Review
Agriculture, Dairy & Animal Science
Imran Khan, Ayman Mesalam, Yun Seok Heo, Seo-Hyun Lee, Ghulam Nabi, Il-Keun Kong
Summary: The impact of heat stress on reproduction is complex and multifactorial, affecting both animal welfare and fertility. Heat stress leads to a decrease in the developmental competence of oocytes and the fertilizing capacity of spermatozoa, resulting in a declining reproduction rate and losses for the cattle industry. Measures such as advanced reproductive technologies can help minimize the detrimental effects of heat stress on livestock reproduction.
Article
Reproductive Biology
Sebastian Recce, Emilia Huber, Ulises S. Notaro, Fernanda M. Rodriguez, Hugo H. Ortega, Florencia Rey, Marcelo L. Signorini, Natalia R. Salvetti
Summary: This study evaluated the impact of exposure to different THI values during intrauterine development on the reproductive performance of adult Holstein cows. It was found that exposure to high THI values during the first trimester of gestation negatively affected reproductive efficiency parameters.
Article
Agriculture, Dairy & Animal Science
Malavika K. Adur, Jacob T. Seibert, Matthew R. Romoser, Katie L. Bidne, Lance H. Baumgard, Aileen F. Keating, Jason W. Ross
Summary: This study evaluated the impact of heat stress on the abundance of heat shock proteins (HSP) in the porcine endometrium, and investigated the regulatory effects of treatment methods on HSP. The results demonstrated significant changes in the abundance of HSP in the porcine endometrium in response to heat stress and progestin supplementation.
JOURNAL OF ANIMAL SCIENCE
(2022)
Review
Veterinary Sciences
Welligton Conceicao da Silva, Jamile Andrea Rodrigues da Silva, Raimundo Nonato Colares Camargo-Junior, Eder Bruno Rebelo da Silva, Maria Roseane Pereira dos Santos, Rinaldo Batista Viana, Andre Guimaraes Maciel e Silva, Cleidson Manoel Gomes da Silva, Jose de Brito Lourenco-Junior
Summary: Thermal stress has severe effects on the wellbeing and reproduction of cattle, including changes in oogenesis and spermatogenesis, which have been a concern for decades. It reduces the production of spermatozoids and ovarian follicles, and increases defects in gametes or their intermediate stages. In cattle able to reproduce, it leads to a decrease in estrus manifestation and an increase in embryonic mortality. Therefore, ensuring good welfare conditions such as water supply and shaded areas can improve reproductive parameters in cattle.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Veterinary Sciences
Valence B. B. Mutwedu, Albert W. W. Nyongesa, Jafred M. M. Kitaa, Rodrigue B. B. Ayagirwe, Chasinga Baharanyi, James M. M. Mbaria
Summary: This study demonstrates the therapeutic value of Moringa oleifera seed extracts in alleviating the damage caused by heat stress and improving reproductive performances and functional systems in rabbits. This is of great significance for addressing the issues of heat stress due to global warming and improving animal productivity and reproductive health.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Biology
Candelario A. Castillo-Salas, Guillermo Luna-Nevarez, Javier R. Reyna-Granados, Rosa I. Luna-Ramirez, Sean W. Limesand, Pablo Luna-Nevarez
Summary: This study validated the association of seven thermo-tolerance SNP markers with reproductive and physiological traits in Pelibuey ewes raised in a semiarid region. The results showed that three SNP markers, rs421873172, rs417581105, and rs407804467, were significantly associated with reproductive and physiological traits. Ewes carrying favorable SNP genotypes showed improved reproductive performance and decreased physiological parameters.
JOURNAL OF THERMAL BIOLOGY
(2023)
Article
Biophysics
Amanda Aparecida Brito, Natascha Almeida Marques da Silva, Ana Luisa Neves Alvarenga Dias, Mara Regina Bueno de Mattos Nascimento
Summary: Heat waves have negative effects on the reproductive performance of sows, including decreased gestation and birth rates, increased abortion rates, and higher occurrences of mummified and stillborn piglets.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2022)
Article
Plant Sciences
Ho Viet Khoa, Puja Kumari, Hiroko Uchida, Akio Murakami, Satoshi Shimada, Koji Mikami
Summary: The heat stress responses and thermotolerance of different 'Bangia' species vary, with 'Bangia' sp. ESS1 showing stronger heat resistance compared to 'Bangia' sp. ESS2 and B. atropurpurea, which exhibit higher heat sensitivity. These findings highlight diverse heat-stress response strategies among species within the 'Bangia' clades.
