Results 1 to 10 of about 100,825 (161)
The "Ram Effect": A "Non-Classical" Mechanism for Inducing LH Surges in Sheep [PDF]
, 2016 During spring sheep do not normally ovulate but exposure to a ram can induce ovulation. In some ewes an LH surge is induced immediately after exposure to a ram thus raising questions about the control of this precocious LH surge.
A Caraty +85 more
core +16 more sources
Effects of Implanting Exogenous Melatonin 40 Days before Lambing on Milk and Colostrum Quality
Animals, 2022 The effects of exogenous melatonin implanted before lambing on the quality of colostrum and milk yield were quantified in 715 ewes. Forty days before lambing, 246 ewes (1M) received a melatonin implant; another 137 ewes (2M) received two implants, and ...
Francisco Canto +2 more
doaj +1 more source
Serum biochemical reference ranges for pregnant sheep
Bioscience Journal, 2021 Late pregnancy is accompanied by dramatic changes in the metabolism of sheep, in which the nutrient requirements increase and the metabolic capacity of ewes is under severe stress due to the rapid foetal growth and development of the mammary gland.
Laura Ferrari Monteiro Varanis +4 more
doaj +1 more source
Effect of adding carrots as feed supplementation on reproductive performance in Awassi ewes [PDF]
Iraqi Journal of Veterinary Sciences, 2022 The present study was designed to estimate the effect of carrots supplementation on reproductive performance in ewes. Thirty Awassi ewes. Ewes were randomly divided into three equal groups, distributed as 10 ewes for each group.
Nawaf N. Dhahir +2 more
doaj +1 more source
Frontiers in Veterinary Science, 2020 This study aimed at evaluating parasitological and blood variables in native breed Crioula Lanada sheep belonging to the same herd, to identify and compare susceptible or resistant individuals to gastrointestinal nematodes during gestation and lactation ...
Fabiellen Cristina Pereira +7 more
doaj +1 more source
Agriculture, 2022 The aim of this research was to study the impact of supplementary feeding on reproductive traits in sheep. Two groups, L1 (control) and L2 (experimental treatment), of adult females aged between two and six years belonging to the Botosani Karakul sheep ...
Ionică Nechifor +3 more
doaj +1 more source
Revista Colombiana de Ciencias Pecuarias, 2023 Background: The production of biofuels has caused an increase in the prices of agricultural commodities. Thus, the ecological footprint, social inclusion and profitability of production systems have encouraged the use of agroindustrial products as an ...
Cinthia P Lima-Cavalcanti +13 more
doaj +1 more source
Presence of Chlamydia abortus in colostrum, milk and vaginal discharge samples of sheep
Revista Colombiana de Ciencias Pecuarias, 2022 Background: The main transmission route of Chlamydia abortus is by ingesting the microorganism that has been eliminated in vaginal secretions, placental membranes or abortions that contaminate the environment and, possibly, through milk and colostrum ...
María Guadalupe Martínez-Serrano +8 more
doaj +1 more source
Ovine endometrial estrogen receptor expression is altered following PG‐600 administration
Veterinary Medicine and Science, 2023 Background Dysregulation of the estrogen receptor 1 (ESR1) expression during the establishment of pregnancy could contribute to reduce fertility reported in ewes treated with PG‐600.
Hayder Mohammed Hassan Habeeb +5 more
doaj +1 more source
The Effect of Photoperiodic Conditions on GnRH/LH Secretion in Ewes
Animals, 2022 Secretion of gonadotropin releasing hormone (GnRH) and luteinizing hormone (LH) displays a circadian pattern. Data concerning differences in daily GnRH/LH secretion during different seasons in sheep are fragmentary.
Kamila Kopycińska +3 more
doaj +1 more source