given that competition with the larger males for mates is also declining, the chances of parr securing matings are also improving. Thus it is not surprising that the composition of the population is changing as parr increase markedly in abundance. The impact on the long-term stability of the ...
For successful domestication, species need to have suitable behaviors. These can be summarized as flocking, breeding in captivity, a wide home range and a short flight distance. Young and smaller animals were probably also selected initially as easier to handle. The ancestor of the domestic goat ...
tup, ram - uncastrated adult male sheep; "a British term is `tup'" wether - male sheep especially a castrated one black sheep - sheep with a black coat domestic sheep, Ovis aries - any of various breeds raised for wool or edible meat or skin trotter - foot of a pig or sheep especi...
In sheep, prenatal exposure to androgens during a critical period for sexual differentiation of the brain (30-90 days of gestation; 145 days is term) can a... S S,Kosut,R I,... - 《Endocrinology》 被引量: 56发表: 1997年 Chapter 39. Puberty in the Sheep This chapter discusses an in...
a.the skin of a sheep, esp when used for clothing, etc, or with the fleece removed and used for parchment b.(as modifier):a sheepskin coat. 2.(Textiles) a.the skin of a sheep, esp when used for clothing, etc, or with the fleece removed and used for parchment ...
1. Definition and Gender - Ram: Refers to an adult male sheep.- Sheep: A general term for sheep, encompassing both male and female adults as well as young ones.- Goat: Specifically refers to a member of the goat family, which includes both wild and domestic species.2. ...
ReserpineThe presence of prolactin, in quantities comparable with the adult, has been confirmed in the plasma of the fetal sheep a few days before term (140 and 144 days) but at 101 and 105 days only traces were occasionally found despite the presence of considerable quantities in the fetal ...
HSCs harvested from the livers of preimmune fetal sheep and monkeys when injected into the peritoneal cavity of young unrelated fetal sheep and monkey recipients results in stable, long-term postnatal hematopoietic chimerism involving lymphoid, erythroid, and myeloid cells of donor origin. Donor cell ...
and Kostroma provinces to meet the demand for warm fur clothing. The sheepskins were obtained from local northern short-tailed sheep. The Romanovo breed, from which sheepskins are obtained today, was developed through long-term breeding of sheep herds and the selection of sheep for the quality...
Lamb is the meat from youngsheep. It should be distinguished from mutton, which is from adult animals. The two categories together are referred to as sheep meat. Sheep, raised for both meat and wool production, form a significant part of the economy of many countries. The current world prod...