Об этом курсе

100% онлайн

Начните сейчас и учитесь по собственному графику.

Гибкие сроки

Назначьте сроки сдачи в соответствии со своим графиком.

Начальный уровень

Прибл. 37 часа на выполнение

Предполагаемая нагрузка: 8 weeks of study; 4–5 hours/week...


Субтитры: Английский

100% онлайн

Начните сейчас и учитесь по собственному графику.

Гибкие сроки

Назначьте сроки сдачи в соответствии со своим графиком.

Начальный уровень

Прибл. 37 часа на выполнение

Предполагаемая нагрузка: 8 weeks of study; 4–5 hours/week...


Субтитры: Английский

Программа курса: что вы изучите

1 ч. на завершение

Course Orientation

The series of videos and readings provided here are aimed at introducing this course in Lactation Biology. Course organization is described. Requirements for participation in the course are summarized. And, opportunities for learners to engage in the course content, as well as with each other, are indicated. ...
2 видео ((всего 10 мин.)), 5 материалов для самостоятельного изучения, 2 тестов
2 видео
Lactation Word Cloud2мин
5 материала для самостоятельного изучения
Course Syllabus10мин
About the Discussion Forums1мин
Social Media5мин
Updating Your Profile5мин
Study Aid Activities Overview5мин
2 практического упражнения
Orientation Quiz5мин
Demographics Survey26мин
1 ч. на завершение

Module 1: Introduction to Lactation Biology

In this module, we will introduce some basic definitions of terms related to the biology of lactation, provide an overview of milk, and briefly introduce the phylogenetic organization and evolution of mammals. Learning the definitions will be important for establishing a baseline vocabulary that will help reduce confusion about topics presented in subsequent videos. Milk, a primary product of the lactation process, will be introduced in an effort to provide a foundation for later modules in which milk and milk composition are explored in greater depth. The series of videos about mammals collectively offer a brief overview of the wide spectrum of these animal species, as well as some thoughts on how lactation came to be an integral part of the reproductive strategy of those species....
8 видео ((всего 58 мин.)), 2 материалов для самостоятельного изучения, 2 тестов
8 видео
Definitions Part 27мин
An Overview of Milk5мин
How Much Milk?4мин
Milk Products6мин
Mammalian Evolution5мин
Why Lactate?9мин
2 материала для самостоятельного изучения
Module 1 Overview5мин
Optional: Study Aids5мин
2 практического упражнения
Lesson 1-1 Quiz10мин
Lesson 1-3 Quiz10мин
4 ч. на завершение

Module 2: Mammary Gland Structure

One of the most fundamental requirements for understanding any aspect of biology is to appreciate the relationships that exist between form and function, or anatomy and physiology. In the case of lactation and the mammary gland, it is important to be able to visualize the various levels of mammary gland structure in order to understand how the mammary gland grows and functions. This module presents an overview of mammary gland anatomy and macrostructure using the dairy cow as our primary example. In addition, the tissue, cellular, and subcellular levels of mammary structure are presented. The module provides a conceptual foundation that will allow you to individually explore mammary gland anatomy and microstructure in other mammalian species. ...
19 видео ((всего 130 мин.)), 2 материалов для самостоятельного изучения, 5 тестов
19 видео
Mammary Lobes6мин
Simple vs Complex Glands4мин
Mammary Anatomy at the Cow Side10мин
Mammary Suspensory System9мин
Median Suspensory Ligament2мин
Structure of Teats and Cisterns6мин
Supernumerary Teats4мин
Mammary Blood System10мин
Mammary Lymph System6мин
Mammary Nervous System3мин
Introduction to Mammary Microstructure6мин
Microstructure - 2D and 3D8мин
More on Lobules9мин
Alveoli and Their Environment7мин
Myoepithelial Cells5мин
Mammary Cell Ultrastructure Part 18мин
Mammary Cell Ultrastructure Part 25мин
2 материала для самостоятельного изучения
Module 2 Overview5мин
Optional: Study Aids5мин
5 практического упражнения
Lesson 2-1 Quiz10мин
Lesson 2-2 Quiz12мин
Lesson 2-3 Quiz10мин
Lesson 2-4 Quiz10мин
Week 1 Quiz30мин
5 ч. на завершение

