HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF DAIRY COWS .A REVIEW
Our objective was to provide a review of factors influencing heat stress on reproductive and physiological responses. ln the dairy cow, ambient temperature is an important determinant of reproductive performance. Heat stress decreases the intensity and duration of estrus expression and increases...
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| Format: | Article |
| Language: | English |
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Fakultas Pertanian Universitas Wangsa Manggala Yogyakarta
2004
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| Online Access: | https://repository.ugm.ac.id/273137/1/2.%20Buletin%20Pertanian%20dan%20Peternakan%20ISSN%201411-6138.pdf |
| _version_ | 1826049678666366976 |
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| author | Budiyanto, Agung |
| author_facet | Budiyanto, Agung |
| author_sort | Budiyanto, Agung |
| collection | UGM |
| description | Our objective was to provide a review of factors influencing heat stress on
reproductive and physiological responses. ln the dairy cow, ambient temperature is
an important determinant of reproductive performance. Heat stress decreases the
intensity and duration of estrus expression and increases the incidence of anestrus
and silent ovulation. The consequences of these changes are increasing the number
of insemination and reduction of conception rate. Heat stress also affect the circulation
of some reproduction hormones, reducing the plasma concentration of luteinizing
hormone (LH), gonadotrophin hormones (Gn-RH) and progesterone. These endocrine
changes reduce follicular activity and alterthe ovulatory mechanism and decrease in
oocyte and embryo quality. These may explain the low fertility of cattle in the hot
temperature environment. The physiology effects such as hyperthermia, dry matter
intake, reduce the energy balance, the appetite, feed intake, respiratory and digestive
system also affected by heat stress. The treatments to improve lowfertility contributed by heat stress such as hormone treatments to induce follicular development and
ovulation, decrease postpartum infertility and improve the pregnancy rate, the utilization of cooling systems may have beneficial effect on fertility, and the increasing feed intake quality may effect on the negative energy balance. Allthese treatments are still
unable to match the condition in normal environment. |
| first_indexed | 2024-03-13T23:50:22Z |
| format | Article |
| id | oai:generic.eprints.org:273137 |
| institution | Universiti Gadjah Mada |
| language | English |
| last_indexed | 2024-03-13T23:50:22Z |
| publishDate | 2004 |
| publisher | Fakultas Pertanian Universitas Wangsa Manggala Yogyakarta |
| record_format | dspace |
| spelling | oai:generic.eprints.org:2731372017-06-12T01:25:26Z https://repository.ugm.ac.id/273137/ HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF DAIRY COWS .A REVIEW Budiyanto, Agung Veterinary Sciences Our objective was to provide a review of factors influencing heat stress on reproductive and physiological responses. ln the dairy cow, ambient temperature is an important determinant of reproductive performance. Heat stress decreases the intensity and duration of estrus expression and increases the incidence of anestrus and silent ovulation. The consequences of these changes are increasing the number of insemination and reduction of conception rate. Heat stress also affect the circulation of some reproduction hormones, reducing the plasma concentration of luteinizing hormone (LH), gonadotrophin hormones (Gn-RH) and progesterone. These endocrine changes reduce follicular activity and alterthe ovulatory mechanism and decrease in oocyte and embryo quality. These may explain the low fertility of cattle in the hot temperature environment. The physiology effects such as hyperthermia, dry matter intake, reduce the energy balance, the appetite, feed intake, respiratory and digestive system also affected by heat stress. The treatments to improve lowfertility contributed by heat stress such as hormone treatments to induce follicular development and ovulation, decrease postpartum infertility and improve the pregnancy rate, the utilization of cooling systems may have beneficial effect on fertility, and the increasing feed intake quality may effect on the negative energy balance. Allthese treatments are still unable to match the condition in normal environment. Fakultas Pertanian Universitas Wangsa Manggala Yogyakarta 2004 Article PeerReviewed application/pdf en https://repository.ugm.ac.id/273137/1/2.%20Buletin%20Pertanian%20dan%20Peternakan%20ISSN%201411-6138.pdf Budiyanto, Agung (2004) HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF DAIRY COWS .A REVIEW. Buletin Pertanian dan Peternakan, 5 (10). pp. 71-79. ISSN 1411-6138 |
| spellingShingle | Veterinary Sciences Budiyanto, Agung HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF DAIRY COWS .A REVIEW |
| title | HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF
DAIRY COWS .A REVIEW |
| title_full | HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF
DAIRY COWS .A REVIEW |
| title_fullStr | HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF
DAIRY COWS .A REVIEW |
| title_full_unstemmed | HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF
DAIRY COWS .A REVIEW |
| title_short | HEAT STRESS EFFECT ON REPRODUCTION AND PHYSIOLOGY OF
DAIRY COWS .A REVIEW |
| title_sort | heat stress effect on reproduction and physiology of dairy cows a review |
| topic | Veterinary Sciences |
| url | https://repository.ugm.ac.id/273137/1/2.%20Buletin%20Pertanian%20dan%20Peternakan%20ISSN%201411-6138.pdf |
| work_keys_str_mv | AT budiyantoagung heatstresseffectonreproductionandphysiologyofdairycowsareview |