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Performance of hilly and naked neck hilly chicken at Naikhongchari of Bangladesh 孟加拉奈洪查里山鸡和裸颈山鸡的表演
Pub Date : 2022-09-28 DOI: 10.3329/bjas.v51i3.61789
M. Alam, R. Khatun, M. Hasan, M. Rakib, M. Hossain
A study was conducted to evaluate the production and hatching performances of hilly chickens and naked neck (NN) hilly chickens at the hilly areas of Naikhongchari regional station research farm of Bangladesh Livestock Research Institute (BLRI). The experimental chickens were reared in an open-sided poultry house under an intensive management system for a period of 18 month. The birds were allowed to take feed and clean drinking water ad libitum. Data on productive and reproductive performances of hilly and NN hilly chickens were recorded regularly. Result revealed that no significant (P>0.05) difference on body weight of day old, 2nd weeks and 4th weeks of age but significantly (P<0.05) differ on 6th to 12th weeks of age on hilly and NN hilly chicken. Result also showed that average feed intake and mortality percentage at day old to 12th weeks of age were significantly (P<0.05) differ among hilly and NN hilly chicken. It was found that no significant (P>0.05) difference of egg weight and chick weight between hilly and NN hilly chicken but significantly (P<0.05) differed in hatchability percentage. On the other hand, result exhibited that average body weight (ABW) of cock and hen, feed intake and mortality were significantly (P<0.05) differed among hilly and NN hilly chicken. Hen days egg production was significantly (P<0.05) differed between hilly and NN hilly chicken but no significant (P>0.05) difference of average total egg weight and age at first egg. These findings imply that Hilly chicken performance was better than NN hilly chicken in terms of body weight (BW), age at first egg (AFE) and egg production. Both hilly (feathered) and NN hilly chickens need to be conserved and improved further through selective breeding and a better management system. Bangladesh Journal of Animal Science 51 (3): 133-137, 2022
在孟加拉国畜牧研究所(BLRI)奈洪查里(Naikhongchari)区域站研究农场的丘陵地区,对丘陵鸡和裸颈丘陵鸡的生产和孵化性能进行了研究。试验鸡在开放式鸡舍内集约化饲养18个月。这些鸟被允许随意取食和清洁饮用水。定期记录丘陵鸡和非丘陵鸡的生产和繁殖性能数据。结果表明:丘陵鸡和NN丘陵鸡日龄、2周龄和4周龄体重差异不显著(P < 0.05),蛋重和鸡重差异显著(P < 0.05),平均总蛋重和初蛋龄差异显著(P < 0.05)。综上所述,丘陵鸡的生产性能在体重(BW)、初蛋龄(AFE)和产蛋量方面均优于NN丘陵鸡。山地鸡和非山地鸡都需要通过选择育种和更好的管理制度来进一步保护和改进。动物科学学报,51 (3):133-137,2022
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引用次数: 0
Fenugreek (Trigonella foenum-graecum) extract improves hyperglycemia and hyperlipidemia in high sugar diet fed mice 胡芦巴提取物改善高糖饲料喂养小鼠的高血糖和高脂血症
Pub Date : 2022-09-28 DOI: 10.3329/bjas.v51i3.61784
R. Chacrabati, T. Afrin, M. Hasan, C. Goswami
Diabetes, obesity and other cardiovascular diseases are major public health problems that are increasing at an alarming rate. Diabetics and obesity are characterized by high blood glucose level caused by high sugar consumption. New treatment techniques are needed that can lower blood glucose levels without causing any negative effects. Fenugreek known as Methi in Bangla, has been well known to have medicinal properties, such as antidiabetic, anti-hyperlipidaemic, anti-inflammatory, anticancer, antioxidant, and neuroprotective activities. Thus, the supplementation of fenugreek could be an alternative diet that could mitigate the deleterious effect of high sugar consumption and prevent the development of metabolic diseases. Therefore, this