Article
Veterinary Sciences
Francesca Daniela Sotgiu, Antonio Spezzigu, Cristian Porcu, Alberto Stanislao Atzori, Gian Simone Sechi, Valeria Pasciu, Giovanni Molle, Fiammetta Berlinguer
Summary: This study evaluated the effectiveness and economic impact of a reproductive protocol using repeated ultrasound scanning and GnRH in advancing pregnancy onset in ewe lambs. The results showed that the use of ultrasound scanning and GnRH can advance pregnancy onset by achieving a 25% pregnancy rate and increasing farm profitability.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
L. L. Hulsman Hanna, J. B. Taylor, P. W. Holland, K. A. Vonnahme, L. P. Reynolds, D. G. Riley
Summary: The productivity of ewes' lifetime has economic implications for producers. This study shows that the number of ewe's birth litter size has a significant impact on their longevity and productive life.
Article
Reproductive Biology
Maria-Teresa Pellicer-Rubio, Gabriel Laignel, Yoan Thomas, Sophie Prache, Marc Benoit, Herve Tournadre
Summary: Hormonal treatments are banned in organic farming, but increasing the number of mating sessions per year can improve annual ewe productivity without violating this restriction.
Article
Reproductive Biology
B. M. Manjunatha, Ali Al-Hosni, Samir Al-Bulushi
Summary: This study examines the effect of advancing the breeding season on the reproductive performance of dromedary camels. The results show that advancing the breeding season by two months significantly affects the size of dominant follicles, ovulation rate, pregnancy rates, and libido in camels. The study emphasizes the importance of considering the timing of breeding in order to achieve optimal reproductive outcomes in camels.
Article
Agriculture, Dairy & Animal Science
Maria G. Machado-Ramos, Cesar A. Meza-Herrera, Angeles De Santiago-Miramontes, Miguel Mellado, Francisco G. Veliz-Deras, Fernando Arellano-Rodriguez, Viridiana Contreras-Villarreal, Jose R. Arevalo, Dalia I. Carrillo-Moreno, Jessica M. Flores-Salas
Summary: In arid Northern Mexico, surplus feed from dairy farms, which retains high nutritional value, could be used to improve the reproductive efficiency of goats managed under extensive systems. This study aimed to evaluate the effect of targeted supplementation with dairy-cow-feed leftovers on the reproductive performance of rangeland goats. The results showed that supplementation significantly improved ovulation rate and pregnancy rate in the supplemented group compared to the non-supplemented group.
Article
Agriculture, Dairy & Animal Science
Zully Ramos, Dorian J. Garrick, Hugh T. Blair, Ignacio De Barbieri, Gabriel Ciappesoni, Fabio Montossi, Paul R. Kenyon
Summary: This study estimated the genetic parameters for a range of production traits and ewe reproductive performance in an Uruguayan Merino flock. The genetic relationships between fiber diameter and reproduction traits were generally negligible, while moderate unfavorable genetic correlations were found between adult clean fleece weight and ewe reproduction traits. Selecting finer fleeces had little to no effect on ewe reproduction traits, while heavier fleeces were associated with reduced reproduction performance. On the other hand, genetically heavier yearling ewes displayed greater reproductive performance.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Mohsen Vafaei Salarpoor, Ali Kadivar, Najmeh Davoodian, Pegah Khosravian, Naser Shams Esfandabadi, Abdonnaser Mohebbi, Hossein Mehrban
Summary: This study aimed to develop slow-release progesterone micro-particles for estrus synchronization in non-breeding season ewes. Different doses of progesterone were injected into ewes, and progesterone levels and estrus behavior were measured. The results showed that the injectable progesterone formulation was effective in inducing estrus in ewes, and it can be used as an alternative to conventional intravaginal devices.
REPRODUCTION IN DOMESTIC ANIMALS
(2023)
Article
Agriculture, Dairy & Animal Science
T. W. J. Keady, J. P. Hanrahan
Summary: This study evaluated the impact of different sheep genotypes on ewe performance and lamb production, finding that the Belclare genotype showed superior performance in terms of litter size but produced lighter offspring compared to the other genotypes; ewes that lambed at 1 year were lighter at 19 months, but it did not significantly affect ewe survival rate.