Article
Biology
Manoj Kumar, Poonam Ratwan, S. P. Dahiya, Anil Kumar Nehra
Summary: Heat stress impacts poultry production, reproduction, and growth performance, leading to industry losses and increased sensitivity to high temperatures, requiring genetic strategies to mitigate its effects.
JOURNAL OF THERMAL BIOLOGY
(2021)
Article
Multidisciplinary Sciences
Aroosa Khurshid, Shahbaz Ali, Rehan Inayat, Ansa Tamkeen, Muhammad Bilal Tahir, Yasir Niaz, Inzamam ul Haq, Hamed A. Ghramh, Solomon Boamah, Kexin Zhang, Changzhong Liu
Summary: This study provides the first comprehensive evaluation of the effects of different temperatures and time intervals on the developmental stages and population parameters of the green peach aphid. The results show that exposure to high temperatures significantly affects the survival rate, longevity, and reproductive rate of the aphid.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Jyotsnarani Biswal, Kennady Vijayalakshmy, T. K. Bhattacharya, Habibar Rahman
Summary: This article discusses the impact of heat stress on poultry production with the rising global temperatures, focusing on aspects such as feed intake, growth, and egg production. It emphasizes the use of advanced biotechnology tools and suitable mitigation strategies to reduce the adverse effects of heat stress on the poultry industry.
WORLDS POULTRY SCIENCE JOURNAL
(2022)
Review
Agriculture, Dairy & Animal Science
Zvi Roth
Summary: Reduced reproductive performance of lactating cows during the summer is mainly due to intense genetic selection for high milk production, which puts a heavy burden on the thermoregulatory mechanism. Efforts have been made to understand the mechanism by which heat stress affects fertility. Data so far suggests that the impact of thermal stress on the female reproductive tract is multifactorial. Based on this understanding, new strategies to mitigate the effects of heat stress have been developed. Cooling is the dominant strategy used to alleviate the effects of heat stress, although it cannot completely eliminate the decline in reproduction. Additional hormonal treatments are suggested to improve reproductive performance during the summer. Comprehensive reproductive management combining multiple strategies is suggested to be more beneficial.
REPRODUCTION IN DOMESTIC ANIMALS
(2022)
Article
Multidisciplinary Sciences
Josias Steve Adjassin, Alassan Seidou Assani, Abou Adam Bani, Hilaire Sorebou Sanni Worogo, Cham Donald Adegbeiga Alabi, Brice Gerard Comlan Assogba, Erick Bertrand Virgile Azando, Ibrahim Traore Alkoiret
Summary: The reproductive parameters of dairy goats are affected by heat stress, with 1/2S1/2RM crossbred goats showing better performance in a tropical sub-humid environment in Benin.
Article
Agronomy
Neeta Lohani, Mohan B. Singh, Prem L. Bhalla
Summary: This study reported the impact of short-term heat stress on oilseed rape. Short heat stress episodes, especially at temperatures above 36 degrees C, resulted in decreased reproductive fitness and reduced seed production. It also had negative effects on seed quality.
JOURNAL OF AGRONOMY AND CROP SCIENCE
(2022)
Review
Agriculture, Dairy & Animal Science
Ayman Abd El-Aziz, Mahmoud Abo Ghanima, Daniel Mota-Rojas, Anjum Sherasiya, Francesca Ciani, Karim El-Sabrout
Summary: This review provides an overview of the potential advantages of using different bee products in poultry and rabbit farms, highlighting their positive effects on animal health, production, and immunity.
