This study investigated the carry-over effects of maternal L-carnitine supplementation during gestation and lactation on neonatal New Zealand rabbits. Maternal supplementation, particularly at 300 mg L^-1, improved litter performance, body weight, and average daily gain while enhancing thyroid hormone levels and reducing liver enzyme activity without adverse effects on oxidative status, indicating improved metabolic efficiency and neonatal health.

Using 900 Hubbard broilers, results showed that enzyme treatment and fermentation improved weight gain and FCRs (feed conversion ratios). Fermentation at 6 % and 12 % was optimal, while 18 % had negative effects. Carcass traits, nutrient digestibility, and bone strength improved, with reduced triglycerides in fermented groups, enhancing broiler productivity.

Among 180 cows studied postpartum, F2 cows had the highest milk yield (183.9 L per week) and the highest serum glucose. F1 cows showed the best reproductive performance. Holstein-Friesian (HF) cows had the highest somatic cell count, indicating higher mastitis risk. Crossbreeding with Sahiwal improved milk production and reproductive health.

A total of 400 day-old quails were assigned to four treatments: control, 0 %, 0 .01 %, and 0.02 % ginger phyto-protease. Over 42 d, significant improvements in feed intake, body weight gain, feed conversion ratio, dressing percentage, villus height and width, and nutrient digestibility were observed, especially at 0.02 % enzyme inclusion. This suggests that 0.02 % ginger phyto-protease optimizes quail performance.