Article
Agriculture, Dairy & Animal Science
Thiago Kan Nishimura, Amanda Guimaraes da Silva, Gabriela Abitante, Carl Robertson Dahlen, Rodrigo Silva Goulart, German Dario Ramirez Zamudio, Saulo Luz Silva, Miguel Henrique de Almeida Santana, Arlindo Saran Netto, Paulo Roberto Leme, Guilherme Pugliesi
Summary: This study evaluated the effects of early weaning on body composition, hormone concentrations, metabolites, and reproductive performance of Nelore cows. The results showed that early weaning at 150 days can successfully recover the cow's body condition and improve the pregnancy success rate in the next breeding season, regardless of the cow's parity order.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Ecology
Huiying Liu, Chunyan Lu, Songdan Wang, Fei Ren, Hao Wang
Summary: The research found that experimental warming did not significantly affect the duration of the reproductive phases of terrestrial plants globally, but did lead to a lengthening of the growing season. The temperature sensitivity of reproductive phases was influenced by the taxa of plants, and the lengthening of the growing season was affected by the magnitude of warming.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2021)
Article
Agriculture, Dairy & Animal Science
Kate J. Flay, Anne L. Ridler, Chris W. R. Compton, Paul R. Kenyon
Summary: Ewe wastage is a combination of on-farm mortality and premature culling. This study is the first to report actual wastage incidence and causes in commercial sheep flocks in New Zealand. Pre-mating body condition score was identified as a predictor of wastage.
Article
Agronomy
Jimmy Semakula, Rene A. Corner-Thomas, Stephen T. Morris, Hugh T. Blair, Paul R. Kenyon
Summary: A two-stage study investigated the impact of herbage availability and season on liveweight loss in sheep during fasting, finding that delayed weighing can significantly affect data accuracy. Correcting delayed liveweights with equations can provide more accurate estimates when immediate data is unavailable.
Article
Reproductive Biology
M. H. C. Pereira, B. Cappellozza, W. M. Costa, L. Barbosa, R. L. A. Cerri, J. L. M. Vasconcelos
Summary: This experiment aimed to evaluate the effects of increasing doses of estradiol cypionate (ECP) on the reproductive function of lactating dairy cows during the summer. The results showed that a higher dose of ECP increased the percentage of cows showing estrus, but it did not improve the reproductive function of lactating dairy cows during the summer, regardless of whether they were assigned to timed artificial insemination or timed-embryo transfer protocols.
Article
Agriculture, Dairy & Animal Science
Ma Minteguiaga, G. Banchero, S. Fierro, Ml Adrien, J. Olivera-Muzante
Summary: The aim of this study was to evaluate the impact of focus feeding on reproductive and metabolic variables. The results showed that high energy-protein supplementation before the review service did not increase reproductive losses or prolificacy.
Article
Fisheries
Luke P. Oliver, Joseph T. Evavold, Kenneth D. Cain
Summary: The intensive commercial production of burbot fingerlings relies on consistent supply of eggs and larvae throughout the year, which can be achieved by successfully spawning burbot outside their natural spawning season through manipulation of temperature and photoperiod. The study found that out-of-season spawning of burbot was successful, with no significant differences in egg production, fertilization, or larval growth and survival compared to in-season spawning. This method could be an important tool for ensuring a reliable supply of burbot fingerlings for commercial production.
