相关实验视频
Updated: May 1, 2026

07:34
Milk Collection Methods for Mice and Reeves' Muntjac Deer
Published on: July 19, 2014
19.8K
哺乳期的德州驴的牛奶成分和血液参数随着哺乳期的变化而变化
Miaomiao Zhou1, Zongjie Ma1, Xinyi Du1
1College of Agriculture and Biology, Liaocheng Research Institute of Donkey High-Efficiency Breeding and Ecological Feeding, Liaocheng University, Liaocheng, China.
Veterinary medicine and science
|March 4, 2025
概括
驴奶的成分和血液参数在哺乳期间发生显著变化. 早期的哺乳期显示出更高的牛奶脂肪,蛋白质和某些血液标记物,而晚期的哺乳期则有更多的乳糖,影响营养价值.
科学领域:
- 动物科学动物科学
- 乳制品科学 乳制品科学
- 生物化学 生物化学
背景情况:
- 哺乳期的阶段显著影响哺乳动物的牛奶产量和成分.
- 了解德州驴的这些变化对于评估它们的牛奶的营养价值至关重要.
研究的目的:
- 为了研究整个哺乳期内德州驴的牛奶成分和血液参数的动态变化.
- 建立牛奶产量,牛奶成分和血液生物化学指标之间的相关性.
主要方法:
- 在多个时间点 (1-180天) 收集了六只哺乳期德州驴的牛奶和血清样本.
- 分析了牛奶产量,牛奶成分 (脂肪,蛋白质,乳糖,固体,SNF,矿物质) 和血清参数 (激素,蛋白质,脂质,酶,葡萄糖).
- 进行相关性分析以确定变量之间的关系.
主要成果:
- 产后30-60天的牛奶产量达到峰值.
- 早期哺乳期的牛奶含有更多的脂肪,蛋白质和固体,而晚期哺乳期的牛奶含有更高的乳糖.
- 随着长时间的哺乳期,矿物质含量下降;在早期的哺乳期,血中诸如益乳素和IGF-1等参数较高.
- 在牛奶产量和荷尔蒙/酶之间,以及牛奶成分和各种血液生物化学物质之间发现了显著的正相关性.
结论:
- 哺乳期深深影响了州驴的牛奶产量,成分和相关的血液参数.
- 这些发现为探索驴奶的营养价值和优化驴奶的利用提供了基础数据.
- 这项研究为驴母乳养期间的生理适应提供了新的见解.
相关概念视频
Tonicity in Animals
111.5K
The tonicity of a solution determines if a cell gains or loses water in that solution. The tonicity depends on the permeability of the cell membrane for different solutes and the concentration of nonpenetrating solutes in the solution within and outside of the cell. If a semipermeable membrane hinders the passage of some solutes but allows water to follow its concentration gradient, water moves from the side with low osmolarity (i.e., less solute) to the side with higher osmolarity (i.e.,...
111.5K
Tonicity in Animals
9.0K
Tonicity describes the amount of solute in a solution. The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three terms—hypotonic, isotonic, and hypertonic—are used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. In a hypotonic solution, such as tap water, the extracellular fluid has a lower concentration of solutes than the fluid inside...
9.0K
The Mammary Glands
3.2K
The female breast is a hemispheric projection of variable size positioned anterior to the pectoralis major and serratus anterior muscles. A fascia layer composed of dense, irregular connective tissue connects it to these muscles.
Each breast features a pigmented projection known as the nipple, through which milk emerges via closely spaced openings of ducts, referred to as lactiferous ducts. Surrounding the nipple is a circular pigmented area of skin named the areola, which appears rough due to...
Each breast features a pigmented projection known as the nipple, through which milk emerges via closely spaced openings of ducts, referred to as lactiferous ducts. Surrounding the nipple is a circular pigmented area of skin named the areola, which appears rough due to...
3.2K
Blood Studies I: ABG and VBG
1.6K
Blood studies are critical in the medical field, enabling healthcare professionals to assess a patient's health status accurately. This page will focus on two significant blood studies: Arterial Blood Gas (ABG) and Venous Blood Gas (VBG).
Arterial Blood Gas (ABG)
Arterial Blood Gas (ABG) studies are crucial for assessing the lungs' ability to supply oxygen and remove carbon dioxide, reflecting the patient's ventilation status. They also help understand the kidneys' capacity to...
Arterial Blood Gas (ABG)
Arterial Blood Gas (ABG) studies are crucial for assessing the lungs' ability to supply oxygen and remove carbon dioxide, reflecting the patient's ventilation status. They also help understand the kidneys' capacity to...
1.6K
Development of Human Microbiota
61
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...
61
Development of the Oral Microbiota
65
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
65

