5%), fawn (17.5%) and red (13.0%) were the most frequently observed coat colour types. The majority (91.1%) of sheep were polled whereas (8.9%) of the sheep were horned. The effect of the district on body weight and most of the linear body measurements were significant (p < 0.05) except head length, canon bone length, ear length and tail length. Chest girth explains more variation than any other linear body measurements in both ewes (94%) and rams (93%). The prediction of body weight based on regression equation y = −21.82 + 0.68x for female sheep and y = −49.90 + 1.08x for male sheep, where y and x are body weight and chest girth, respectively. In general, it could help as an input for efficient utilization, conservation and improvement in the future.
该研究的目的是在绵羊的生产环境中进行表型表征。在这项研究中,总共有570只羊被用于身体测量。收集数据后,采用Proc GLM模型,定量数据采用SAS version 9.3(2014)进行分析,定性数据采用SPSS进行分析。主要毛色为平纹(81.1%)、斑纹(16.4%)和斑点(2.5%)。棕色(43.5%)、小鹿色(17.5%)和红色(13.0%)是最常见的被毛颜色。大多数羊(91.1%)被投票,而(8.9%)的羊被角。除头长、骨长、耳长和尾长外,地区对体重和大部分线性体尺的影响均显著(p < 0.05)。在母羊(94%)和公羊(93%)中,胸围比任何其他线性身体测量解释了更多的变化。母羊体重预测公式为y = - 21.82 + 0.68x,公羊体重预测公式为y = - 49.90 + 1.08x,其中y为体重,x为胸围。总的来说,它可以作为今后有效利用、养护和改进的一种投入。
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引用次数: 0
Haematological alterations under the anti-helminthic application in Pavo cristatus 抗虫剂应用对水蛭血液学的影响
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-11 DOI: 10.1080/09712119.2023.2265955
Shabana Naz, Azhar Rafique, Asma Ashraf, Sajida Batool, Ibrahim A. Alhidary, Shamsuddin Shamsi
Anti-helminthic drugs (Albendazole and Levamisole) trials were conducted on Indian Peafowls (n = 20) kept at Jallo Wildlife Park, Lahore, Pakistan for 15. Sampling was conducted on days 7 and 15 of treatments. The results showed that the WBC count was significantly (P < 0.05) higher in both samples in response to Levamisole treatment. Haemoglobin (HGB) and Mean Corpuscular Haemoglobin Concentration (MCHC) concentration increased significantly (P < 0.05) in response to both treatments; however, Mean Corpuscular Haemoglobin (MCH) decreased significantly (P < 0.05) in Albendazole-treated birds on both the sampling days compared to the control. Red Blood Cell Distribution Width-Standard Deviation (RDW-SD) decreased significantly (P < 0.05) in all treatment groups. On the other hand, the prevalence of eggs per gram (EPG) was reduced by 20% after the application of Levamisole on days 7 and 15. It was concluded that both drugs had significant effects on WBCs, HGB, MCH, MCHC and RDW-SD.
抗蠕虫药物(阿苯达唑和左旋咪唑)在巴基斯坦拉合尔Jallo野生动物园饲养15年的印度孔雀(n = 20)身上进行了试验。在处理第7天和第15天取样。结果显示,左旋咪唑治疗后,两组患者白细胞计数均显著升高(P < 0.05)。血红蛋白(HGB)和平均红细胞血红蛋白浓度(MCHC)浓度均显著升高(P < 0.05);然而,与对照组相比,阿苯达唑处理的鸟类在两个采样日的平均红细胞血红蛋白(MCH)均显著降低(P < 0.05)。各治疗组红细胞分布宽度-标准差(RDW-SD)显著降低(P < 0.05)。另一方面,左旋咪唑在第7天和第15天的每克卵(EPG)发生率降低了20%。结果表明,两种药物对wbc、HGB、MCH、MCHC和RDW-SD均有显著影响。
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引用次数: 0
Garlic ( Allium sativum ), fenugreek ( Trigonella foenum-graecum ) and coriander ( Coriandrum sativum ): performance, nutrient digestibility and blood metabolites in broilers 大蒜(Allium sativum)、胡芦巴(Trigonella foenum-graecum)和香菜(Coriandrum sativum)肉鸡生产性能、营养物质消化率和血液代谢物
4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2023-10-11 DOI: 10.1080/09712119.2023.2264966
Abdul Hafeez, Said Shahid Ali, Junaid Akhtar, Shabana Naz, Ibrahim A. Alhidary, Muhammad Israr, Rifat Ullah Khan
The effects of the inclusion of a selected herbal mixture consisting of fenugreek, garlic and coriander (FGC) in different levels of growth performance, digestibility of nutrients and blood biochemicals in broiler chickens (Cobb 500) were studied in a 42-day experiment on 360 broilers, which were grouped into 4 treatments. The dietary treatments consisted of a basal diet (control) and the same diet with the addition of FGC at rates of 1%, 2%, and 3%. The results showed that the treatment groups exhibited a significantly lower feed intake (P < .01) than the control group. However, significantly (P < .05) higher weight gain was recorded in birds fed with a 1% and 3% mixture of FGC. Significantly (P < .05) higher digestibility of nutrients was found in birds fed with a 1% herbal mixture. The results showed that the blood cholesterol profile was significantly (P < .05) lower in birds fed with a 1% mixture of herbs. In conclusion, an improvement in performance, nutrient digestion and lipid profile was observed in broilers when the herbal mixture of fenugreek, garlic and coriander was added to their diet at the rate of 3%, However, blood lipid profile was better when in response to 1% mixture.
通过对360只肉仔鸡进行为期42天的试验,研究了添加葫芦巴、大蒜和香菜(FGC)对不同水平肉鸡(Cobb 500)生长性能、营养物质消化率和血液生化物质的影响。饲粮处理包括基础饲粮(对照)和添加1%、2%和3% FGC的相同饲粮。结果表明:各处理组采食量显著低于对照组(P < 0.01)。然而,饲粮中添加1%和3% FGC的雏鸟增重显著(P < 0.05)高于对照组。饲粮中添加1%草药的雏鸟对营养物质的消化率显著提高(P < 0.05)。结果表明,饲粮中添加1%草药可显著(P < 0.05)降低血胆固醇水平。综上所述,胡芦巴、大蒜和香菜混合草药以3%的添加率提高了肉仔鸡的生产性能、营养物质消化和血脂水平,但以1%的添加率提高了肉仔鸡的血脂水平。
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引用次数: 0
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Journal of Applied Animal Research
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