Module 3: Milk Composition

Milk is the product of the lactation process. Such a simple statement does not come close to doing justice to the complex nature of this biological fluid. In this module, we explore the major components of milk, as well as provide a basis for understanding milk as a product that we purchase in a store. Mechanisms of synthesis of milk components are introduced. And, several videos include discussions of the nature of differences in milk composition among mammalian species, including comparisons of cow milk with human milk....
27 видео ((всего 178 мин.)), 2 материалов для самостоятельного изучения, 7 тестов
27 видео
Milk Components Demo2мин
Perspectives on Milk Composition7мин
Milk Under the Microscope5мин
Major Milk Fractions5мин
From Cow to Store10мин
Total Solids4мин
Lactose Intolerance4мин
Lactose Synthesis8мин
Milk Protein4мин
Casein Demo5мин
Whey Proteins9мин
Milk Protein Synthesis8мин
Milk Fat4мин
Fatty Acids6мин
Milk Fat - Species Comparisons5мин
Milk Fat Synthesis15мин
Milk Minerals10мин
Milk Vitamins2мин
Cells in Milk6мин
More on Milk Cells1мин
Milk Bioactive Factors8мин
Species Comparisons of Milk7мин
Cow vs. Human Milk Composition5мин
Wrapping Up Milk Composition4мин
2 материала для самостоятельного изучения
Module 3 Overview5мин
Optional: Study Aid5мин
7 практического упражнения
Lesson 3-1 Quiz10мин
Lesson 3-2 Quiz10мин
Lesson 3-3 Quiz10мин
Lesson 3-4 Quiz10мин
Lesson 3-5 Quiz10мин
Lesson 3-6 Quiz10мин
Week 2 Quiz30мин
3 ч. на завершение

Module 4: Mammary Gland Development

The tissue that we know of as the mammary gland (or udder or breast) may appear as relatively uncomplicated compared with some internal organs such as the heart or brain. The gland is outside the body wall, has a nipple or teat in most species, and has a series of ducts by which milk that is produced in microscopic blind tubes can be expressed from the gland. How can such a gland develop and what regulates that development? It turns out that the initial stage of development occurs extremely early in the fetal development of the animal. It then proceeds through a series of developmental phases, many of which are closely linked with the reproductive functioning of the animal, and eventually leading to the time when the gland is producing milk. Furthermore, the mammary gland is one of a few tissues that undergoes repeated cycles of development, functioning, regression, and redevelopment, again associated with the reproductive cycles of the animal. This module describes the various stages of mammary development and provides the framework for understanding how these stages relate to each other, as well as to the functionality of the gland....
11 видео ((всего 79 мин.)), 2 материалов для самостоятельного изучения, 4 тестов
11 видео
Fetal Stage - 26мин
Fetal Stage - 36мин
Prepubertal Stage - 17мин
Prepubertal Stage - 23мин
Postpubertal Stage7мин
Development During Pregnancy - 12мин
Development During Pregnancy - 26мин
Development During Pregnancy - 35мин
Bovine Mammary Development13мин
2 материала для самостоятельного изучения
Module 4 Overview5мин
Optional: Study Aid5мин
4 практического упражнения
Lesson 4-1 Quiz10мин
Lesson 4-2 Quiz10мин
Lesson 4-3 Quiz10мин
Week 3 Quiz30мин
5 ч. на завершение

Module 5: Mother & Neonate

The peripartum period, the time shortly before, during, and after giving birth, is a time of rapid changes in the mammary gland, the mother, and the neonate. Extensive physiological coordination occurs between the processes leading up to and giving birth, the formation of colostrum, the initiation of lactation in the mammary gland, and the subsequent removal of milk by the neonate. In this module, we explore how the mammary gland changes around the time of giving birth when the gland transitions from a non-lactating to a lactating state. Part of this transition is the production of colostrum, the first mammary secretion produced by the gland after giving birth. Another part of the transition is the changing regulation of mammary gland function from one being driven primarily by hormones associated with pregnancy and parturition to one where milk removal, by the neonate or milking machine, is the driving force in gland function after birth. In this module, we examine some basic characteristics of the neonate, how lactation is initiated (lactogenesis), and the formation and special components of colostrum (immunoglobulins) and their impact on the neonate....
17 видео ((всего 124 мин.)), 2 материалов для самостоятельного изучения, 7 тестов
17 видео
A Cow Calving3мин
The Neonate8мин
Lactogenesis & Its Stages7мин
Secretory Differentiation8мин
Secretory Activation & Lactose Synthesis7мин
Hormonal Regulation5мин
Comparative Hormonal Regulation7мин
Prolactin - Sources4мин
Prolactin - Control of Secretion5мин
Prolactin - Other Regulation5мин
Colostrum Composition12мин
Immunoglobulins in Colostrum6мин
Colostrum & the Neonate10мин
Immunoglobulin Receptor6мин
Mammary Transport of Immunoglobulin7мин
Immunoglobulin Transport to the Neonate6мин
2 материала для самостоятельного изучения
Module 5 Overview5мин
Optional: Study Aid5мин
6 практического упражнения
Lesson 5-1 Quiz10мин
Lesson 5-2 Quiz10мин
Lesson 5-3 Quiz10мин
Lesson 5-4 Quiz10мин
Lesson 5-5 Quiz10мин
Week 4 Quiz30мин
5 ч. на завершение

