Early rather than late scrotal circumference measurements better reflect female precocity in beef cattle
نویسندگان
چکیده
منابع مشابه
Genetic relationships between scrotal circumference and female reproductive traits.
Records for yearling scrotal circumference (SC; n = 7,580), age at puberty in heifers (AP; n = 5,292), age at first calving (AFC; n = 4,835), and pregnancy, calving, or weaning status following the first breeding season (PR1, CR1, or WR1, respectively; n = 7,003) from 12 Bos taurus breeds collected at the Meat Animal Research Center (USDA) between 1978 and 1991 were used to estimate genetic par...
متن کاملBetter Late Than Never
Some Prolog systems are able to delay the execution of Prolog goals and resume it later. We were involved in the design, implementation and evaluation of several such systems and we summarise here our experiences with them. First we describe a general structure of such ’coroutining’ systems and then we concentrate on the particular features of and choices made in three ECRC’s logic programming ...
متن کاملBetter late than never?
Although additional validation studies are needed, the data suggest that knowledge of circulating miRNAs such as miR-155 may someday be used to predict which patients with MBL go on to develop overt CLL. Importantly, the investigators looked at several types of specimens, including CLL cells and plasma from patients with CLL. Plasma miR-155 was as effective a biomarker as miR-155 isolated from ...
متن کاملReaction times can reflect habits rather than computations
Reaction times (RTs) are assumed to reflect the underlying computations required for making decisions and preparing actions. Recent work, however, has shown that movements can be initiated earlier than typically expressed without affecting performance; hence, the RT may be modulated by factors other than computation time. Consistent with that view, we demonstrated that RTs are influenced by pri...
متن کاملPay respect to the elders: age, more than body mass, determines dominance in female beef cattle
0003-3472 2013 The Authors. Published on behalf http://dx.doi.org/10.1016/j.anbehav.2013.10.002 Dominance hierarchies in groups of social animals can be based either on asymmetries that are important for agonistic interactions (such as body mass) or on more ‘conventional’ cues (such as age), which are respected despite having little relationship to the animal’s fighting abilities. We investigat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Livestock Science
سال: 2018
ISSN: 1871-1413
DOI: 10.1016/j.livsci.2018.10.019