与 «FREEMARTIN»相关的英语书籍
在以下的参考文献中发现
freemartin的用法。与
freemartin相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
Police officer Sam Knight, head of the NYPD's elite Special Operations Squad, and his team of crime specialists search for a deranged killer who has sexually mutilated three women
2
The History of Clinical Endocrinology: A Comprehensive ...
Figure 35 Lillie's classical drawing of the reproductive tract of a freemartin cow: (A
) 1 and 2: scrotal testes; 3: vas deferens; 4: broad ligament, 5: ureter; 6: bladder; 7
: seminal vesicle; 8: vagina; 9: vulva; 10: clitoris. (B and C) 1: testis; ...
3
Biological Actions of Sex Hormones
Lillie (1917), in a classical paper, showed that the freemartin is zygotically a
female which has become modified by the sex hormones of the male twin owing
to fusion of the two chorions and the consequent interchange of blood between
the ...
4
Dairy Cattle Fertility & Sterility
Growth of some male parts in the freemartin heifer is due to testosterone (male
sex hormone) from the bull twin. Note the male sex organs — the seminal
vesicles and vas deferens. Chapter 11 Diseases of reproduction SYMPTOMS OF
MAJOR ...
5
Sex Determination, Differentiation and Intersexuality in ...
(1980) presented evidence for H-Y antigen circulating in the freemartin and
postulated that H-Y antigen of testicular origin could be responsible for the
masculinisation of its ovary, without suggesting the time-course of any such
involvement.
6
Disciplining Reproduction: Modernity, American Life ...
Cole (1917): freemartin (calf) 2. Frederick F. McKenzie ( 1926): pig 3. Emil Witschi
(1932): amphibia Even some of the latecomers to the field began from explicitly
embryologi- cal work, including Gregory Pincus, a reproductive endocrinologist ...
7
Reproduction in Domestic Animals
F reemartinism The freemartin condition is a serious problem resulting in female
sterility in cattle, and has also been found on rare occasions in sheep, goats, and
pigs (Hutt and Rasmusen, 1982; Bearden and Fuquay, 1984). The freemartin ...
8
Reproductive Genomics in Domestic Animals
The term freemartin is now used to describe sterile females born cotwinto amale
in any species. Asalready mentioned, the cases offreemartin are much
morefrequent incattle than insheep, goats,or pigs. The reason for masculinization
of the ...
Zhihua Jiang, Troy L. Ott, 2011
9
Pamphlets on Biology: Kofoid collection
2 it would be likely that, with the strong anastomosis between the male and the
freemartin in the same horn of the uterus, and the much weaker connection to the
other freemartin in the other horn, the amount of hormone filtering over to the ...
10
Vertebrate Embryology: A Laboratory Manual
The freemartin in cattle is an instructive experiment of nature. In instances of
heterosexual twinning (a genetic male and a genetic female co-twins) with
anastomosis of the two placental circulations the female twin is invariably an
intersex, ...
Richard Marshall Eakin, 1978
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找出国内和国际出版社所讨论的内容，以及词语
freemartin在以下新条目的上下文中是如何使用的。
Small Montana ranch sees 5 pairs of twin calves
“A heifer born with a twin bull is called a 'freemartin' and about 95 percent of the time she is infertile,” she said. “While in the uterus the twins are ... «Agri News, 四月 15»
Make a record of twins (or other multiple births)
A freemartin is genetically female, but has many characteristics of a male. The ovaries of the freemartin do not develop correctly, and they ... «CattleNetwork.com, 四月 15»
DNA testing ordered on rare set of DeKalb, TX quadruplet calves
Whether Meeny is a freemartin has yet to be confirmed, but with as much "masculine hormones" as she would have been exposed to from her ... «WSMV Nashville, 三月 15»
5 pairs of twin calves born on small Great Falls-area ranch
"A heifer born with a twin bull is called a 'freemartin' and about 95 percent of the time she is infertile," she said. "While in the uterus the twins are ... «The Missoulian, 三月 15»
Five pairs of twin calves born on small Montana ranch
"A heifer born with a twin bull is called a 'freemartin' and about 95 percent of the time she is infertile," she said. "While in the uterus the twins are ... «Great Falls Tribune, 三月 15»
Tips for a healthy calf crop
The calf most often orphaned is the freemartin heifer in the case of the heifer/bull twins. At preg checking good managers often keep one or two ... «Grainews, 二月 15»
Why is she open?
Sometimes the cow loses both, and sometimes just one. The producer may find only one calf, but if it's a heifer freemartin, you know there had ... «Canadian Cattlemen, 一月 15»
Professor Ray Owen: Scientist whose pioneering work on …
... are suggested by these observations,” not least among them the possible identification of the sterile female “freemartin” when twinned with a ... «The Independent, 十一月 14»
Muffet the cow defies the odds by birthing quadruplets after triplets …
The general rule-of-thumb there is that the girl, they call her a freemartin, she's more or less 95 per cent chance she'll be infertile," he said. «ABC Online, 八月 14»
Make a record of twins
A freemartin is genetically female, but has many characteristics of a male. The ovaries of the freemartin do not develop correctly, and they ... «Minnesota Farm Guide, 四月 14»
