Like all ruminants, sheep are members of the order Artiodactyla, the even-toed ungulates. (wikipedia.org)
Domestic sheep are relatively small ruminants, usually with a crimped hair called wool and often with horns forming a lateral spiral. (wikipedia.org)
But subsequently serum has been associated with fetal overgrowth in ruminants to give the so-called Large Offspring Syndrome at birth [ 1 ]. (biomedcentral.com)
Conceptus-endometrial interactions in ruminants are complex and involve carefully orchestrated temporal and spatial alterations in gene expression regulated by hormones from the ovary and conceptus. (bioscientifica.com)
Ovis4
Sheep (PL: sheep) or domestic sheep (Ovis aries) are a domesticated, ruminant mammal typically kept as livestock. (wikipedia.org)
Although the term sheep can apply to other species in the genus Ovis, in everyday usage it almost always refers to domesticated sheep. (wikipedia.org)
The highly prolific breeds of domestic sheep ( Ovis aries ) are globally valuable genetic resources for sheep industry. (biomedcentral.com)
In domestic sheep ( Ovis aries ), a large range of litter sizes (number of offspring from 1 to 9) has been observed among and within breeds, in contrast to several other domestic animal species in which females generally have either 1-2 (cattle, horses and goats) or more than 3 offspring (e.g., dogs and pigs). (biomedcentral.com)
Domestic sheep7
Numbering a little over one billion, domestic sheep are also the most numerous species of sheep. (wikipedia.org)
The exact line of descent from wild ancestors to domestic sheep is unclear. (wikipedia.org)
Excavations show that in about 6000 BC, during the Neolithic period of prehistory, the Castelnovien people, living around Châteauneuf-les-Martigues near present-day Marseille in the south of France, were among the first in Europe to keep domestic sheep. (wikipedia.org)
Depending on breed, domestic sheep may have no horns at all (i.e. polled), or horns in both sexes, or in males only. (wikipedia.org)
Another trait unique to domestic sheep as compared to wild ovines is their wide variation in color. (wikipedia.org)
Colors of domestic sheep range from pure white to dark chocolate brown, and even spotted or piebald. (wikipedia.org)
Highly prolific breeds of domestic sheep are valuable genetic resources for the global sheep industry. (biomedcentral.com)
Pregnancy3
This protease activity has recently been ascribed to serine metalloprotease(s), including pregnancy-associated plasma protein-A (PAPP-A), which was first detected in human follicular fluid nearly 20 yr ago. (bioone.org)
Your dietary needs during pregnancy are different, with greater needs for protein (80-100 grams per day is recommended), greater needs for sodium, and a propensity to low blood sugar. (anneshealthplace.com)
INTRODUCTION: The consumption of a healthy diet is essential during the preconception period, pregnancy and lactation to guarantee maternal-fetal and newborn health. (bvsalud.org)
Species1
Wild sheep are largely variations of brown hues, and variation within species is extremely limited. (wikipedia.org)
Gene2
Equatorial segment protein (ESP), a novel 349-amino acid concanavalin-A-binding protein encoded by a two-exon gene ( SP-ESP ) located on chromosome 15 at q22, has been localized to the equatorial segment of ejaculated human sperm. (bioone.org)
Recently, transcriptomic analyses via RNA-seq and microarray analysis of different sheep reproductive organs have provided further insights into the gene expression landscapes of these tissues, and a few novel genes (e.g. (biomedcentral.com)
Breeds3
A few primitive breeds of sheep retain some of the characteristics of their wild cousins, such as short tails. (wikipedia.org)
To improve our knowledge of the sheep prolificacy traits, we conducted mRNA-miRNA integrated profiling of ovarian tissues from two pure breeds with large (Finnsheep) vs. small (Texel) litter sizes and their F1 crosses, half of which were fed a flushing diet. (biomedcentral.com)
Earlier studies have indicated that fertility traits in sheep can be regulated by individual genetic markers with major effects, which are known as fecundity genes [ 10 , 11 ], or by polygenic effects, particularly in prolific breeds, such as Finnsheep and Romanov [ 12 ]. (biomedcentral.com)
Earliest3
One of the earliest animals to be domesticated for agricultural purposes, sheep are raised for fleeces, meat (lamb, hogget or mutton) and milk. (wikipedia.org)
