SVU-International Journal of Veterinary Sciences <p>SVU-IJVS is a peer-reviewed international open access official Veterinary Journal of the South Valley University, Egypt and&nbsp;publishes original research articles dealing with Veterinary sciences.<br>SVU-IJVS on Egyptian Knowledge Bank: <a href=""></a></p> South Valley University en-US SVU-International Journal of Veterinary Sciences 2535-1826 <p>Copyright for articles published in the SVU-IJVS is retained by the authors, with first publication right granted to the SVU-IJVS. By Virtue of their appearance in the SVU-IJVS, articles are free to use after initial&nbsp;publication under <a href="" rel="license">Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License&nbsp;&nbsp;</a><span class="cc-license-identifier">(CC BY-NC-SA 4.0)</span></p> <p>&nbsp;</p> A study on Calf’s Behavior and Growth Performance in Relation to Gestation Period and Lactation Season <p>The present study aimed to assess the impact of the length of the gestation period (GPL) and a number of lactation season of cows on behavior and growth performance in calves from birth until weaning. The presence of abnormal behavior during 1<sup>st </sup>twelve hours of the calf's life as delayed Sternal recumbency and standing or abnormal suckling was not significantly affected by GPL. Also, the duration and frequency of behavior related to respiratory, digestive or mixed disorders had a non-significant variation between groups of different gestation period length. However, the increase in GPL had the lowest percentage and duration of behavior related to respiratory and digestive disorders. Calves with the longest GPL had a significantly higher birth weight and it had a significant effect on pre-weaning growth rate. On the other side, the presence of abnormal behavior during the first twelve hours of the calf's life as delayed Sternal recumbency and standing or abnormal suckling were higher in 3<sup>rd</sup> parity. The number of lactation season had no significant effect on the duration and frequency of behavior related to respiratory, digestive or mixed disorders. The birth weight of calves was higher in the third parity group (36.73 kg) than other parities, but the differences didn't reach the significance, moreover, the weaning age and pre-weaning growth rate did not affect by the lactation season number. There was a negative correlation between abnormal behavior and the pre-weaning growth rate. There was a positive correlation between duration of abnormal behavior and the weaning age.</p> <p>&nbsp;</p> Hesham Hosny Mohammed Mohamed Y. Ibrahim Al-Sadik K. Saleem Azhar Fakhry Ibrahim Youniss ##submission.copyrightStatement## 2018-11-22 2018-11-22 2 1 60 86 10.1234/svu.v1i2.41 Effect of Epidermal Growth Factors (EGF) on the Maturation and Developmental Competence of Buffalos’ Oocytes and Embryo Stages In Vitro <p>The present study aims to study the effects of epidermal growth factors (EGF) supplementations to the in vitro maturation (IVM) medium of buffalo's oocytes on the oocyte maturation rate and embryo development competence. The ovaries were collected from El-Monieb slaughters house and transferred directly to the laboratory for the experiment processing. Excellent and good cumulus oocytes complexes (COCs) were aspirated from 3-8 mm diameter follicles. TCM-199 medium were used for in vitro maturation. In experiment I, COCs were incubated in EGF-containing IVM medium as; 0 (control or CTL), 10, 20 and 50 ng/ml EGF for 24 hrs at 38.5°C in humidified environment; 5% CO<sub>2</sub> and 95% humidity. In experiment II, COCs were incubated in vitro fertilization (IVF) medium as; 0 (control or CTL), 10, 20 and 50 ng/ml EGF for 24 hrs in the same condition. In experiment III, COCs were incubated in vitro culture (IVC) medium as; 0 (control or CTL), 10, 20 and 50 ng/ml EGF for 24 hrs in the same condition. According to the expansion of oocytes and attaining the developmental embryo stages of morula and blastocyst, our results have shown that addition of 20 ng/ml of EGF to the IVM medium significantly increased the oocyte maturation and fertilization rates compared to those of CTL (76.96 <strong>±</strong> 9.04 vs. 51.3 ± 4.66 and 67.96 <strong>±</strong> 2.76 vs. 42.03 ± 4.83 %, respectively) (P&lt;0.05). On the other hand, Addition of 20 ng/ml of EGF to the IVM medium significantly increased the fertilization rates compared to other concentrations (10 and 50 ng/ml) (67.96 <strong>±</strong> 02.76 vs. 49.43 <strong>±</strong> 03.67 and 34.70 <strong>±</strong> 01.40, respectively). However, the developmental rates to morula and blastocyst stages in response to addition to IVC medium variably increased rather than those of control despite no significance. &nbsp;&nbsp;</p> Nasra Ahmed Yousef Hassan Abdel-Sabour Hussein Magdy Ramadan Badr Ahmed Ezzat Ahmed ##submission.copyrightStatement## 2018-11-21 2018-11-21 2 1 85 94 10.1234/svu.v1i2.39 Developmental Studies of the Gastric Junctions of the Post hatching Muscovy Duck (Cairina moschata) <p>The current study was carried out on 24 apparently healthy post-hatching Muscovy ducks of both sexes ranging from 1-60 days old. They were divided into 5 age groups to investigate the development of the junctions of the stomach; esophago-proventricular junction, proventriculo-gizzard junction (Isthmus gastris) and ventriculo-duodenal junction by using light and scanning electron microscopy. The longitudinal folds of the esophago-proventricular junction were separated by longitudinal grooves and they were crossed by thin transverse ridges; some of the longitudinal folds were branched toward the proventriculus at 60 days old. At one day old, the lymphoid infiltrations were observed in the lamina propria at the esophago-proventricular junction. With the advancement of the age, abundant diffused lymphoid infiltrations and esophageal tonsil were observed. In all age groups, the cuticle covering of the mucosa at proventriculus-gizzard junction increased in thickness toward the gizzard. Moreover, in one day old duckling, the proventricular glands were observed underneath the gizzard tubular glands, these glands were become well developed at 60 days old. The lamina propria of the gizzard-duodenal junction showed slight lymphatic infiltrations at one day old age. Lymphatic infiltrations and more lymphatic aggregations were abundant at 7-15 days. While between 30-60 days age, lymph nodules were distinct. Numerous endocrine cells were also observed in mucosa of the gizzard-duodenal junction.</p> Fatma Abbass Madkour Salma A. Mohamed Kamal E.H. Abdalla Yasser A. Ahmed ##submission.copyrightStatement## 2018-11-21 2018-11-21 2 1 69 84 10.1234/svu.v1i2.38 Complete Cervico-vaginal Prolapse (CVP) in a Ewe <p>A four-years-old pluriparours (parity; n=2) pregnant Kanze/Dershawy ewe, of a body weight about 40 kg at Halayeb city, Red Sea province, Egypt was presented with a history of restlessness, straining, and appearance of a permanent/complete cervico-vaginal prolapse as a smooth, red, and rounded mass at the rear end of the ewe. There was no history of previous cervico-vaginal prolapse during or after previous pregnancies. Complete procedures of the appropriate successful treatment were described in this study. Briefly, treatment was performed under caudal epidural analgesia; the prolapsed mass was immediately covered with a towel soaked in water, examined for presence of injuries/rupture, raised to evacuate the urinary bladder, replaced by manual fist pressure and by the flat of hands, and finally retention suture was used to prevent the possible reoccurrence. The suture material had been removed before lambing, and the owner was advised to cull the ewe or at least excluded from further breeding.</p> Ahmed Saad Ahmed Hassaneen ##submission.copyrightStatement## 2018-11-05 2018-11-05 2 1 50 59 10.1234/svu.v1i2.50