Effect of bee pollen on growth performance,carcass traits,blood parameters,and the levels of metabolic hormones in New Zealand White and Rex rabbits     

Abdel-Hamid  Tamer M.  El-Tarabany  Mahmoud S. 《Tropical animal health and production》2019,51(8):2421-2429

Tropical Animal Health and Production - The aim was to evaluate the effect of bee pollen (BP) on performance, blood parameters, and metabolic hormones in New Zealand White (NZW) and Rex (RX)...  相似文献   

Folic acid and flaxseed oil supplements in Ossimi ewes: effect on body weight changes,progesterone profile,blood chemistry,and litter traits     

El-Tarabany  Mahmoud S.  Atta  Mostafa A.  Emara  Sana S.  Mostafa  Mohamed M. 《Tropical animal health and production》2020,52(1):301-308

Tropical Animal Health and Production - The aim was to explore the impact of periconceptional folic acid or flaxseed oil (FXO) supplementation on fertility, progesterone profile, and blood...  相似文献   

Impact of crossing Fayoumi and Leghorn chicken breeds on immune response against Newcastle disease virus vaccines     

El-Tarabany  Mahmoud S. 《Tropical animal health and production》2019,51(2):429-434

Tropical Animal Health and Production - This study was conducted to evaluate the immune response against Newcastle disease (ND) virus vaccines (live attenuated and inactivated) in purebred Lohman...  相似文献   

Impact of crossbreeding Holstein and Brown Swiss cows on milk yield,composition, and fatty acid profiles in subtropics     

Mahmoud S. El-Tarabany  Akram A. El-Tarabany  Sana S. Emara 《Tropical animal health and production》2018,50(4):845-850

Milk yield (MY), composition, and fatty acid profiles of purebred Holstein (HO) cows, Brown Swiss (BS), and their F₁ crossbreds (HS) were compared under subtropical climate in Egypt. Pure HO had significantly greater 305-MY, total-MY, and daily-MY (p?<?0.05) than pure BS and crossbred HS. Furthermore, HO and HS had significantly higher peak-MY (44.2 and 43.3 kg, respectively) than BS (36.1 kg). In comparison with HO, BS had significantly higher milk fat, protein, total solids, and solid-not-fat % (p?<?0.05); however, no significant differences were observed between BS and HS for milk fat %. The milk fat of BS had higher concentrations of saturated (C17:0 and C18:0) fatty acids (FA) than that of the HO and HS (p?=?0.001 and 0.008, respectively). Content of C4:0, C6:0, C8:0, C12:0, and C15.0 FA did not differ between genotypes. Milk from HO and BS had significantly higher concentrations of unsaturated (C20:1 and C20:5) FA than that from HS (p?<?0.05). C14:1 (myristoleic), C16:1 (palmitoleic), and C18:2 (linoleic) FA contents were similar for all genotypes. In conclusion, BS surpassed HO for all milk composition traits and some FA components; however, HS had comparable milk fat percentage with BS. There appears to be an opportunity to modify the concentration of certain FA by breeding.  相似文献