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This study aimed to evaluate the effect of dietary linseed oil, sunflower oil, and their supplementation with Amphora coffeaeformis (AC) on growth performance, carcase characteristics, fatty and amino acid profiles, oxidative stability, and meat quality of broiler chickens. One hundred and eighty day-old broiler chicks were divided into four groups (five replicates per group, 9 birds per each replicate pen). Birds in groups 1, 2, 3, and 4 fed diets containing 3% sunflower oil without AC (SFO 3%), 3% SFO with 1 g/kg diet of AC (SFAC), 3% linseed oil without AC (LSO 3%) and 3% LSO oil with 1 g/kg diet of AC (LSAC), respectively for 32 days. Final weight and weight gain were increased whereas fat pads were decreased in birds fed diets containing SFAC or LSAC compared to other groups. The values of omega-3 fatty acids, essential amino acids, and antioxidants were increased while saturated fatty acids (SFA) declined in the meat of birds fed diets supplemented with AC (SFAC & LSAC) compared to other groups. Lysine levels in the meat of birds fed AC and/or linseed diets were inversely related to hepatic L-carnitine levels. Breast meats of different broiler groups did not differ significantly in quality traits. However, broilers fed AC-containing diets had relatively lower yellowness, redness, and Chroma values. Conclusively, dietary combinations of AC with either SFO or LSO improved the performance, fatty and amino acid profiles, oxidative stability, and meat quality of broiler chickens.Highlights Supplying Amphora coffeaeformis (AC) to broiler sunflower (SFAC) or linseed oil (LSAC) diets improved performance. Dietary AC, 1 g/kg, improved the meat nutritional value of broilers fed SFAC or LSAC diets. Dietary AC, 1 g/kg, improved the meat oxidative stability of broilers fed SFAC or LSAC diets.

Data regarding semen collection and characteristics in Arabian oryx are not available so far. Therefore, the current study aimed to evaluate scrotal circumference, testicular dimension and semen characteristics in four age groups of this species. Eleven male Arabian oryx bulls were divided into four groups according to age: group 1: 3 years old (n = 2); group 2: 4 years old (n = 2); group 3: 5 years old (n = 2) and group 4: 10 years old (n = 3). After immobilisation, scrotal circumference, testicular dimensions, volume and weight and gonadosomatic index (GSI) were estimated for each animal. Semen was collected from each male on a weekly basis for 3 weeks. Immediately after collection, semen was evaluated for volume, pH, osmolality total motility (TM), forward progressive motilities (PM) using a phase microscope. Furthermore, TM, PM, progressive velocity (PV), curvilinear velocity (VCL) and pathway velocity (VAP) have been evaluated using computer-assisted sperm analyser (CASA). Sperm concentration was evaluated using a haemocytometer, whereas sperm morphology was detected using phase contrast microscopy and staining methods by eosin-nigrosin and Spermac stains. Sperm viability was assessed using eosin-nigrosin stain under light microscopy and Sybr14/PI stain under fluorescence microscopy. The current findings indicated a positive correlation between body weight versus scrotal circumference, testicular weight, testicular volume and GSI. However, age did not have a positive association with percentage of normal sperm in Arabian oryx. Conclusively, the current findings provide a valuable data for future use of artificial insemination, which will be crucial for propagation and conservation of Arabian oryx.