jbs
Abstract : The Reality of Buffalo Breeding in Basra Governorate
The Reality of Buffalo Breeding in Basra Governorate DOI: http://dx.doi.org/10.6000/1927-520X.2017.06.01.2 Published: 28 March 2017 |
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: <!-- [if gte mso 10]> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} |
Abstract : Factors Affecting Incidence of Uterine Torsion in Egyptian Buffaloes (Bubalus bubalis) and its Response for Rolling
Factors Affecting Incidence of Uterine Torsion in Egyptian Buffaloes (Bubalus bubalis) and its Response for Rolling DOI: http://dx.doi.org/10.6000/1927-520X.2017.06.01.4 Published: 28 March 2017 |
Abstract: Objective: The present work was planned to study the incidence of uterine torsion in Egyptian buffaloes as well as its prognosis after mechanical treatment. Methods: A total number of 35 buffaloes of different ages, parities and stage of pregnancy with complain of colic and anorexia were included in the present study. These animals were examined rectally to detect stage of pregnancy, degree, direction, duration, location of uterine torsion. Mechanical handling of torsion cases and prognosis of recovered cases was performed. After birth, sex of new born was also recorded. Results: The torsion of uterus mostly occurred in pleuriparous buffaloes (100%) in right side (85.7%) during second half of pregnancy (100%). Most cases were postcervical (85.7%) during the early stage (7 and 8 months). Torsion also may occur during labour (17.4%) where the cervix was dilated after correction. Most cases of uterine torsion occur in stabled animals for long period (97%). The uterine torsion associated with male calves (65.7%) as well as with large size calves (40-50kg) and majority of the calves were in normal position. The first foetal sac expelled in majority of cases was amniotic sac (97%) with few cases of placental retention. Uterine torsion with short duration (1-6 h) usually needs 1-2 rolls only for correction and usually takes 0-6h (100%) for cervical dilatation. Occurrence of uterine torsion for above three days usually did not respond for rolling. Conclusion: Uterine torsion usually occurs in old stabled animal with good BCS during green season at last month of pregnancy. The right sever and post cervical torsion were the most common type of torsion. Rapid diagnosis of uterine torsion within 6 h usually results in good prognosis even in severe cases. Keywords: Uterine Torsion, Egypt, Buffalo, Bubalus bubalis |
Abstract : Influence of Homogenization Conditions of Buffalo Milk on the Recovery of Milk Constituents and Yield of Mozzarella Cheese
Influence of Homogenization Conditions of Buffalo Milk on the Recovery of Milk Constituents and Yield of Mozzarella Cheese DOI: https://doi.org/10.6000/1927-520X.2017.06.01.6 Published: 20 April 2017 |
Abstract: Mozzarella cheese making involves losses of milk constituents, especially during plasticizing stage of cheese curd. Buffalo milk is considered more suitable than cow milk for Mozzarella cheese making, especially in terms of colour, yield and stretch property of resultant product. Homogenization of milk reduces the losses of milk constituents, increases its whiteness and is expected to render superior flavor to cheese. The fat globule size for buffalo milk is larger and the cheese tends to be firmer and chewy as compared to cow milk counterpart. Homogenization of buffalo milk is of significance in this regard since it can improve the color, recovery of milk constituents culminating in higher cheese yield, a mellower product with lower tendency to oil-off during baking applications. Since the conditions of homogenization affects the recovery of milk constituents, it was decided to study temperature and pressure of homogenization on such aspect including cheese yield. Homogenization of standardized buffalo milk at 55 or 65oC and 4.90 MPa (P2) pressure is found beneficial with regard to recovery of milk fat, while use of lower pressure i.e. 2.45 MPa (P1) at above temperatures is found beneficial for protein and TS recoveries. P2 pressure is more beneficial than P1 pressure in improving the fat recovery in buffalo milk Mozzarella cheese. There is an improvement in the yield of Mozzarella cheese with an increase in homogenization pressure. The yield of Mozzarella cheese prepared using buffalo milk homogenized at P2 and P1 pressure (at 65oC) was 17.00% and 16.10% respectively. The recoveries of milk fat, protein and TS and per cent yield for control cheese was 83.68%, 84.10%, 56.74% and 14.53% respectively. Keywords: Mozzarella cheese, yield, recovery of milk solids, loss in whey, loss in moulding water. |
Abstract : Influence of the Month on the Chemical Composition of Mediterranean Italian Buffalo Milk
Influence of the Month on the Chemical Composition of Mediterranean Italian Buffalo Milk DOI: https://doi.org/10.6000/1927-520X.2017.06.01.3
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Abstract: It is known that the chemical composition of milk is influenced by several factors and the length of lactation plays a prominent role. In Italy, where the reproductive activity of the herd is aimed at the demand for milk from the market, the chemical composition is influenced not only by the adoption or otherwise by the out-breeding-mating-strategy (OBMS) but also by the severity which characterise these techniques (the length of the interruption of sexual promiscuity). The productions and the chemical composition of the milk of 23 farms (average 9000 buffaloes a year) were processed from 2011 to August 2016. The milk was daily conferred and analysed. We evaluated the milk production (kg), the percentage of fat, protein, lactose, dairy yield calculated with the equation of Altiero (1989), the values of the titratable acidity (°SH) and of pH. For each parameter, the monthly values of each farm were divided by the respective annual average and were expressed as an index (monthly values/annual average) in order to homogenize the graphical representations. Keywords: Buffalo milk, dairy yield. |