experiment was designed to investigate the effect of Fenugreek extract (FE) supplementation on anti-hyperglycemic and anti-hyperlipidemic activities in high sugar diet (HSD) fed mice. Four diet paradigms were selected for this experiment- viz., normal diet (ND), normal diet with Fenugreek extract (ND+FE), 30% sucrose (HSD), and 30% sucrose with Fenugreek extract (HSD+FE). The supplementation of FE (300mg/kg BW) significantly (*p<0.05) hampers the increase in food intake due to high sugar diet consumption in mice. Additionally, mice fed with FE enriched diet significantly lowered body weight as compared with the HSD group. Also, FE supplementation significantly attenuated the increased blood glucose concentration caused by high sugar intake. The inclusion of FE had no effect on heart weight, kidney weight, white adipose tissue and brown adipose tissue but significantly decreased the increased weight of the liver in the HSD-fed group. In addition, FE supplementation also attenuated the HSD-induced elevation of serum total cholesterol (TC), triglycerides (TAG), and low-density lipoprotein C (LDL-C). Considering the above findings, FE could effectively tolerate a normoglycemic state and inhibit the development of diabetics and obesity caused by HSD. Therefore, FE could be beneficial for the management of metabolic disorders due to consumption of high sugar. Bangladesh Journal of Animal Science 51 (3): 90-97, 2022
糖尿病、肥胖和其他心血管疾病是正在以惊人的速度增加的主要公共卫生问题。糖尿病和肥胖症的特点是高糖消耗引起的高血糖。我们需要新的治疗技术,既能降低血糖水平,又不会造成任何负面影响。胡芦巴在孟加拉国被称为Methi,具有抗糖尿病、抗高脂血症、抗炎、抗癌、抗氧化和神经保护活性等药用特性。因此,补充胡芦巴可能是一种替代饮食,可以减轻高糖消耗的有害影响,防止代谢疾病的发展。因此,本实验旨在研究添加胡芦巴提取物(FE)对高糖饲料(HSD)小鼠降血糖和降血脂活性的影响。试验选择4种饲粮模式,分别为正常饲粮(ND)、正常饲粮加胡芦巴提取物(ND+FE)、30%蔗糖(HSD)和30%蔗糖加胡芦巴提取物(HSD+FE)。饲粮中添加FE (300mg/kg BW)显著(*p<0.05)抑制了小鼠高糖饮食引起的进食量增加。此外,与HSD组相比,饲喂富铁饲料的小鼠体重显著降低。此外,补充铁显著降低了高糖摄入引起的血糖浓度升高。添加FE对hsd组大鼠心脏、肾脏、白色脂肪组织和棕色脂肪组织均无影响,但显著降低了hsd组大鼠肝脏增重。此外,补充FE还可以降低hsd诱导的血清总胆固醇(TC)、甘油三酯(TAG)和低密度脂蛋白C (LDL-C)的升高。综上所述,FE可以有效耐受正常血糖状态,抑制HSD引起的糖尿病和肥胖的发展。因此,FE可能有利于管理由于高糖消耗引起的代谢紊乱。动物科学学报,51 (3):90-97,2022
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引用次数: 0
Synbiotic, probiotic and neem leaf as alternatives to antibiotic growth promoter in broiler diet 合成菌、益生菌和楝叶在肉仔鸡饲粮中替代抗生素生长促进剂的研究
Pub Date : 2022-09-28 DOI: 10.3329/bjas.v51i3.61788
M. Ahammed, MN Rahman
The feeding trial was carried out to compare the effect of probiotic, synbiotic and neem (Azadirachta indica) leaf as alternatives to antibiotic in broiler chicken diets. The experiment was performed for a period of 28 days with a number of 500 day-old straight run broiler chicks. Birds were divided into five dietary treatment groups with 4 replications having 25 birds in each. The dietary groups were; control (Basal diet), synbiotic, probiotic, neem leaf powder (NLP) and antibiotic group. The experimental diets were consisted as broiler starter (day-old to 14 days) and broiler grower (15 to 28 days). The supplementation of synbiotic, probiotic, NLP and antibiotic in the broiler diets had significant effect on growth performance. Diets supplemented with synbiotic showed significantly (p<0.05) higher live weight and weight gain at the end of the experiment compare to the control and antibiotic group. NLP and probiotic supplemented groups also showed significantly higher (p<0.05) body weight and body weight gain compared to control and showed almost similar performance compared to antibiotic group. Better FCR (p<0.05) was also