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Metagenomic Analysis of Uterine Microbiota in Postpartum Normal and Endometritic Water Buffaloes (Bubalus bubalis) DOI: http://dx.doi.org/10.6000/1927-520X.2013.02.03.4 Published: 30 November 2013 |
Abstract: In Indian subcontinent the water buffalo (Bubalus bubalis) is one of the important livestock animals. As in cows, postpartum infection like endometritis in dairy buffaloes is major cause for the economic loss in the dairy industries. Till date, there is no study regarding metagenomic analysis of bacterial population of postpartum endometritic buffaloes. The purpose of this study was to identify and compare the uterine bacterial composition in normal and endometritic postpartum buffaloes using 16S rDNA cloning, which was a type of culture-independent methods. A total of 151 cloned plasmids for 16S rDNA from both normal and endometritic uterine samples were sequenced. Cloning library of 16S rDNA revealed clear cut difference between bacterial populations of normal and endometritic postpartum buffaloes. Cloned sequences were assigned to five major groups and one uncultured group. The five major groups include- Bacteroidetes, Firmicutes, Fusobacteria, Proteobacteria, and Tenericutes. Major cloned sequences from normal status endometrium were affiliated to phylum Proteobacteria, and most of the sequences showed high degree of similarity with bacteria Haemophilus felis. Most of the sequences from cloned library of endometritic status samples were affiliated to phylum Proteobacteria and Tenericutes. The most prevalent bacteria found in endometritic samples were Psychrobacter sp. PRwf-1, Psychrobacter pulmonis, Ureaplasma diversum strain T95 and Ureaplasma diversum strain A417. A major number of cloned sequences from both normal and endometritic samples were assigned to uncultured group. The present data showed bacterial population of postpartum normal and endometritic buffaloes and also described the presence of various types microbiota in uterine samples. Keywords: Buffalo, endometritis, 16S rDNA cloning, bacterial population.Download Full Article |
A Comparative Study on the Physicochemical Parameters of Camel and Buffalo Milk DOI: http://dx.doi.org/10.6000/1927-520X.2013.02.03.5 Published: 30 November 2013 |
Abstract: This research work was carried out to compare the various physicochemical parameters of two species, camel and buffalo. Camel milk samples were collected at National Research Centre on Camel, Bikaner and buffaloes milk samples were collected from the surroundings villages of Bikaner. After collection milk samples were brought to the laboratory of NRCC Bikaner and they were analyzed for fat, SNF (Solid Not Fat), protein, lactose, total ash and pH using milk analyzer (Lactoscan). Camel milk had 2.71±0.11 fat, 6.91±0.03 SNF, 2.23±0.02 protein, 3.86±0.02 lactose, 0.79±0.004 total ash and 6.95±0.01 pH while buffalo milk had 8.71±0.82 fat, 8.44±0.19 SNF, 4.11±0.02 protein, 4.46±0.15 lactose, 0.98±0.05 total ash and 7.59±0.02 pH. Fat, SNF, protein and pH of buffalo milk was significantly (P<0.001) higher than camel milk. Lactose and total ash in buffalo milk was also higher than camel milk but at P<0.05 level. So it can be concluded that all the studied parameters were high in buffalo milk than camel milk. Keywords: Fat, SNF, Protein, Lactose and Milk Analyzer.Download Full Article |
Morphological and Structural Investigations of Egyptian Water Buffalo (Bubalus Bubalis) Sertoli Cells DOI
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Abstract: Buffaloes are essential part of the economy in many countries and provide sustainable food in addition to being working animals. Inefficiency in reproduction has become problematic in recent years due to a number of factors and although much research concentrates on the female, very little is known about the male buffalo reproductive system. To address this deficiency in the literature, testes were obtained from 20 clinically healthy water buffalo (Bubalus Bubalis) bulls aged 3 years old. Scanning electron microscopy showed that the Sertoli cells were columnar to triangle shaped with many processes. In the middle portion of the seminiferous tubules, the Sertoli cell had two types of processes with sheet like and slender cord like appearances. The sheet like processes had simple smooth margins originating from Sertoli cells, surrounding the surfaces of spermatogonia and spermatocytes. The slender cord like processes formed networks around other spermatogenic