Module 6: Lactation

In this module, we explore the many facets of lactation as a complex physiological process. We will find that removal of the milk in the gland is critical to continued production of that fluid. The interactions between milk removal, the systemic factors stimulating the gland to produce milk, such as several hormones, and the local factors that inhibit further milk secretion are examined. Some of the effects of milk removal, as well as the absence of milk removal, are discussed in this series of videos. The responses of the mammary gland to milk removal provide a means of understanding the impact of management practices on lactation. ...
27 видео ((всего 214 мин.)), 2 материалов для самостоятельного изучения, 5 тестов
27 видео
Systemic vs Local Regulation10мин
Measurement of Milk Production7мин
Prolactin - Nonruminants9мин
Prolactin - Ruminants 16мин
Prolactin - Ruminants 29мин
Growth Hormone - Cows8мин
Growth Hormone - Rats10мин
Other Hormones9мин
Feedback Inhibition of Milk Secretion10мин
Frequency of Milk Removal5мин
Cisternal vs Alveolar Milk Pools7мин
Frequency of Milk Removal - Cows6мин
Determinants of Milk Yield6мин
Intensity of Milk Removal9мин
Milk Stasis4мин
Mammary Secretions During Involution10мин
Mammary Tissue During Involution8мин
Dry Period9мин
Persistency & Relactation10мин
Mammary Involution - Sows9мин
Compensatory Milk Production9мин
Lactational History - Cows3мин
Lactational History - Sows5мин
Lactational History - Rats6мин
2 материала для самостоятельного изучения
Module 6 Overview5мин
Optional: Study Aid5мин
5 практического упражнения
Lesson 6-1 Quiz10мин
Lesson 6-2 Quiz10мин
Lesson 6-3 Quiz10мин
Lesson 6-4 Quiz10мин
Week 5 Quiz30мин
2 ч. на завершение

Module 7: Milk Ejection

This module introduces the physiological process known as the milk ejection reflex. The neural and endocrine pathways of this process are discussed, as is a broad overview of the hormone responsible for milk ejection, oxytocin. In addition, the consequences of ineffective milk ejection and ways that have been tried to manipulate the milk ejection process are presented. ...
15 видео ((всего 95 мин.)), 2 материалов для самостоятельного изучения, 3 тестов
15 видео
Neuroendocrine Reflex5мин
Timing of Milk Ejection4мин
Rise in Intramammary Pressure3мин
Mammary Structure Changes During Ejection4мин
Microstucture of Milk Ejection2мин
Sources of Oxytocin10мин
Other Functions of Oxytocin4мин
Residual Milk8мин
Disturbed Milk Flow9мин
Manipulation of Milk Ejection6мин
Inhibition of Milk Ejection6мин
Species Comparisons9мин
Milk Ejection Demo - Optional7мин
2 материала для самостоятельного изучения
Module 7 Overview5мин
Optional: Study Aid5мин
3 практического упражнения
Lesson 7-1 Quiz10мин
Lesson 7-2 Quiz10мин
Lesson 7-3 Quiz10мин
3 ч. на завершение

Module 8: Atypical Lactation

We typically assume that development of the mammary gland and production of milk are closely regulated by and are coordinated with the reproductive functioning of the animal. Most often that is true. From the knowledge gained from other modules in this course, it is clear that mammary gland development and lactogenesis are heavily regulated by hormones. As it turns out, the presence of mammary gland-regulating hormones is not always directly associated with the reproductive status of the animal. If the hormone activity is present, regardless of its source, it may impact mammary gland development and function. The series of videos in this module presents an overview of what we are calling atypical lactation. That is when the mammary gland undergoes development and lactation in the absence of the usual physiological cues that we associate with the process, such as an animal giving birth....
7 видео ((всего 74 мин.)), 2 материалов для самостоятельного изучения, 3 тестов
7 видео
Elevated Prolactin14мин
Relactation, Allosucking, Communal Nursing12мин
Lactation in Males15мин
2 материала для самостоятельного изучения
Module 8 Overview5мин
Optional: Study Aid5мин
2 практического упражнения
Lesson 8-1 Quiz10мин
Week 6 Quiz30мин
6 ч. на завершение