noticed in synbiotic group (1.60) compare to the control (1.79), antibiotic group (1.65), NLP group (1.69) and probiotic group (1.70). There were no significant differences in meat quality characteristics among the dietary groups. The cost of production per kg of live broiler was slightly lower in synbiotic group compared to control and antibiotic groups. With regards to profit, synbiotic groups showed higher profitability than other groups. The result indicated that supplementation of synbiotic, probiotic and NLP in broiler diet had a positive effect on growth performance and profitability. It is therefore suggest that the synbiotic, probiotic and NLP could be potential feed additives in broiler diet and synbiotic could be considered as a better antibiotic alternative for broiler production. Bangladesh Journal of Animal Science 51 (3): 122-132, 2022
本试验旨在比较益生菌、合成菌和印楝叶在肉鸡饲粮中替代抗生素的效果。试验选用500日龄直饲肉鸡,试验期28 d。试验禽分为5个饲粮处理组,每组4个重复,每个重复25只。饮食组是;对照组(基础饲粮)、合成菌组、益生菌组、印楝叶粉组和抗生素组。试验饲粮分为肉仔鸡起始日龄(1日龄~ 14日龄)和生长日龄(15 ~ 28日龄)。在肉鸡饲粮中添加合成菌、益生菌、NLP和抗生素对肉鸡生长性能有显著影响。试验结束时,与对照组和抗生素组相比,添加合成菌组的活重和增重显著(p<0.05)提高。NLP组和益生菌组的体重和增重均显著高于对照组(p<0.05),且与抗生素组基本持平。与对照组(1.79)、抗生素组(1.65)、NLP组(1.69)和益生菌组(1.70)相比,合成菌组(1.60)的FCR显著提高(p<0.05)。饲粮组间肉质性状无显著差异。与对照组和抗生素组相比,合成菌组每公斤活肉鸡的生产成本略低。在利润方面,合成组的盈利能力高于其他组。由此可见,在肉鸡饲粮中添加合成菌、益生菌和NLP对肉鸡生长性能和盈利能力均有积极影响。综上所述,合成菌、益生菌和NLP均可作为肉鸡饲粮中潜在的饲料添加剂,合成菌可作为肉鸡生产中较好的抗生素替代品。动物科学学报,51 (3):122-132,2022
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引用次数: 1
Efficacy of bacterial phytase, citric acid and their combination in broiler fed inorganic phosphorus free diet 细菌植酸酶、柠檬酸及其组合在无无机磷肉鸡饲粮中的效果
Pub Date : 2022-09-28 DOI: 10.3329/bjas.v51i3.61786
S. Munmun, MA Rahman, K. Islam, R. Chowdhury
Present study was conducted to assess the efficacy of Escherichia Coli derived phytase alone or with citric acid (CA) given inorganic phosphorus (P) free broiler diet.  Ninety six one-day old COBB-500 male broilers were divided into four groups and fed one of the following diets for a period of 35 days: positive control (PC) diet formulated based on the NRC (1994) recommendations, negative control (NC) diet (inorganic P free diet; containing 0.20% lower P than that in the PC diet), and two other diets were formulated by adding only phytase (500 FTU/kg of feed) or phytase with CA (500 FTU/kg of feed with 2 % CA) in the NC diet. Growth performance, serum minerals concentration, tibia and shank characteristics, and nutrient retention were measured. Impaired growth performance (final BW, BW gain, and FCR) in broilers (NC group) fed inorganic P free diet was restored with the addition of phytase in NC diet. Best FCR (1.83) was recorded in phytase added group and worst in NC group (2.03), however, further addition of CA with phytase did not show any significant variation. Lowest concentration of serum P (mg/dl), tibia P (%) and shank P (%) were ameliorated (P<0.05) by the addition of phytase, and the restoration magnitude was non-significantly greater in phytase with CA group. Retention of total P (%) in broilers given phytase added diet was comparable with broilers given PC diet, although the former diet contained lower level of available P in diet than the later one. Addition of CA further increased this retention (%) numerically. Broilers fed inorganic P free diet deficient in available P, with Escherichia Coli derived phytase showed the growth performance (P<0.05) and relative retention of P comparable with broilers fed NRC (1994) recommended one. Therefore, relying on Escherichia Coli derived phytase alone in available P deficient diet may be viable to ensure sufficient supply of P in broilers diets. Bangladesh Journal of Animal Science 51 (3): 107-114, 2022
