Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows
The present study investigated the effects of protected dietary fat and vitamin E on the reproductive performances of Hanwoo during the estrus period. The present study consisted of two experiments. Experiment 1 determined the effects of dietary supplements on the in vitro nutrient digestibility and...
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Korean Society of Animal Sciences and Technology
2025-05-01
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| Series: | Journal of Animal Science and Technology |
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| Online Access: | http://www.ejast.org/archive/view_article?doi=10.5187/jast.2024.e41 |
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| author | Young Ho Joo Chang Hyun Baeg Ji Yoon Kim Bu Gil Choi Dimas Hand Vidya Paradhipta Dong Hyeon Kim Seong Shin Lee Sam Churl Kim |
| author_facet | Young Ho Joo Chang Hyun Baeg Ji Yoon Kim Bu Gil Choi Dimas Hand Vidya Paradhipta Dong Hyeon Kim Seong Shin Lee Sam Churl Kim |
| author_sort | Young Ho Joo |
| collection | DOAJ |
| description | The present study investigated the effects of protected dietary fat and vitamin E on the reproductive performances of Hanwoo during the estrus period. The present study consisted of two experiments. Experiment 1 determined the effects of dietary supplements on the in vitro nutrient digestibility and fermentation characteristics in the rumen. Experiment 2 determined the effects of dietary supplements on blood fatty acid profiles, blood metabolites, and the pregnancy rate of Hanwoo cows. The basal diet was a total mixed ration, which was formulated for Hanwoo cows and was treated with different supplements as follows: without supplement (CON); supplemented 1% of protected fat (PF); supplemented 1% vitamin E (VE); and mixed PF and VE at 1:1 (MIX) based on dry matter (DM). The experimental diets were incubated in the rumen buffer for 72 h at 39°C with four replications and three blanks for Experiment 1. In Experiment 2, forty Hanwoo cows on estrus (2.7 ± 0.15 of parity) were assigned to each dietary treatment. Each treatment consisted of ten Hanwoo cows placed in two pens and fed individually (5 steers per pen). The feeding period was conducted for 75 days, from 30 d before to 45 d after artificial insemination (AI). In Experiment 1, dietary treatment did not affect nutrient digestibility or fermentation characteristics in the rumen except for the concentration of total volatile fatty acid (VFA). Dietary PF had a higher (p < 0.05) total VFA concentration than CON. In Experiment 2, dietary PF and MIX had higher (p < 0.05) saturated fatty acid concentrations in the blood of Hanwoo cows, while dietary VE and MIX had higher (p < 0.05) vitamin E concentrations. Estrogen concentrations in the blood of Hanwoo cows were lower (p < 0.05) in all treatments with supplementary diets. All treatments with supplementary diets had lower (p < 0.05) AI numbers, resulting in a higher pregnancy rate (p < 0.05) of Hanwoo cows. The present study found that the single and combo supplements with PF and vitamin E had beneficial effects on the reproductive performances of Hanwoo cows on estrus. |
| format | Article |
| id | doaj-art-eb41ca60c8d540f7b639f7864f2187c6 |
| institution | OA Journals |
| issn | 2672-0191 2055-0391 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Korean Society of Animal Sciences and Technology |
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| series | Journal of Animal Science and Technology |
