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Effects of N-acetyl-L-cysteine or Origanum vulgare oil on the semen quality, physiological responses, and blood biochemistry of heat-stressed goat bucksNoura H. Gouda, Hamzah R. Abdulhameed, Amgad A. Abu El-Ella, Nehal M. El-Hendawy, Sameh A. Abdelnour, Mahmoud S. Abd-Allah. Abstract |  Download PDF | |  Post | Background:
Heat stress (HS) is a major environmental challenge that significantly affects the reproductive health of livestock.
Aim:
This study aimed to explore the efficacy of N-acetyl-L-cysteine (NAC) or Origanum vulgare oil (OV) on the physiological attributes, semen traits, and blood biochemistry of heat-stressed goat bucks.
Methods:
A total of 24 goat bucks aged about 2-2.5 years and weighing 56.3±1.34 kg were divided into 3 groups. The bucks were fed a basal diet or supplemented with NAC (0.3 g/animal/day) or OV (1 mL/animal/day) for 3 months during the summer season. The Temperature-Humidity Index (THI) was 88.44±2.18, indicating severe heat stress.
Results:
The treatments did not have statistically significant effects on rectal temperature, respiratory rate, skin temperature, and pulse rate (P > 0.05). Both OV and NAC treatments significantly improved total protein concentrations relative to controls (P < 0.05). Albumin levels were enhanced only in the NAC group compared with the other groups (P
Key words: Blood biochemistry; Goat; N-Acetyl Cysteine; Origanum vulgare oil; Semen.
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