Supplementation with sunflower seed increases circulating cholesterol concentrations and potentially impacts on the pregnancy rates in Bos indicus beef cattle

Theriogenology
Mariângela B CordeiroClaudia M B Membrive

Abstract

We aimed to evaluate the effect of supplementation with sunflower seed on blood concentrations of progesterone and cholesterol and on the pregnancy rate in beef cattle subjected to timed artificial insemination (TAI) and timed embryo transfer (TET). In experiment 1, cows were received 22-day supplements containing (sunflower, n = 66) sunflower seed or not (control, n = 67) immediately after a progesterone/estradiol-based TAI protocol (Day 0). The cholesterol concentration on Day 21 and the pregnancy rate were greater (P < 0.03) in the sunflower group (148.2 ± 6.1 mg/dL and 66.7%) than those in the control group (116.0 ± 6.4 mg/dL and 47.8%). In experiment 2, heifers received an in vitro-produced embryo 7 days after the expected time of the synchronized ovulation. Heifers were separated into two supplementation groups (sunflower, n = 106 and control, n = 111) for 22 days. The plasma progesterone concentration on Day 7 was not different between the groups. However, on Day 19, the plasma progesterone concentration was greater (P < 0.0001) in the sunflower group (5.8 ± 0.4 ng/mL) than that in the control group (3.5 ± 0.4 ng/mL). A greater (P < 0.05) cholesterol concentration was observed in the sunflower group than that in the cont...Continue Reading

References

Jul 1, 1980·Journal of Reproduction and Fertility·M G Diskin, J M Sreenan
Mar 11, 2000·Reviews of Reproduction·R MattosW W Thatcher
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May 10, 2013·Reproduction, Fertility, and Development·Monique M GuardieiroRoberto Sartori

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Citations

Apr 1, 2018·Reproduction in Domestic Animals = Zuchthygiene·A L BaltazarCmb Membrive
Feb 1, 2015·Reproduction, Fertility, and Development·Pat LonerganThomas Spencer
Jan 1, 2016·Reproduction, Fertility, and Development·Roberto SartoriMilo C Wiltbank
Apr 10, 2019·Tropical Animal Health and Production·Alaster SamkangeOscar Madzingira
May 14, 2021·Biology of Reproduction·Gabriela de Oliveira FernandesMargot Alves Nunes Dode

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