Flaxseed improves embryo production in Boer goats

Area of Science:

• Animal Science
• Reproductive Biology
• Nutritional Science

Background:

• Flaxseed is rich in polyunsaturated fatty acids, offering potential as a dietary supplement for ruminant reproductive enhancement.
• Understanding flaxseed's impact on nutrient intake and embryo development is crucial for optimizing livestock breeding.

Purpose of the Study:

• To investigate the effects of varying dietary flaxseed levels (0%, 4%, 8%, 12%) on nutrient intake.
• To evaluate the impact of these diets on the quantity and quality of embryos in Boer goats.

Main Methods:

• 24 multiparous Boer goats were divided into four dietary groups (0%, 4%, 8%, 12% flaxseed).
• Goats underwent superovulation, and embryos were collected 7 days post-natural service for quantity and quality assessment.
• Nutrient intake, including ether extract and non-fiber carbohydrates, was monitored.

Main Results:

• Dietary flaxseed linearly influenced nutrient intake, with increased fat intake and decreased non-fiber carbohydrate intake at higher flaxseed levels.
• The proportion of viable embryos was significantly higher in goats fed 4%, 8%, and 12% flaxseed (84-94%) compared to controls (65%).
• Feeding 4% and 8% flaxseed resulted in a greater proportion of Grade 1 embryos (74-83%) compared to 0% and 12% flaxseed (40-46%).

Conclusions:

• Moderate dietary flaxseed supplementation positively impacts nutrient profiles in Boer goats.
• Flaxseed inclusion, particularly at moderate levels, enhances reproductive efficiency by increasing the number and quality of viable embryos.
• This study supports the use of flaxseed as a beneficial dietary component for improving Boer goat reproductive outcomes.