本试验旨在评价大肠杆菌衍生植酸酶单独或与柠檬酸(CA)混合在无无机磷(P)肉鸡饲粮中的效果。选取96只1日龄COBB-500雄性肉仔鸡,随机分为4组,分别饲喂按NRC(1994)推荐标准配制的正对照(PC)饲粮、负对照(NC)饲粮(无无机磷饲粮;在NC日粮中分别添加植酸酶(500 FTU/kg饲料)或植酸酶加CA (500 FTU/kg饲料加2% CA)。测定生长性能、血清矿物质浓度、胫骨和小腿特征以及营养物质潴留。在无无机磷饲粮中添加植酸酶可恢复肉仔鸡(NC组)的生长性能(最终体重、体重增重和料重比)。植酸酶添加组的FCR最好(1.83),NC组最差(2.03),但添加植酸酶的CA对FCR无显著影响。添加植酸酶可改善血清P (mg/dl)最低浓度、胫骨P(%)和小腿P (%) (P<0.05),且植酸酶加CA组恢复幅度无显著性差异。添加植酸酶的饲粮中总磷的保留率(%)与添加PC的饲粮相当,但前者的有效磷含量低于后者。CA的加入在数值上进一步提高了保留率(%)。饲粮中添加大肠杆菌衍生植酸酶、缺乏有效磷的无无机磷肉鸡的生长性能(P<0.05)和磷的相对留存率与饲喂NRC(1994)推荐饲料的肉鸡相当。因此,在有效缺磷饲粮中单独依赖大肠杆菌衍生植酸酶可能是可行的,以确保肉仔鸡饲粮中磷的充足供应。动物科学学报,31 (3):107-114,2022
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引用次数: 1
Effect of dried orange peel on egg production and quality of laying hen 干橙皮对蛋鸡产蛋量及品质的影响
Pub Date : 2022-09-28 DOI: 10.3329/bjas.v51i3.61785
ST Ahmed, M. Hasan, S. Resmi, MW Islam, Muhammad Fazalul Rahman
Utilization of agricultural by-products in animal nutrition is a practice as old as the domestication of animals. The dried orange peel (DOP), by-product of citrus industry is a promising source of diversified bioactive ingredients with beneficial effects on health. Therefore, this study was carried out to assess the dietary effect of DOP on production and, internal and external egg quality characteristics of laying hens. A total of 60 layers of 25 weeks of age were segregated into three dietary treatment groups using a completely randomized design and reared up to 42 weeks. The dietary treatments were control (basal diet), 5% DOP (basal diet + 5% DOP), and 10% DOP (basal diet + 10% DOP). The study revealed that dietary DOP significantly decreased the feed consumption and feed conversion ratio of layers (p < 0.05) without having any significant effects on egg production, egg weight and egg mass. None of the exterior egg quality parameters were significantly affected by the dietary supplementation of DOP (p > 0.05). Among interior egg quality attributes, the albumen height, albumen index, yolk color, and Haugh unit were all considerably elevated through supplementation of 10% DOP (p < 0.05). Nevertheless, the yolk index was raised by both 5% and 10% DOP supplementation (p < 0.05).  The relative weight of ovarian grape and oviduct did not affect by the supplementation of DOP with layer diet (p > 0.05). In summary, it may be said that layer diets can be supplemented with DOP up to 10% level to improve FCR, albumen index, yolk index, yolk color and Haugh unit without compromising egg production or exterior egg quality. Further studies are recommended with layer diets supplemented with DOP at levels higher than 10% to determine the ideal DOP dose during other production periods in various layer strains. Bangladesh Journal of Animal Science 51 (3): 98-106, 2022
利用农业副产品作为动物营养是一种与驯养动物一样古老的做法。柑桔干皮是柑桔工业的副产品,具有多种有益健康的生物活性成分。因此,本试验旨在评价饲粮中添加多磷对蛋鸡生产及蛋内外品质的影响。选用60只25周龄的蛋鸡,采用完全随机设计分为3个饲粮处理组,饲养至42周龄。饲粮处理为对照(基础饲粮)、5% DOP(基础饲粮+ 5% DOP)和10% DOP(基础饲粮+ 10% DOP)。结果表明,饲粮中添加多磷显著降低了蛋鸡的采食量和饲料系数(p < 0.05),但对产蛋量、蛋重和蛋质量无显著影响。饲粮中添加DOP对蛋外品质参数均无显著影响(p < 0.05)。在蛋内品质指标中,添加10% DOP显著提高了蛋白高度、蛋白指数、蛋黄颜色和哈夫单位(p < 0.05)。然而,添加5%和10% DOP均可提高蛋黄指数(p < 0.05)。蛋鸡饲粮中添加DOP对卵巢葡萄和输卵管的相对重量无显著影响(p < 0.05)。综上所述,蛋鸡饲粮中添加高达10%的DOP可在不影响产蛋量和蛋外观品质的前提下提高饲料效率、蛋白指数、蛋黄指数、蛋黄颜色和哈夫单位。建议在蛋鸡饲粮中添加10%以上的DOP,以确定不同蛋鸡品种在其他生产时期的理想DOP剂量。动物科学学报,51 (3):98-106,2022
