Abstract This study aimed to investigate the effect of dietary n-3 fatty acid and ginger ( Zingiber officinale ) supplementation on semen quality, sperm acids, reproductive performance roosters. Seventy-two roosters (30 weeks old) were randomly allocated into 4 treatments including 1) basal diet as control group (F0G0), 2) supplemented with 20 g/kg fish oil (F2G0), 3) 30 powder (F0G3), 4) (F2G3...

this experiment was conducted to evaluate the effects of different commercial multi enzymes and nutrients levels of diets on performance and carcass traits of broilers. in this experiment 288 day old ross – 308 broilers (male and female) were used as (2*4) factors include: two levels of nutrients in diets (ross- 308 nutrients recommendation and 5% less than ross- 308 nutrients recommendation) a...

The season may affect the values of fresh semen variables and therefore influence the success of cryopreservation. The aim of this study was to improve the evaluation of seasonal changes in semen quality in Spanish Black Castellana roosters maintained under natural environmental conditions. Semen was collected from 11 Black Castellana roosters (housed under natural photoperiod and temperature c...

effect of l-carnitine and butyric acid on the performance and immune responses of 192 broiler chickens (ross 308) was investigated with three levels of l-carnitine (zero, 125 and 250 mg/kg) and two levels of butyric acid (2 g/kg) in a 2×3 factorial arrangement based on randomized complete block design with 6 dietary treatments, four replicates and eight birds per each. broilers fed basal diet p...

Implementing alternatives methods to dorsal massage (e.g., electroejaculation) for recovering semen from fighting rooster, known be very stressful due its aggressiveness, has become a priority breeders of this cock breed in Ecuador. Therefore, the objective present study was evaluate two collection techniques roosters, one by electroejaculation (EE) and another (DM) on seminal quality parameter...

The study was conducted to determine the influence of D-aspartic acid (D-Asp) as antioxidant supplement and thawing rates on ram sperm motility, membrane integrity, abnormality, viability, mitochondria activity, malondialdehyde and antioxidant activities, and total antioxidant capacity after freezing-thawing process. Semen samples from five mature rams (3-4 years old) were diluted with extender...