منابع مشابه
On the Mechanism of Milk Secretion
The four types of experiments on milk secretion herein described really fall into one general class so far as the physiological effects produced are concerned. Starvation lowers the blood sugar and raises the osmotic pressure of the blood. The experiment using parathyroid hormone with or without starvation may have its effects interpreted as simply due to starvation since 1000 units of this hor...
متن کاملThe mechanism of secretion of the milk fat globule.
The morphology of secretion of the fat globule is identical in goat, guinea-pig and cow. The smallest fat droplets, which are found in the basal cytoplasm of the secretory cell, have no membrane separating the lipid from the cytoplasm and no direct association with rough endoplasmic reticulum. In the apex of the cell, fat droplets have numerous peripheral vesicles, most of which appear to be de...
متن کاملStudies on Milk Secretion
In this paper data are presented on cows receiving no food but having access to all of the water which they wished. The yield and composition of the milk were determined at various times during the periods of starvation. The composition of the milk showed changes which were progressive in the sense that they followed a definite course. They were characterized by a marked lowering in the amount ...
متن کاملMilk Secretion and Quality
The dairy industry is a large and dynamic segment of the agricultural economy of many nations. In 1999, cash receipts from marketing’s of milk exceeded $23 billion dollars in the United States. Consumption of dairy products continues to increase throughout the world. The widespread consumption of dairy products and well-publicized recent epidemics of animal disease (such as bovine spongiform en...
متن کاملthe effects of high non fibrous carbohydrates diet on milk production, inflammation and molecular mechanism of innate immunity in lactating dairy cows
پژوهش حاضر با هدف بررسی اثر جیره حاوی کربوهیدراتهای غیرالیافی زیاد و بروز التهاب در گاوهای شیرده در دو آزمایش جداگانه انجام شد. در آزمایش اول 20 رأس گاو مبتلا به ورم پستان از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) و 20 رأس گاو سالم از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) انتخاب شدند. همه گاوها در دوره دوم و یا سوم شیردهی و در روزهای 80-120 پس از زایش بودند. میانگین تولید شیر در گروه...
ذخیره 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: Nature
سال: 1950
ISSN: 0028-0836,1476-4687
DOI: 10.1038/166853a0