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引用次数: 1
Meat processing and handling facilities in slaughterhouses of selected areas of Bangladesh 孟加拉选定地区屠宰场的肉类加工和处理设施
Pub Date : 2022-09-28 DOI: 10.3329/bjas.v51i3.61787
M. Alam, M. Hasan, M. Hossain, S. Ahemd, S. Hoque, M. Hossain, S. Rahman
The study was conducted to investigate the present status of meat processing facilities in different slaughterhouse of Bangladesh through field survey. The data was collected through interview schedule selecting 30 respondents (Butcher, Seller and Consumer) in Khulna, Rajshahi and Rangpur Division in Bangladesh. They were asked about knowledge of hygienic meat production, slaughterhouse environment, existing facilities, sanitation and waste management, opinion of the butcher, seller and consumers. It was obtained from the study indicating that approximately 75.63% of the animals were slaughtered at the abattoir. Only 5.8% of butchers (n=30) knew about the production of hygienic meat. Almost 100% of the abattoirs lacked hygiene and sanitation. Only 26.66% slaughtered carcasses were checked by veterinary surgeon where another 16.7% were checked by unskilled meat inspectors from the municipality. Only 23.33% of slaughterhouses were situated in environmentally friendly locations. Consumer perception revealed that only 3.33% of consumers have knowledge of meat hygiene. Meat is a great source of animal protein in our country but hygienic condition and facilities available in slaughterhouse were not satisfactory. Slaughterhouses both in rural or municipal areas were contaminated frequently and therefore meat and meat byproducts coming from such conditions often deteriorated through bacterial infection or contamination might be the cause of food poisoning or diseases in consumers. Bangladesh Journal of Animal Science 51 (3): 115-121, 2022
本研究是通过实地调查来调查孟加拉国不同屠宰场肉类加工设施的现状。数据是通过访谈计划收集的,在孟加拉国库尔纳、拉杰沙希和Rangpur地区选择了30名受访者(屠夫、卖家和消费者)。他们被问及有关卫生肉类生产、屠宰场环境、现有设施、卫生和废物管理的知识,以及屠夫、卖家和消费者的意见。从研究中获得的数据表明,大约75.63%的动物在屠宰场被屠宰。只有5.8%的屠夫(n=30)了解卫生肉类的生产。几乎100%的屠宰场缺乏卫生和环境卫生。只有26.66%的屠宰胴体由兽医检查,另外16.7%由市政当局不熟练的肉类检查员检查。只有23.33%的屠宰场位于环保地点。消费者认知显示,仅有3.33%的消费者具有肉类卫生知识。肉类是我国动物蛋白的重要来源,但屠宰场的卫生条件和设施并不令人满意。农村或城市地区的屠宰场经常受到污染,因此,在这种条件下生产的肉类和肉类副产品往往因细菌感染或污染而变质,这可能是消费者食物中毒或疾病的原因。动物科学学报,51 (3):115-121,2022
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引用次数: 0
Herbage mass of Teosinte (Euchlaena mexicana) grown as mono and mixed with legumes 大刍草(墨西哥大刍草)的牧草块,单株种植,与豆科植物混合
Pub Date : 2022-06-30 DOI: 10.3329/bjas.v51i2.60494
B. Khanal, N. Devkota, Munmun Tiwari, N. Gorkhali
The popular summer cereal fodder is Teosinte (Euchlaena mexicana) which has low productivity and chemical constituents. The quality and quantity of teosinte fodder can be enhanced by adjusting cultivation practices including use of appropriate sowing dates and by following an appropriate mixed cropping cultivation with legumes. This study was conducted to identify the fodder quantity and quality under a commonly practiced mixed cultivation of legumes with teosinte with varied sowing dates. Three combination of fodder; teosinte, teosinte+cowpea and tesosinte+rice bean was arranged in four sowing dates in Split Plot Design, replicated five times. Sowing dates were arranged as main plot while combination of fodder species was arranged as sub plot. Growth parameters of teosinte (tiller numbers/m2, plant height), green herbage mass, dry