Rotavirus infection in calves in Bangladesh     

S. A. Selim  K. M. S. Aziz  A. J. Sarker  H. Rahman 《Veterinary research communications》1991,15(4):327-333

Faecal samples from 434 calves under 1 year of age (307 diarrhoeal and 127 normal) were collected from three dairy farms and one village in selected areas of Bangladesh. The samples were tested by an enzyme-linked immunosorbent assay (ELISA) to detect the presence of rotavirus antigen. Of 402 dairy calves tested, 28 (7.0%) were positive, of which 21 (7.2%) were from diarrhoeic calves and 7 (6.3%) from non-diarrhoeic calves. Rotavirus infection varied from farm to farm (2.7–9.2%) and there was no positive response from any of the 32 village calves. Rotavirus was most commonly found in calves of 1 week of age or less (up to 22.2% in one group) but was not found in any calves later than 6 months of age. More than 80% of rotavirus-positive samples from diarrhoeic calves exhibited a titre of 128 or more (geometric mean 345±4.5), whereas non-diarrhoeal calves had titres less than or equal to 128 (geometric mean=29±1.9), suggesting that rotavirus infection in calves in Bangladesh was mostly associated with diarrhoea.  相似文献   

Diseases of the genital tract of indigenous cows in Bangladesh     

M. G. S. Alam  Abdur Rahman 《Tropical animal health and production》1979,11(1):179-180

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Prevalence of Leptospira serogroup-specific antibodies in cattle associated with reproductive problems in endemic states of India     

Balamurugan  Vinayagamurthy  Alamuri  Anusha  Bharathkumar  K.  Patil  Sharanagouda Siddanagouda  Govindaraj  Gurrappa Naidu  Nagalingam  Mohandoss  Krishnamoorthy  Paramanandham  Rahman  Habibur  Shome  Bibek Ranjan 《Tropical animal health and production》2018,50(5):1131-1138

Tropical Animal Health and Production - In this study, the seroprevalence and distribution of Leptospira in dairy cattle in endemic states of India were investigated in association with...  相似文献   

Carrier rate of the c.235G>C mutation in the bovine isoleucyl-tRNA synthetase (IARS) gene of Japanese Black cows at Kagoshima prefecture, Japan,and analysis of the metabolic profiling and reproductive performance of heterozygous cows     

Md Shafiqul ISLAM  Urara SHINYA  Mitsuhiro TAKAGI  Takao AKAHOSHI  Akira YABUKI  Shahnaj PERVIN  Tofazzal Md RAKIB  Mohammad Mahbubur RAHMAN  Martia Rani TACHARINA  Osamu YAMATO 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(2):254

Bovine isoleucyl-tRNA synthetase (IARS) disorder, a major cause of weak calf syndrome, is caused by a homozygous missense (c.235G>C) mutation in the bovine IARS gene of Japanese Black (JB) cattle, which was identified in 2013. However, the extent to which the carrier rate has changed at Kagoshima prefecture, Japan, and whether the carrier status is associated with any clinical or reproductive problems, have yet to be ascertained. In this study, using a real-time polymerase chain reaction-based genotyping assay, we determined the carrier rate in a regional JB cow population at Kagoshima prefecture. Comparative analyses were performed on the metabolic profile test (MPT) results and reproductive performance data obtained for heterozygous carrier and homozygous wild-type cows. In 2009 and 2018, DNA samples were collected from 130 and 462 clinically healthy JB cows, respectively, in Kagoshima prefecture. MPT results and reproductive performance data were evaluated for 62 cows, comprising four heterozygous carriers and 58 wild-type cows. Genotyping revealed that the carrier rate was 6.9% in 2009 and 1.5% in 2018, the difference of which was statistically significant (P<0.005). There were no statistically significant differences between the carrier and wild-type cows with respect to either MPT results or reproductive performance, indicating that the carrier cows have necessary IARS activity to maintain minimal health and reproductive potential.  相似文献   

New technique of sex preselection for increasing female ratio in boar sperm model     

Yoo-Jin Park  Ki-Jin Kwon  Won-Hee Song  Won-Ki Pang  Do-Yeal Ryu  Md Saidur Rahman  Myung-Geol Pang 《Reproduction in domestic animals》2021,56(2):333-341

