AIMC Topic: Lactation
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Effects of heat stress and dietary zinc source on performance and mammary epithelial integrity of lactating dairy cows.
Journal of dairy science
Dec 28, 2017
Dietary Zn and heat stress alter gut integrity in monogastric animals. However, effects of Zn on mammary epithelial integrity in heat-stressed lactating dairy cows have not been studied. Multiparous lactating Holstein cows (n = 72) were randomly assi...
Effect of 17β-estradiol on milk production, hormone secretion, and mammary gland gene expression in dairy cows.
Journal of dairy science
Dec 21, 2017
Estradiol inhibits milk production in dairy cows. The present study evaluated the effect of 17β-estradiol (E2) injections on prolactin (PRL) secretion and the mammary gland response to this hormone. Eight mid-lactation cows were used in a crossover d...
Fetuin-A: A negative acute-phase protein linked to adipose tissue function in periparturient dairy cows.
Journal of dairy science
Dec 21, 2017
Fetuin-A (FetA) is a free fatty acid transporter and an acute-phase protein that enhances cellular lipid uptake and lipogenesis. In nonruminants, FetA is involved in lipid-induced inflammation. Despite FetA importance in lipid metabolism and inflamma...
Effects of prepartum dietary cation-anion difference and source of vitamin D in dairy cows: Lactation performance and energy metabolism.
Journal of dairy science
Dec 21, 2017
The objectives of this experiment were to evaluate the effects of feeding diets with 2 dietary cation-anion difference (DCAD) levels and supplemented with either cholecalciferol (CH) or calcidiol (CA) during late gestation on lactation performance an...
Impact of subclinical mastitis on greenhouse gas emissions intensity and profitability of dairy cows in Norway.
Preventive veterinary medicine
Nov 27, 2017
Impaired animal health causes both productivity and profitability losses on dairy farms, resulting in inefficient use of inputs and increase in greenhouse gas (GHG) emissions produced per unit of product (i.e. emissions intensity). Here, we used subc...
About Our Knowledge Base: How Knowledge Development Informs Researchers and Readers.
Journal of human lactation : official journal of International Lactation Consultant Association
Nov 22, 2017
Robotic milking: Technology, farm design, and effects on work flow.
Journal of dairy science
Jul 12, 2017
Robotic milking reduces labor demands on dairy farms of all sizes and offers a more flexible lifestyle for farm families milking up to 250 cows. Because milking is voluntary, barn layouts that encourage low-stress access by providing adequate open sp...
Robotic milking: Feeding strategies and economic returns.
Journal of dairy science
Feb 16, 2017
Cows in herds equipped with conventional milking parlors follow a structured, consistent, and social milking and feeding routine. Furthermore, in most cases cows in conventional herds receive all their nutrients from a total mixed ration, whereas in ...
Fertility of lactating dairy cows treated with gonadotropin-releasing hormone at AI, 5 days after AI, or both, during summer heat stress.
Theriogenology
Dec 18, 2016
Objectives of this experiment were to evaluate pregnancy per AI (P/AI) and progesterone (P4) concentrations after AI of lactating dairy cows under heat stress conditions treated with 100 μg gonadotropin-releasing hormone (GnRH) at AI, 5 d after AI, o...
Effect of energy balance profiles on metabolic and reproductive response in Holstein and Swedish Red cows.
Theriogenology
Dec 18, 2016
This study examined the effect of two feeding levels during the antepartum and postpartum period on reproductive performance and blood metabolites (glucose, non-esterified fatty acids (NEFA), insulin) in primiparous Holstein and Swedish Red (SRB) cow...
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