Article
Agriculture, Dairy & Animal Science
K. L. Bunter, C. R. G. Lewis, S. Newman
JOURNAL OF ANIMAL SCIENCE
(2015)
Article
Agriculture, Dairy & Animal Science
Kim L. Bunter, Andrew A. Swan, Ian W. Purvis, Daniel Brown
ANIMAL PRODUCTION SCIENCE
(2016)
Article
Agriculture, Dairy & Animal Science
J. R. Craig, C. L. Collins, K. L. Bunter, J. J. Cottrell, F. R. Dunshea, J. R. Pluske
JOURNAL OF ANIMAL SCIENCE
(2017)
Article
Agriculture, Dairy & Animal Science
K. L. Bunter, S. Hermesch
ANIMAL PRODUCTION SCIENCE
(2017)
Article
Agriculture, Dairy & Animal Science
Kim L. Bunter, Andrew A. Swan, Daniel J. Brown, Forbes D. Brien, Jennifer Smith
ANIMAL PRODUCTION SCIENCE
(2018)
Article
Agriculture, Dairy & Animal Science
C. R. G. Lewis, K. L. Bunter
JOURNAL OF ANIMAL SCIENCE
(2013)
Article
Agriculture, Dairy & Animal Science
Kim L. Bunter, David J. Johnston
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
Kim L. Bunter, David J. Johnston, Matthew L. Wolcott, Geoffry Fordyce
ANIMAL PRODUCTION SCIENCE
(2014)
Article
Agriculture, Dairy & Animal Science
Laura Vargovic, Susanne Hermesch, Rebecca Z. Athorn, Kim L. Bunter
Summary: Electronic sow feeding (ESF) systems are used to monitor feed intake and behavior in group-housed sows, with the study finding moderate to high heritability and repeatability for time-related traits, indicating genetic variation among individuals in their feeding behaviors. Individual phenotypes derived from ESF data could be valuable for genetic evaluations, but differences in the capabilities of ESF systems hindered comparison between farms.
JOURNAL OF ANIMAL SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Laura Vargovic, Susanne Hermesch, Rebecca Z. Athorn, Kim L. Bunter
Summary: This study found that feed intake and feeding behavior traits were associated with reproductive performance in sows, with lower feed intake being linked to undesirable outcomes. There were some genetic differences between farms in terms of these relationships, and some genetic correlations were observed between feeding traits and various reproductive outcomes.
Article
Agriculture, Dairy & Animal Science
S. F. Walkom, K. L. Bunter, H. W. Raadsma, P. M. Gurman, D. J. Brown, W. Gibson, E. Wilding, M. B. Ferguson
Summary: This article describes the use of footrot scores for genetic evaluations and introduces the transition technique to standardize disease prevalence. The transition matrices are established to describe disease progression between scoring events, and the technique improves correlations between events and reduces the need for repeat scoring. Overall, it provides a more accurate method for accounting for variation in disease prevalence and allows for greater flexibility and accuracy in scoring virulent footrot challenges for producers.
Article
Agriculture, Dairy & Animal Science
Laura Vargovic, Jo-Anne Harper, Kim L. Bunter
Summary: In pig production, improving the reproductive and fattening capabilities of sows is the ultimate goal. This study found that the sow's influence on the number of high-quality slaughter pigs is not solely related to litter size variation. The sow's performance varies with age and environmental factors, and its genetic background also affects piglet performance. The study highlights the importance of considering the sow's influence on tail-enders to improve the quality of pigs.
Article
Agriculture, Dairy & Animal Science
K. L. Bunter, D. J. Brown, P. M. Gurman, L. Li, A. A. Swan
Summary: The study found that lambing ease has significant implications for lamb survival, with strong genetic correlations observed between lambing ease and birth weight, gestation length, and dead at birth lambs.
ANIMAL PRODUCTION SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
K. L. Bunter, A. A. Swan, P. M. Gurman, D. J. Brown
Summary: This study focused on analyzing genetic parameters and breeding values related to reproductive traits in Merino sheep based on Australian data. The results indicated that traits such as conception, litter size, rearing ability, maternal behavior, and body condition score have independent genetic evaluation values, facilitating breeders in selective breeding processes.
ANIMAL PRODUCTION SCIENCE
(2021)