Article
Agriculture, Dairy & Animal Science
Elaheh Khazaee, Nima Farzaneh, Pezhman Mirshokraei, Seyed-Elias Tabatabaeizadeh, Hesam Dehghani
REPRODUCTION IN DOMESTIC ANIMALS
(2018)
Article
Agriculture, Dairy & Animal Science
M. T. Garoussi, J. Mehrzad, A. Nejati
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2019)
Article
Veterinary Sciences
Gholamreza Razmi, Saeed Yaghfoori, Mehrdad Mohri, Alirez Haghparast, Shahin Tajeri
ONDERSTEPOORT JOURNAL OF VETERINARY RESEARCH
(2019)
Article
Agriculture, Dairy & Animal Science
Niloufar Tashakkori, Babak Khoramian, Mehran Farhoodi Moghadam, Mohamad Heidarpour, Komeil Mashayekhi, Nima Farzaneh
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2020)
Article
Agriculture, Dairy & Animal Science
M. T. Garoussi, O. Mavadati, M. Bahonar, M. J. Ragh
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2020)
Article
Biochemistry & Molecular Biology
Narges Khaleghnia, Mehrdad Mohri, Hesam A. Seifi
Summary: Iron supplementation did not significantly affect the growth and health of newborn calves, but there were significant differences between the test and control groups in some measured variables.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Veterinary Sciences
Nafiseh Keivani Rad, Mehrdad Mohri, Hesam A. Seifi, Alireza Haghparast
Summary: This study found that supplementation with banana in neonatal calves led to improved hematological, biochemical, immunological parameters, as well as average daily weight gain.
VETERINARY MEDICINE AND SCIENCE
(2021)
Article
Veterinary Sciences
Morteza Hassanabadi, Mehrdad Mohri, Hesam A. Seifi
Summary: The study showed that injection of vitamin D3 significantly influenced the levels of 25(OH) vitamin D, urea, insulin, and insulin resistance index, leading to a reduction in insulin resistance. On the other hand, the control group had higher levels of glucose, NEFA, BHBA concentration, and AST activity. Time had a significant effect on most measured variables, except for IGF-1 and insulin, with no group and time interactions observed.
VETERINARY MEDICINE AND SCIENCE
(2022)
Article
Veterinary Sciences
Kimia Alizadeh, Saba Ahmadi, Ali Asghar Sarchahi, Mehrdad Mohri
Summary: The aim of this study was to determine the reference values of 25(OH) vitamin D in dogs and its concentration in different groups. The results showed that age, sex, breed, housing conditions, and diet did not have a significant impact on the amount of 25(OH) vitamin D. However, there was a correlation between 25(OH) vitamin D concentration and hematology and serum biochemical parameters.
VETERINARY MEDICINE AND SCIENCE
(2022)
Article
Veterinary Sciences
Samuel Kia, Mehrdad Mohri, Hesam A. Seifi
Summary: This field-based cohort study evaluated the value and critical points of precalving serum nonesterified fatty acids (NEFA) in predicting postpartum diseases and reproductive performance in dairy cows. The results showed significant relationships between precalving NEFA concentrations and the likelihood of pregnancy at the first and first two inseminations, as well as dystocia and milk fever occurrence. Increasing NEFA during the prepartum period could adversely affect the reproductive efficiency of dairy cows.
VETERINARY MEDICINE AND SCIENCE
(2023)
Article
Veterinary Sciences
Helia Kamali Sadeghian, Mehrdad Mohri
Summary: This study investigated the concentrations of 25(OH)D, PTH, and immunity markers in dogs with transmissible venereal tumour (TVT). The results showed that 25(OH)D concentrations were significantly lower in dogs with TVT compared to healthy dogs, while PTH, immunoglobulin G, and interleukin (IL)-9 concentrations were higher in the dogs with TVT. However, the causal relationship between 25(OH)D and TVT remains incompletely understood, and further studies are needed to elucidate the exact role of 25(OH)D in canine TVT and the potential usefulness of vitamin D supplementation as a prophylactic or adjunct to chemotherapy.
VETERINARY MEDICINE AND SCIENCE
(2023)
Article
Veterinary Sciences
Mehran Dabiri, Jorgen S. Agerholm, Massoud Talebkhan Garoussi
VETERINARY RECORD CASE REPORTS
(2019)
Article
Veterinary Sciences
Roya Pourmohammad, Mehrdad Mohri, Hesam Seifi, Kamran Sardari
TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
(2019)
Article
Veterinary Sciences
Abolfazl Mohammadi, Hesam A. Seifi, Nima Farzaneh
VETERINARY RESEARCH FORUM
(2019)
Article
Veterinary Sciences
Farhad Bahraminia, Seyed Reza Emadi, Mohammad Emaneini, Nima Farzaneh, Mehrnaz Rad, Babak Khoramian
VETERINARY RESEARCH FORUM
(2017)