Module 9: Mastitis

The mammary gland is an excretory gland, meaning that it produces a fluid that is secreted to the outside of the body. These secretions leave the gland through a series of ducts that eventually open to the outside of the skin. The presence of these openings not only means that the mammary secretion can leave the gland, it also means that microorganisms can enter the gland. When that happens, the gland may become infected and present as a disease known as mastitis. Mastitis is an inflammation of the mammary gland, the inflammation most commonly being caused by an infection by a pathogen. Mastitis is the most costly disease in dairy cattle, but is also prevalent in other species, including our own. We will examine many of the aspects of how this disease is manifested using the dairy cow as our primary example in this module. We will examine mastitis at the level of an individual cow, as well as at the whole herd level. And then to fully integrate and apply the knowledge gained about this disease, we will examine several real-life cases of herd-level mastitis problems faced by dairy producers....
19 видео ((всего 189 мин.)), 3 материалов для самостоятельного изучения, 6 тестов
19 видео
Milk Components5мин
First Line of Defense6мин
Inflammatory Response11мин
Treatment & Control8мин
Mastitis Syndromes11мин
Mastitis Types7мин
Contagious Pathogens7мин
Environmental Pathogens6мин
Other Pathogens5мин
Mastitis at a Herd-Level8мин
Contagious vs Environmental5мин
Milking Procedure9мин
Mastitis Example Case 120мин
Mastitis Example Case 224мин
Mastitis Example Case 319мин
3 материала для самостоятельного изучения
Module 9 Overview5мин
Optional: Study Aid5мин
Mastitis Cases Answers5мин
5 практического упражнения
Lesson 9-1 Quiz10мин
Lesson 9-2 Quiz10мин
Lesson 9-3 Quiz10мин
Lesson 9-4 Quiz10мин
Week 7 Quiz30мин
4 ч. на завершение

Module 10: Comparative Lactation

In this module, we provide a series of videos that expands what has already been learned in other modules about the basic principles of lactation biology to a range of mammalian species. These videos focus on these animals in their native state, as well as some that have been domesticated for use as dairy animals and domestic livestock. This module is optional....
21 видео ((всего 188 мин.)), 2 материалов для самостоятельного изучения, 1 тест
21 видео
Swine Lactation: Mammary Anatomy & Development10мин
Swine Lactation: Milk Composition7мин
Swine Lactation: Lactogenesis & Early Lactation11мин
Swine Lactation: Milk Production7мин
Swine Lactation: Milk Removal & Sucking Intensity8мин
Swine Lactation: Milk Ejection9мин
Swine Lactation: Mammary Involution8мин
Swine Lactation: Prolactin & Lactation14мин
Swine Lactation: Lactational History11мин
Swine Lactation: Mastitis 19мин
Swine Lactation: Mastitis 210мин
Swine Lactation: Mastitis 36мин
Elephant Lactation 111мин
Elephant Lactation 210мин
Dairy Goats: Farm Introduction7мин
Dairy Goats: The Kids5мин
Dairy Goats: The Does2мин
Dairy Goats: Milking Parlor and Procedures5мин
Dairy Goats: Cheese Introduction7мин
Dairy Goats: Making Cheese11мин
2 материала для самостоятельного изучения
Module 10 Overview5мин
Solutions to Crossword Puzzles10мин
1 практическое упражнение
End of Course Survey52мин
Рецензии: 4Chevron Right


получил значимые преимущества в карьере благодаря этому курсу


стал больше зарабатывать или получил повышение

Лучшие рецензии

автор: MTMar 1st 2019

was great course would love to see a little more of human lactation in here to compare with. i enjoyed the corse just getting grading was slow.



Dr. Walter Hurley, PhD

Professor Emeritus
Department of Animal Sciences

О Иллинойсский университет в Урбане-Шампейне

The University of Illinois at Urbana-Champaign is a world leader in research, teaching and public engagement, distinguished by the breadth of its programs, broad academic excellence, and internationally renowned faculty and alumni. Illinois serves the world by creating knowledge, preparing students for lives of impact, and finding solutions to critical societal needs. ...

Часто задаваемые вопросы

  • Зарегистрировавшись на сертификацию, вы получите доступ ко всем видео, тестам и заданиям по программированию (если они предусмотрены). Задания по взаимной оценке сокурсниками можно сдавать и проверять только после начала сессии. Если вы проходите курс без оплаты, некоторые задания могут быть недоступны.

  • Оплатив сертификацию, вы получите доступ ко всем материалам курса, включая оцениваемые задания. После успешного прохождения курса на странице ваших достижений появится электронный сертификат. Оттуда его можно распечатать или прикрепить к профилю LinkedIn. Просто ознакомиться с содержанием курса можно бесплатно.

Остались вопросы? Посетите Центр поддержки учащихся.