herbage mass, crude protein (CP), acid detergent fiber (ADF) and neutral detergent fiber (NDF) were determined. The results showed significantly highest (p<0.05) cumulative green and dry herbage mass was obtained from teosinte+cowpea, if sown in 18th  April followed by 28th April for the same combination of treatments. Significantly the highest (p<0.001) average value of CP was obtained from teosinte+cowpea whereas the highest (p<0.001) average value of NDF and ADF were obtained from teosinte mono crop. The effect of date of sowing and treatments interaction/combination on average value of CP, NDF and ADF were statistically similar (p>0.05). The result of this experiment indicated that teosinte sown with cowpea in 18th  April might be the best combination to produce high herbage mass as well as better quality of fodder.Bangladesh Journal of Animal Science. 2022. 51 (2): 47-54
流行的夏季谷物饲料是大刍草(Euchlaena mexicana),其生产力和化学成分较低。通过调整栽培方法,包括使用适当的播种日期和采用适当的豆科作物混合种植,可以提高大刍草饲料的质量和数量。本试验旨在确定不同播期豆科植物与大刍草混合栽培条件下的饲料数量和质量。三种组合饲料;大刍草、大刍草+豇豆和大刍草+水稻豆在4个播期,采用裂畦设计,重复5次。播期为主小区,饲料品种组合为副小区。测定了大刍草的生长参数(分蘖数/m2、株高)、绿草质量、干草质量、粗蛋白质(CP)、酸性洗涤纤维(ADF)和中性洗涤纤维(NDF)。结果有显著性差异(p0.05)。结果表明,4月18日播大刍草与豇豆可能是获得较高牧草质量和较好饲料品质的最佳组合。孟加拉国动物科学杂志。2022。51 (2): 47-54
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引用次数: 0
Changes in morphology, nutrient content and production costs of hydroponic wheat as fodder 水培小麦饲料形态、养分含量及生产成本的变化
Pub Date : 2022-06-30 DOI: 10.3329/bjas.v51i2.60498
M. Bari, M. Islam, MM Islam, M. Habib, M. Sarker, M. Sharmin, M. Rashid, Ma Islam
This study was conducted to investigate the changes in morphology, biomass yield, chemical composition and production cost of Hydroponic Wheat Fodder (HWF) with the advancement of growing days. The HWF was cultivated at low cost sprouting house at the Bangladesh Agricultural University (BAU) Dairy Farm, Mymensingh, Bangladesh. Firstly, wheat grains were collected, washed and then soaked in tap water for 12 h. Thereafter, grains were wrapped with a gunny bag for 24 h for germination. Then, grains were spread out in trays and irrigated using tap water up to 8th day morning. Biomass yield, morphological, nutritional parameters and cost of production were determined daily from each of the eight batches (day, 0 to 8) in the sprouting house.  An increasing trend was seen in biomass yield, plant height, root length and root number of HWF with the days of advancement and found highest on 8th day (p=0.000). Biomass yield was increased 6 times during this 8 days cycle. On the contrary, a decreasing trend was observed in cost of production (0-5th day) and found lowest (BDT. 5.00) value in day 6th -8th (p < 0.001). A strong positive (r=0.891-0.989) correlation exists between biomass yield and morphological features (p < 0.001). Whereas, cost of production negatively (r=-0.857--0.946) correlated with biomass yield and morphological parameters (p < 0.001). The dry matter content of HWF reduced (p <0.001) gradually from day 0 to 8. The crude protein, ether extracts and minerals (calcium, phosphorus and magnesium) content of HWF increased positively from day 0 to 8 but nitrogen-free-extracts and organic matter declined (p < 0.001) gradually. However, morphology, biomass yield, chemical composition and production cost of fodder were similar between the days of 7 to 8. Finally, farmers might grow HWF up to 7-8 days as a new source of livestock feed. Bangladesh Journal of Animal Science, 51 (2): 68-80.