Archaeological evidence from statuary found at sites in Iran suggests that selection for woolly sheep may have begun around 6000 BC, and the earliest woven wool garments have been dated to two to three thousand years later. (wikipedia.org)
ESP is the earliest known protein to be recognized as a marker for the specification of the equatorial segment, and it allows this region to be traced through all phases of acrosomal biogenesis. (bioone.org)
Adult2
An adult female is referred to as a ewe (/juː/), an intact male as a ram, occasionally a tup, a castrated male as a wether, and a young sheep as a lamb. (wikipedia.org)
The birth and adult development of 'Dolly' the sheep, the first mammal produced by the transfer of a terminally differentiated cell nucleus into an egg, provided unequivocal evidence of nuclear equivalence among somatic cells. (bioscientifica.com)
This review summarizes evidence for the role of proteolytic enzymes that degrade and inactivate insulin-like growth factor binding proteins (IGFBP) during follicular development in mammals. (bioone.org)
The rearing of sheep for secondary products, and the resulting breed development, began in either southwest Asia or western Europe. (wikipedia.org)
Hudnut-Beumler J, Kaar JL, Taylor A, Kelsey MM, Nadeau KJ, Zeitler P, Snell-Bergeon J, Pyle L, Cree-Green M. Development of type 2 diabetes in adolescent girls with polycystic ovary syndrome and obesity. (cuanschutz.edu)
Torres-Zegarra C, Sundararajan D, Benson J, Seagle H, Witten M, Walders-Abramson N, Simon SL, Huguelet P, Nokoff NJ, Cree-Green M. Care for Adolescents With Polycystic Ovary Syndrome: Development and Prescribing Patterns of a Multidisciplinary Clinic. (cuanschutz.edu)
Animals5
Whether the hormonal control of PAPP-A production/activity by the ovary differs between monotocous and polytocous animals will require further study. (bioone.org)
Sheep continue to be important for wool and meat today, and are also occasionally raised for pelts, as dairy animals, or as model organisms for science. (wikipedia.org)
In both ancient and modern religious ritual, sheep are used as sacrificial animals. (wikipedia.org)
Practically from its inception, ancient Greek civilization relied on sheep as primary livestock, and were even said to name individual animals. (wikipedia.org)
I've found research on animals, especially sheep, but none of it has personally been much help to me. (anneshealthplace.com)
Production1
In the modern era, Australia, New Zealand, the southern and central South American nations, and the British Isles are most closely associated with sheep production. (wikipedia.org)
Role1
Although epidemiological studies have focused on the role of maternal diet on foetal programming, the underlying mechanisms are still poorly understood. (bvsalud.org)
Important2
Ancient Romans kept sheep on a wide scale, and were an important agent in the spread of sheep raising. (wikipedia.org)
Nutrition is one of the most important environmental factors affecting reproductive performance in sheep. (biomedcentral.com)
Blood1
1993. Malathion disposition in dermally and orally treated rats and its impact on the blood serum acetylcholine esterase and protein profile. (cdc.gov)
Large1
There is a large lexicon of unique terms for sheep husbandry which vary considerably by region and dialect. (wikipedia.org)
Good1
My advice is to always have some good-quality carbohydrates with your protein, to eat plenty of good fats, to salt your food to taste, to drink lots of water (divide your weight in half and drink that many ounces per day), and to avoid simple sugar as much as possible. (anneshealthplace.com)
Human1
Being a key animal in the history of farming, sheep have a deeply entrenched place in human culture, and are represented in much modern language and symbolism. (wikipedia.org)
Follicles5
3. Oestrogen receptor alpha and beta, androgen receptor and progesterone receptor mRNA and protein localisation within the developing ovary and in small growing follicles of sheep. (nih.gov)
6. The capacity of primordial follicles in fetal bovine ovaries to initiate growth in vitro develops during mid-gestation and is associated with meiotic arrest of oocytes. (nih.gov)
20. Gonadotrophin responsiveness, aromatase activity and insulin-like growth factor binding protein content of bovine ovarian follicles during the first follicular wave. (nih.gov)
