The research was conducted to determine the influence of benzoic acid on growth performance, carcass traits, blood parameters and meat chemical composition of broiler birds. The research was carried out using 90 three weeks old broilers (Ross 308) divided into three groups, 30 per each. The levels of inclusion of the benzoic acid was based on treatment 1 (control) 0%, treatment 2 = 0.4% and treatment 3 = 0.8%. Results showed that, feeding benzoic acid to broilers had no significant on body weight, weight gain, feed intake and feed conversion at the two tested levels. Carcass traits did not show significant differences for the treatments, with the exception of bursa weight significantly increased. The serum total protein and globulin were significantly (P<0.05) increased in benzoic acid supplemented broilers. However, no significant differences were observed in serum albumin, triglyceride, cholesterol and uric acid between different experimental groups. No significant differences were observed for hematological parameters among all treated groups. There were no significant differences in chemical composition of broilers meat, including dry matter, protein and ash content. It could be concluded that, dietary inclusion of benzoic acid at both levels improved the immune response by increasing the weight of bursa of Fabricius and elevating blood globulin level but did not affect broiler chickens growth performance.

Aluminum level (Al) in infant formula was determined to postulate its public health significance and suggesting recommendations to avoid such contamination. Hence, fifty random samples of infants powdered milk based formulae were collected from different markets and pharmacies in Assiut Governorate, Egypt. These samples were digested and Al level was detected by using HR-CS (High Resolution Continum Source Atomic Absorption Spectrophotometer) and compared with Maximum Permissible Limit (MPL). About 90% of examined infant formula samples containing Al with an average value of 0.145 mg/L and 8% of samples were above the MPL.

The transition from pregnancy to parturition is associated with metabolic and physiological changes. Oxidative stress is increased in late pregnancy and continue to be higher after parturition, which represent a challenge for the dairy cows to defend the increased free radicals by using the available antioxidants. This review discussed the process of free radical release, the development of oxidative stress and evaluation of the animal health during the transition period and threw the light on different methods used to assess oxidative stress and antioxidants therapy.

The objective of this study was to throw light on the occurrence and surgical repair of perineal laceration (PL) and rectovaginal fistula (RVF) in dairy cows. A report of 10 Holstein–Frasian and Holstein dairy cattle, suffering a PL of second degree (2nd PL; n=1) and third degree (3rd PL; n= 6) as well as RVF (n=3). Surgical repair of the 2nd PL and 3rd PL was performed by a one-stage Goetz technique. While the repair of RVFs was performed either through a one-stage repair or vaginal approach. Healing of wounds, recovery and complications were recorded. 3rd PL in 4 cows (67%) healed by first intention. Three of these cows subsequently became pregnant, while the fourth cow was culled. The laceration of the other two cows (33%) healed except for a small RVF in one cow. The other cow had a first degree perineal laceration (1st PL) that healed without surgical intervention. Two fistulae healed completely and the affected cows became pregnant 2 months after surgery. The third cow with fistula showed persisted a 5-6 mm diameter rectovestibular fistula. Complete healing of the case of 2nd PL was occurring without complications. It could be concluded that, PL can occur mostly in primiparous cows with difficult assisted deliveries and that one stage repair of PL in cows substantially improves the perineal conformation. The RVF in cows could be corrected either through vaginal approach or a one-stage surgical repair. Breeding after surgical treatment of PL and RVF in dairy cows is advisable.

The present study was conducted with an objective to extract all possible interrelated etiological factors of cystic ovary and to evaluate the best treatment protocol in dairy cattle under field condition of temperate region. A total of 54 cattle (47 cows and 7 heifers), suffering from ovarian cyst were retrospectively used to study prevalence and outcome of the disease over a period of 5 years. Highest prevalence was recorded in crossbred Jersey, in 2nd lactation and during summer. Major clinical signs showed by the animals with ovarian cysts (OC) were either repeat breeding or anestrus. In case of repeat breeding, irregular cycle (sometimes short and sometimes long in the same cow) in 23.33% (7/30), nymphomania in 13.33% (4/30), short cycle (10-15 days) in 23.33% (7/30) and long cycle (23-30 days) in 10% (3/30) cases were noticed. In remaining 30% cases (9/30) normal cycles were noticed. Right ovary affected more than left one and mean number of cysts recorded were 1.17 per animal. Follicular cysts could be treated with GnRH in 75% (9/12) cases, and, luteal cysts with cloprostenol in 83.33% (10/12) cases. However, in cases where cyst could not be differentiated by rectal palpation, administration of cloprostenol 9 days after HCG treatment was found 66.67% (8/12) effective in curing the disease. It is concluded that both follicular and luteal cysts can be treated successfully with GnRH/hCG and prostaglandin or its analogue, respectively.