本试验旨在研究水培小麦饲料(HWF)形态、生物量、化学成分和生产成本随生育期的变化。该品种在孟加拉国农业大学(BAU)奶牛场的低成本苗房中培育。首先收集小麦籽粒,洗净后用自来水浸泡12 h,然后用麻袋包裹24 h发芽。然后将籽粒铺成托盘,用自来水灌溉至第8天早晨。从8个批次(第0 ~ 8天)中每批次每天测定生物量产量、形态、营养参数和生产成本。生物量、株高、根长、根数均随生育期的增加而增加,其中第8天最高(p=0.000)。在这8天的周期内,生物量产量增加了6倍。相反,生产成本(0-5天)呈下降趋势,BDT最低。5.00)值在第6 -8天(p < 0.001)。生物量产量与形态特征呈显著正相关(r=0.891 ~ 0.989) (p < 0.001)。而生产成本与生物量产量和形态参数呈负相关(r=-0.857 ~ 0.946) (p < 0.001)。从第0 ~ 8天,HWF干物质含量逐渐降低(p <0.001)。粗蛋白质、粗脂肪和矿物质(钙、磷、镁)含量在第0 ~ 8天呈显著上升趋势,无氮提取物和有机质含量逐渐下降(p < 0.001)。但在第7 ~ 8天,饲料形态、生物量、化学成分和生产成本基本相同。最后,农民可以种植7-8天的HWF作为牲畜饲料的新来源。动物学报,51(2):68-80。
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引用次数: 0
Sensorial, chemical and microbial quality of spongy rosogolla 海绵状蔷薇菌的感官、化学和微生物品质
Pub Date : 2022-06-30 DOI: 10.3329/bjas.v51i2.60499
Md. Arafat Hossain, Mmh Khandakar, M. Islam, M. Islam
The goal of this investigation was to compare the physical, chemical and microbial qualities of laboratory made and market spongy rosogolla. Two types of spongy rosogolla were made in laboratory from the cow and buffalo milk chhana to reveal the quality in regards of the species and three types of market spongy rosogolla were collected from three different shops. With regard to the physical attributes, laboratory made spongy rosogolla were found better than the market spongy rosogolla and cow milk spongy rosogolla was the best. In chemical aspects, laboratory made spongy rosogolla had greater pH, fat, protein, and ash content, whereas, market spongy rosogolla showed higher acidity and carbohydrate content. The moisture content of cow milk spongy rosogolla was highest. The mineral contents (Ca, P, and Mg) were also differed significantly (p<0.01) among the samples except for Na content. Highest Ca, P and Mg contents were found in market spongy rosogolla. The total viable count (TVC) was significantly (p<0.01) lower in laboratory made spongy rosogolla. However, the Escherichia coli count was found similar (p>0.05) in both cow and buffalo milk spongy rosogolla but lower (p>0.05) than other market spongy rosogolla samples. Considering all the findings, it may be concluded that the quality of market spongy rosogolla needs improvement and responsible authorities might take necessary initiatives for monitoring. Bangladesh Journal of Animal Science, 51 (2): 81-84.