It has been shown that BPA increases testosterone and estradiol production and decreases progesterone levels, reduces ovarian weight and the number of corpora lutea, increases the number of atretic follicles, and reduces the number of antral follicles in the ovaries of adult female rats during adolescence ( 11 ). (sciendo.com)
Moreover, exposure to BPA resulted in a shortening of the time interval between the rise in the estradiol concentration and the pre-ovulatory luteinising hormone (LH) surge compared to the controls and generated changes in the number of follicles in the offspring of pregnant Suffolk sheep ( 42 ). (sciendo.com)
Adult female1
An adult female is referred to as a ewe (/juː/), an intact male as a ram, occasionally a tup, a castrated male as a wether, and a young sheep as a lamb. (wikipedia.org)
Ovarian3
4. Up-regulation of alpha-inhibin expression in the fetal ovary of estrogen-suppressed baboons is associated with impaired fetal ovarian folliculogenesis. (nih.gov)
14. The role of transforming growth factor-beta (TGF-beta) during ovarian follicular development in sheep. (nih.gov)
16. Regulation of baboon fetal ovarian folliculogenesis by estrogen. (nih.gov)
Albumin1
data on pregnancy were recorded and serum levels of progesterone(P 4 ), urea (URE), total protein (TP), albumin (AB), triglyceride (TR), cholesterol (CH) and beta-hydroxy-butyrate (BHB) were determined. (cipav.org.co)
Reproductive2
Estrus synchronization is generally applied for reproductive management in sheep worldwide (Boscos et al 2002) and several methods have been performed with varying degrees of success (Twagramungu et al 1995). (cipav.org.co)
The molecular structure of BPA is similar to the female hormone oestrogen and has a negative effect on the reproductive system, hindering conception, and predisposing women to polycystic ovary syndrome, girls to premature puberty or men to reduced sperm quality ( 35 ). (sciendo.com)
Milk3
One of the earliest animals to be domesticated for agricultural purposes, sheep are raised for fleeces, meat (lamb, hogget or mutton) and milk. (wikipedia.org)
Initially, sheep were kept solely for meat, milk and skins. (wikipedia.org)
An incorporation of concentrate in animal diets is therefore needed to overcome the nutrients requirements such as protein, mineral and vitamins and to optimize the efficiency of feed utilization for growth, gestation, or milk production (Reddy et al 2005). (cipav.org.co)
Growth1
It has also been shown that BPA upregulates the secretion of vascular endothelial growth factor (VEGF) in the granulosa cells of porcine ovaries, which plays a role in angiogenesis, promoting endothelial cell growth and permeability. (sciendo.com)
Expression7
10. Estrogen receptor protein and mRNA expression in the ovary of sheep. (nih.gov)
11. Expression of estrogen receptors alpha and beta in the baboon fetal ovary. (nih.gov)
12. Gene expression and protein localisation for activin-A, follistatin and activin receptors in goat ovaries. (nih.gov)
15. Localization and developmental expression of the activin signal transduction proteins Smads 2, 3, and 4 in the baboon fetal ovary. (nih.gov)
PMID- 3894221 TI - Differential expression of HLA class II antigens on human fetal and adult lymphocytes and macrophages. (nih.gov)
AB - A panel of monoclonal antibodies to monomorphic determinants of the MHC class II subregion locus products: DP, DR and DQ, was used to investigate the expression of these antigens on early lymphocytes and macrophages from human fetal liver (13 20 weeks), placenta (16 weeks and term) and cord blood, in relation to the class II phenotype of cells from adult tonsil and peripheral blood. (nih.gov)
Fetal liver sections and cell suspensions showed differential expression of class II antigens. (nih.gov)
Life1
Many other specific terms for the various life stages of sheep exist, generally related to lambing, shearing, and age. (wikipedia.org)
Features1
8. Studies on morphological features of foetal and adult ovaries in Kano brown goats. (nih.gov)
Brown2
Wild sheep are largely variations of brown hues, and variation within species is extremely limited. (wikipedia.org)
Colors of domestic sheep range from pure white to dark chocolate brown, and even spotted or piebald. (wikipedia.org)
Class1
A class of antibiotics which act by interfering with bacterial protein synthesis within the bacteria which results in the death of the bacteria. (sunsetviewpets.com)
Term1
Although the term sheep can apply to other species in the genus Ovis, in everyday usage it almost always refers to domesticated sheep. (wikipedia.org)