Melatonin Treatment at Dry-off Improves Reproductive Performance Postpartum in High-producing Dairy Cows under Heat Stress Conditions

2012 ◽  
Vol 48 (4) ◽  
pp. 577-583 ◽  
Author(s):  
I Garcia-Ispierto ◽  
A Abdelfatah ◽  
F López-Gatius
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Reproductive Performance ◽  
Stress Conditions ◽  
Melatonin Treatment

Daily rumination time of lactating dairy cows under heat stress conditions

2020 ◽  
Vol 88 ◽  
pp. 102484 ◽  
Author(s):  
Theresa Müschner-Siemens ◽  
Gundula Hoffmann ◽  
Christian Ammon ◽  
Thomas Amon
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Stress Conditions ◽  
Lactating Dairy Cows

Lactation and reproductive performance of high producing dairy cows given sustained-release multi-trace element/vitamin ruminal bolus under heat stress condition

2016 ◽  
Vol 187 ◽  
pp. 146-150 ◽  
Author(s):  
Simin Khorsandi ◽  
Ahmad Riasi ◽  
Mohammad Khorvash ◽  
Saeid Ansari Mahyari ◽  
Farhad Mohammadpanah ◽  
...  
Keyword(s):  
Heat Stress ◽  
Sustained Release ◽  
Dairy Cows ◽  
Trace Element ◽  
Reproductive Performance ◽  
Stress Condition ◽  
Heat Stress Condition

scholarly journals Influence of heat stress on reproductive performance in dairy cows and opportunities to reduce its effects – a review

2021 ◽  
pp. 3-11
Author(s):  
T. Penev ◽  
D. Dimov ◽  
N. Vasilev ◽  
J. Mitev ◽  
Tch. Miteva ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Reproductive Performance ◽  
Negative Impact ◽  
Hormonal Treatment ◽  
Open Interval ◽  
The Body ◽  
Main Role ◽  
Hormonal Changes ◽  
Genetic Progress

Abstract. The goal of this review is to consider and discuss the scientific literature related to the effect of heat stress (HS) on reproductive performance in dairy cows and opportunities to reduce its effects. The information in literature shows that the HS topic in dairy cows began to be discussed in the 1970s. As genetic progress related to productivity increases, the requirements for cows also increase, including for their reproduction performance. In the present review, a significant array of scientific papers is examined, as a result of which it is established that HS has a multifaceted effect on reproduction in dairy cows. The main role for the negative impact of HS is the effect of high ambient temperature on the hypothalamic-pituitary-ovarian axis. As a result, hormonal changes occur in the body of cows, which affect the behavior of cows in estrus, the development of follicles in the ovaries and the survival of the embryo in the uterus. These changes affect the main elements of cattle breeding such as length of days open interval, conception rate, number of inseminations required for conception. To mitigate the negative impact of HS on cows, methods have been developed for better estrus detection, for microclimate control, as well as for hormonal treatment of cows in order to increase reproductive performance. Although some progress has been made in each of the measures, HS still poses a serious reproductive problem for dairy cows, especially in the countries with warmer climates. This provokes the interest of many scientists around the world who seek to offer a solution/mitigation to this problem.

scholarly journals A Complex Interrelationship between Rectal Temperature and Dairy Cows’ Performance under Heat Stress Conditions

2016 ◽  
Vol 06 (01) ◽  
pp. 24-30 ◽  
Author(s):  
Meriem Rejeb ◽  
Raoudha Sadraoui ◽  
Taha Najar ◽  
Moncef Ben M’rad
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Rectal Temperature ◽  
Stress Conditions

scholarly journals Genetic dissection of reproductive performance of dairy cows under heat stress

2020 ◽  
Vol 51 (4) ◽  
pp. 511-520 ◽  
Author(s):  
A. Sigdel ◽  
L. Liu ◽  
R. Abdollahi‐Arpanahi ◽  
I. Aguilar ◽  
F. Peñagaricano
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Reproductive Performance ◽  
Genetic Dissection

Productive and reproductive performance, behavior and physiology of cattle under heat stress conditions

2017 ◽  
Vol 5 (3) ◽  
pp. 91-96 ◽  
Author(s):  
José Romero Alexandre Alves ◽  
Thiago Antunes Adriano de Andrade ◽  
Daniel de Medeiros Assis ◽  
Thyago Araújo Gurjão ◽  
Lídio Ricardo Bezerra de Melo ◽  
...  
Keyword(s):  
Heat Stress ◽  
Reproductive Performance ◽  
Stress Conditions ◽  
Performance Behavior
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