cells. Transmission electron microscopy showed that the Sertoli cells contained a large irregular shaped nucleus with deep nuclear membrane indentations, few mitochondria, aggregates of ribosomes and few rough endoplasmic reticulum which were observed within the indentations. Each nucleus contained a multivesicular nuclear body, containing vesicles, tubules and ribosome like dense structures. The work herein describes the structure and location of key reproductive cells within the water buffalo. Understanding the features of the male reproductive system is essential in order to advance studies into the reproductive decline of this species and the Bovidae family. Keywords: Egypt, Testis, Buffalo, Bubalus Bubalis, morphology, Sertoli Cells. |
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Morphological and Structural Investigations of Egyptian Water Buffalo (Bubalus Bubalis) Sertoli Cells DOI: https://doi.org/10.6000/1927-520X.2017.06.01.1
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Abstract: Buffaloes are essential part of the economy in many countries and provide sustainable food in addition to being working animals. Inefficiency in reproduction has become problematic in recent years due to a number of factors and although much research concentrates on the female, very little is known about the male buffalo reproductive system. To address this deficiency in the literature, testes were obtained from 20 clinically healthy water buffalo (Bubalus Bubalis) bulls aged 3 years old. Scanning electron microscopy showed that the Sertoli cells were columnar to triangle shaped with many processes. In the middle portion of the seminiferous tubules, the Sertoli cell had two types of processes with sheet like and slender cord like appearances. The sheet like processes had simple smooth margins originating from Sertoli cells, surrounding the surfaces of spermatogonia and spermatocytes. The slender cord like processes formed networks around other spermatogenic cells. Transmission electron microscopy showed that the Sertoli cells contained a large irregular shaped nucleus with deep nuclear membrane indentations, few mitochondria, aggregates of ribosomes and few rough endoplasmic reticulum which were observed within the indentations. Each nucleus contained a multivesicular nuclear body, containing vesicles, tubules and ribosome like dense structures. The work herein describes the structure and location of key reproductive cells within the water buffalo. Understanding the features of the male reproductive system is essential in order to advance studies into the reproductive decline of this species and the Bovidae family. Keywords: Egypt, Testis, Buffalo, Bubalus Bubalis, morphology, Sertoli Cells. |
Comparative Meat Production Performance Evaluation of Buffalo with Cattle at Different Ages DOI: https://doi.org/10.6000/1927-520X.2017.06.03.1 Published: 6 December 2017 |
Abstract: An inquisitive on-station feeding trial was carried out to identify the dexterous species and age for beef production with same plane of nutrition. A 2×3 (2 species × 3 ages) factorial experiment was settled for a period of 105 days with eighteen native buffalo and 18 BCB-1 (BLRI Cattle Breed-1) bulls of three age groups (18 months, 24 months and 30 months) and distributed them randomly in six treatment groups having an equal number (6) of animals in each. Intake of nutrients i.e.: DM, CP of buffalo bulls was significantly (p<0.001) higher than BCB-1 bulls in all the cases. The buffalo bulls had significantly higher digestibility of DM (68.0%, p<0.001), OM (67.9%, p<0.001), CP (66.3%, p<0.05), ADF (59.8%, p<0.001) or NDF (59.6%, p<0.001) than cattle (63.0%, 62.7%, 63.6%, 52.4% & 49.6%, respectively). But, the digestibility of DM, OM, CP, ADF or NDF was not affected significantly (p>0.05) by the age of the bulls with any cases. Buffalo bulls gained body weight more rapidly (p<0.001); 1.11 & 0.88 kg/day, respectively and showed a better FCR (p>0.05; 6.72 & 6.86, respectively) than cattle with low feed cost of per kg gain (US$ 1.62 & US$ 1.69, respectively). ADG (p<0.01), FCR (p<0.05) and estimated feed cost (p<0.05) affected significantly and increased linearly by the age of bulls, where 18 months bulls of buffalo and BCB-1 performed best. In an aggregation, it revealed that, buffalo performed better than BCB-1 cattle and 18 months age of both species was more responsive for profitable meat production. Keywords: Species, Age, Meat production, Nutrient utilization, Growth performance. |