Dietary supplement guava leaf extract regulates growth, feed utilization, immune function, nutrient digestibility and redox regulation in growing rabbits.

The use of agricultural waste in animal production has gained global interest. An eight-week trial was conducted to investigate the impacts of adding ethanolic guava leaf extract (GLE) as a feed supplement on the growth, feed utilization, immune response, nutrient digestibility, redox regulation, and blood health of growing rabbits. Ninety weaned growing rabbits were randomly assigned to three groups.

Dietary Supplementation of Microalgae and/or Nanominerals Mitigate the Negative Effects of Heat Stress in Growing Rabbits.

Heat stress (HS) is one of the most significant environmental factors that result in fluctuations and shrinkage in rabbit growth, health, and overall productivity. This study aims to investigate the effects of dietary mineral nanoparticles (selenium or zinc) and/or Spirulina platensis (SP) independently and in combination on stressed growing rabbits. A total of 180 weaned growing New Zealand White rabbits were included in this study and randomly divided into six dietary treatments.

Effect of Folic Acid Supplements on Progesterone Profile and Blood Metabolites of Heat-Stressed Holstein Cows during the Early Stage of Pregnancy.

The aim was to elucidate the impact of oral folic acid (FA) supplements on progesterone profile, blood metabolites and biochemical indices of heat-stressed Holstein cows during the early stage of pregnancy. The study lasted from the day of artificial insemination through the end of the fourth week of pregnancy. The first group (CON, n = 17) received 0 μg of FA/kg BW as a control.

Some physiological aspects of repeat breeding in Holstein Friesians and its improvement under Egyptian environment.

The serum albumin concentration and the albumin-globulin ratio had a significant effect on the rate of repeat breeding. In repeat breeders, low concentrations were found of albumin, progesterone, phosphorus, zinc, and glucose. The glycogen content of the cervical mucus was significantly lower in the repeat breeders.

High and low litter size trait and its relationship with serum and urine progesterone, serum zinc, and serum phosphorus in New Zealand white rabbits and improvement for the low litter size trait.

A number of does was classified according to their initial litter size to high (> 6 bunnies, group 1) and low (< 5 bunnies, group 2) in New Zealand White rabbits. Incidence of low litter size in the herd in the present study was 23%. The number of matings/conception, total mortality, corpora lutea/foetus, number and percentage of resorbed foeti were markedly higher in group 2 than in group 1.