本研究的目的是比较实验室生产的和市售的海绵状红曲的物理、化学和微生物品质。以牛乳和水牛乳为原料,在实验室制备了两种海绵状牛粪,以揭示其种类的质量;并从三个不同的商店采集了三种市场海绵状牛粪。在物理属性方面,实验室生产的海绵状牛蒡优于市场销售的海绵状牛蒡,以牛奶海绵状牛蒡最好。化学方面,实验室生产的海绵状红曲pH值、脂肪、蛋白质和灰分含量较高,而市场生产的海绵状红曲酸度和碳水化合物含量较高。牛乳海绵菌的水分含量最高。牛乳和水牛乳中矿物质含量(Ca、P、Mg)差异极显著(p0.05),但低于其他市售牛乳样品(P >0.05)。综上所述,可以得出结论,市场海绵体的质量需要改进,主管部门可以采取必要的措施进行监测。动物学报,51(2):81-84。
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引用次数: 0
Effect of Napier silage on milk production of Holstein Friesian Crossbred Cow 纳皮尔青贮对荷斯坦黑种杂交奶牛产奶量的影响
Pub Date : 2022-06-30 DOI: 10.3329/bjas.v51i2.60497
M. Habib, M. Akbar, ZH Khandaker
This work aspired to evaluate the quality of different types of silage on milk production made from whole napier grass, napier stem, and napier leaf. Napier grass (Pennisetum Purpureum) was harvested at 70 days of age and made into three types of silage in three different silo pits under proper anaerobic conditions for 45 days. A feeding program of 60 days duration was designed on nine (9) lactating (110-140 days after calving) Holstein Friesian crossbred dairy cows of 2nd parity (age 6-7 years, live weight 500±5 kg). The cows were divided into 3 groups and assigned to 3 dietary treatments, basal ingredients with whole napier grass silage (T1), basal ingredients with chopped napier leaf silage (T2), and basal ingredients with napier stem silage (T3). After ensiling, it was found that napier stem silage possesses the highest pH value indicating low-quality silage whereas napier leaf silage possesses the lowest pH value. The pH value of whole napier grass silage was slightly higher than that of napier leaf silage. Concentrations of CP and NH3-N were highest in napier leaf silage and lowest in napier stem silage. The CP value was almost similar in whole napier grass silage and napier leaf silage but the NH3-N value of whole napier grass silage was lower than that of napier leaf silage. Among the three groups, the cows of napier leaf silage group gave significantly (P<0.05) higher milk yield than the cows of whole napier grass and napier stem silage group. On the other hand, the cows of napier stem silage group gave significantly (P<0.05) lower milk yield than the cows of whole napier grass and napier leaf silage group. It can be concluded that napier leaf and whole napier grass silage are comparatively better than napier stem silage in respect to milk production of dairy cows. Bangladesh Journal of Animal Science, 51 (2): 62-67.
本研究旨在评价不同类型青贮饲料对全草、茎、叶产奶的影响。取70日龄的纳皮草(Pennisetum Purpureum),在适宜的厌氧条件下,在3个不同的筒仓坑中进行3种青贮,发酵45 d。试验选用9头泌乳期(产犊后110 ~ 140 d) 2胎荷斯坦弗里西亚杂交奶牛(6 ~ 7岁,活重500±5 kg),饲喂60 d。将奶牛分为3组,分别饲喂全草料基础青贮(T1)、碎叶青贮基础青贮(T2)、茎青贮基础青贮(T3) 3个饲粮处理。青贮后发现,青贮后青贮的pH值最高,表明青贮质量较低,青贮的pH值最低。全草青贮的pH值略高于叶青贮。CP和NH3-N含量以叶青贮最高,茎青贮最低。全草青贮和叶青贮的CP值基本相同,但全草青贮的NH3-N值低于叶青贮。3组中,叶青贮组奶牛产奶量显著(P<0.05)高于全草和茎青贮组奶牛。另一方面,茎青贮组奶牛的产奶量显著(P<0.05)低于全草和叶青贮组奶牛。综上所述,在奶牛产奶量方面,粗叶青贮和全粗草青贮相对优于粗茎青贮。动物学报,51(2):62-67。
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引用次数: 1
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Bangladesh Journal of Animal Science
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