| spelling | doaj-art-eb41ca60c8d540f7b639f7864f2187c62025-08-20T02:33:15ZengKorean Society of Animal Sciences and TechnologyJournal of Animal Science and Technology2672-01912055-03912025-05-0167358159110.5187/jast.2024.e41Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cowsYoung Ho Joo0Chang Hyun Baeg1Ji Yoon Kim2Bu Gil Choi3Dimas Hand Vidya Paradhipta4Dong Hyeon Kim5Seong Shin Lee6Sam Churl Kim7Division of Applied Life Science (BK21Four, Institute of Agriculture & Life Science), Gyeongsang National University, Jinju 52828, KoreaDivision of Applied Life Science (BK21Four, Institute of Agriculture & Life Science), Gyeongsang National University, Jinju 52828, KoreaDivision of Applied Life Science (BK21Four, Institute of Agriculture & Life Science), Gyeongsang National University, Jinju 52828, KoreaDivision of Applied Life Science (BK21Four, Institute of Agriculture & Life Science), Gyeongsang National University, Jinju 52828, KoreaDepartement of Animal Nutrition and Feed Science, Faculty of Animal Science, Universitas Gadjah Mada, Yogyakarta 55281, IndonesiaDairy Science Division, National Institute of Animal Science, RDA, Cheonan 31000, KoreaPrecision Animal Nutrition Division, National Institute of Animal Science, RDA, Wanju 55356, KoreaDivision of Applied Life Science (BK21Four, Institute of Agriculture & Life Science), Gyeongsang National University, Jinju 52828, KoreaThe present study investigated the effects of protected dietary fat and vitamin E on the reproductive performances of Hanwoo during the estrus period. The present study consisted of two experiments. Experiment 1 determined the effects of dietary supplements on the in vitro nutrient digestibility and fermentation characteristics in the rumen. Experiment 2 determined the effects of dietary supplements on blood fatty acid profiles, blood metabolites, and the pregnancy rate of Hanwoo cows. The basal diet was a total mixed ration, which was formulated for Hanwoo cows and was treated with different supplements as follows: without supplement (CON); supplemented 1% of protected fat (PF); supplemented 1% vitamin E (VE); and mixed PF and VE at 1:1 (MIX) based on dry matter (DM). The experimental diets were incubated in the rumen buffer for 72 h at 39°C with four replications and three blanks for Experiment 1. In Experiment 2, forty Hanwoo cows on estrus (2.7 ± 0.15 of parity) were assigned to each dietary treatment. Each treatment consisted of ten Hanwoo cows placed in two pens and fed individually (5 steers per pen). The feeding period was conducted for 75 days, from 30 d before to 45 d after artificial insemination (AI). In Experiment 1, dietary treatment did not affect nutrient digestibility or fermentation characteristics in the rumen except for the concentration of total volatile fatty acid (VFA). Dietary PF had a higher (p < 0.05) total VFA concentration than CON. In Experiment 2, dietary PF and MIX had higher (p < 0.05) saturated fatty acid concentrations in the blood of Hanwoo cows, while dietary VE and MIX had higher (p < 0.05) vitamin E concentrations. Estrogen concentrations in the blood of Hanwoo cows were lower (p < 0.05) in all treatments with supplementary diets. All treatments with supplementary diets had lower (p < 0.05) AI numbers, resulting in a higher pregnancy rate (p < 0.05) of Hanwoo cows. The present study found that the single and combo supplements with PF and vitamin E had beneficial effects on the reproductive performances of Hanwoo cows on estrus. http://www.ejast.org/archive/view_article?doi=10.5187/jast.2024.e41Blood metabolitesHanwoo cowPregnancy rateProtected fatVitamin E |
| spellingShingle | Young Ho Joo Chang Hyun Baeg Ji Yoon Kim Bu Gil Choi Dimas Hand Vidya Paradhipta Dong Hyeon Kim Seong Shin Lee Sam Churl Kim Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows Journal of Animal Science and Technology Blood metabolites Hanwoo cow Pregnancy rate Protected fat Vitamin E |
| title | Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows |
| title_full | Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows |
| title_fullStr | Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows |
| title_full_unstemmed | Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows |
| title_short | Effects of dietary protected fat and vitamin E on in vitro rumen fermentation characteristics and reproductive performances of Hanwoo cows |
| title_sort | effects of dietary protected fat and vitamin e on in vitro rumen fermentation characteristics and reproductive performances of hanwoo cows |
| topic | Blood metabolites Hanwoo cow Pregnancy rate Protected fat Vitamin E |
| url | http://www.ejast.org/archive/view_article?doi=10.5187/jast.2024.e41 |
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