In this study, we tried to optimize the porcine semen extender conditions to maximize the differences between live X chromosome-bearing (X) spermatozoa and to Y chromosome-bearing (Y) spermatozoa without a decline in the fertility rate at different pH conditions during storage. We observed the viability of X and Y boar spermatozoa in acidic (pH 6.2), original (pH 7.2), and alkaline condition (pH 8.2) for 5 days to investigate the effect of storage conditions on the X to Y spermatozoa ratio. The functional parameters of spermatozoa were also examined to evaluate sperm quality. Sperm motility was preserved at pH 7.2 and pH 6.2 for 3 days, while sperm motility at pH 8.2 decreased significantly after 2 days. Non-capacitated spermatozoa increased while capacitated spermatozoa decreased during storage. Sperm viability decreased significantly duration-dependent under all pH conditions, but there was no significant difference during storage at pH 6.2 and 7.2. The X: Y ratio of live spermatozoa in acidic condition was maximized (1.2:1) without affecting the sperm function and fertility-related protein expression after 2 days compared to original conditions. Moreover, insemination of sows using acidic extender increased the number of female pups on days 1 and 2 of preservation. These results indicate that the production of female offspring may increase when acidic BTS is used for 2 days without affecting the success rate of AI. Above all, this method is simple and economical compared to other methods.  相似文献   

A review of okara (soybean curd residue) utilization as animal feed: Nutritive value and animal performance aspects     

Mohammad Mijanur Rahman  Khairiyah Mat  Genki Ishigaki  Ryo Akashi 《Animal Science Journal》2021,92(1):e13594

Year by year, huge quantities of by-products are generated during the manufacturing process of soybean-based products. Okara is one of the by-products, and it is an insoluble portion of the soybean. It consists of high moisture (8.4–22.9%); on dry matter basis, it contains high metabolizable energy (9.0–14.2 MJ/kg) and other components that include crude protein (20.9–39.1%), crude fiber (12.2–61.3%), crude fat (4.9–21.5%), and ash (3.4–5.3%). Fermentation of okara improves its nutritional quality and reduces its anti-nutrient contents. Due to animals' palatability, okara can be used to replace the soybean meal/concentrate feed partially or completely in ruminant's diet and partially in nonruminant's diet. Okara feeding does not depress the intake, digestibility, growth, milk production, blood metabolic profiles, and meat quality of animals. However, this by-product decays quickly due to its high moisture content, and its heavy weight and sticky nature make it difficult to process and expensive to dry using conventional methods. This paper thoroughly summarizes the utilization of okara as animal feed in the cause of developing a general guideline with favorable levels of inclusion in the diets of animals for its exploitation and valorization. This review will encourage further research to develop eco-friendly and value added feed for animals.  相似文献   

MiPDCD6 effector suppresses host PAMP-triggered immunity to facilitate Meloidogyne incognita parasitism in tomato     

Md Kamaruzzaman  Li-Feng Zhao  Jin-Ai Zhang  Le-Tian Zhu  Yuan Li  Xiao-Da Deng  Shu-Jing Cai  Xiao-Cong Lian  Fang-Ni Chen  Ning Jia  Xinrong Wang 《Plant pathology》2023,72(1):195-206

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Marine Collagen: A Promising Biomaterial for Wound Healing,Skin Anti-Aging,and Bone Regeneration     

Sarah Geahchan  Parnian Baharlouei  Azizur Rahman 《Marine drugs》2022,20(1)

Marine organisms harbor numerous bioactive substances that can be utilized in the pharmaceutical and cosmetic industries. Scientific research on various applications of collagen extracted from these organisms has become increasingly prevalent. Marine collagen can be used as a biomaterial because it is water soluble, metabolically compatible, and highly accessible. Upon review of the literature, it is evident that marine collagen is a versatile compound capable of healing skin injuries of varying severity, as well as delaying the natural human aging process. From in vitro to in vivo experiments, collagen has demonstrated its ability to invoke keratinocyte and fibroblast migration as well as vascularization of the skin. Additionally, marine collagen and derivatives have proven beneficial and useful for both osteoporosis and osteoarthritis prevention and treatment. Other bone-related diseases may also be targeted by collagen, as it is capable of increasing bone mineral density, mineral deposition, and importantly, osteoblast maturation and proliferation. In this review, we demonstrate the advantages of marine collagen over land animal sources and the biomedical applications of marine collagen related to bone and skin damage. Finally, some limitations of marine collagen are briefly discussed.  相似文献   

Community water management to intensify agricultural productivity in the polders of the coastal zone of Bangladesh     

Yadav  Sudhir  Mondal  Manoranjan K.  Shew  Aaron  Jagadish  S. V. Krishna  Khan  Zahirul Haque  Sutradhar  Asish  Bhandari  Humnath  Humphreys  Elizabeth  Bhattacharya  Jayanta  Parvin  Rokhsana  Rahman  Mahabubur  Chandna  Parvesh 《Paddy and Water Environment》2020,18(2):331-343

Paddy and Water Environment - Most of the lands of the southern coastal zone of Bangladesh are protected from tidal flooding and storm surges by embankments constructed during the 1960s and 1970s,...  相似文献   

Factors Determining Consumer Preferences for Pangas and Tilapia Fish in Bangladesh: Consumers’ Perception and Consumption Habit Perspective     

Md. Taj Uddin  Mehedi Hasan Rasel  Mr. Badiuzzaman  Md. Sazedul Hoque 《Journal Of Aquatic Food Product Technology》2019,28(4):438-449

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