Results 131 to 140 of about 4,714,251 (292)

Identification of phenotypic predictors of milk yield losses in response to once-daily milking

open access: yes, 2013
Extended milking intervals can reduce milk yield but this response is highly variable among cows. Identifying cows with the low milk yield loss associated with milking interval is difficult, restricting the development of milking practices such as once-daily milking.
Guinard-Flament, Jocelyne   +2 more
openaire   +2 more sources

Influence of Barn Climate, Body Postures and Milk Yield on the Respiration Rate of Dairy Cows [PDF]

open access: yes, 2019
The main objective of this study was to identify the influences of different climatic conditions and cow-related factors on the respiration rate (RR) of lactating dairy cows. Measurements were performed on 84 lactating Holstein Friesian dairy cows (first
Ammon, Christian   +15 more
core   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

Trends in Heritability of Daily Milk Yield by Periods in Korean Cattle

open access: yesAsian-Australasian Journal of Animal Sciences, 2003
Korean cattle breeders have shown interest in genetic improvement of milking ability because poor milking ability and short suckling period of Korean cattle is a hindrance to growth of calves. In this study, daily milk yields by period in Korean cattle were analyzed with an animal model.
J. G. Choi   +5 more
openaire   +1 more source

CNTN2 Deficiency Disrupts Ascending Auditory Neuroglial Interactions and Redox Homeostasis in Neural Presbycusis

open access: yesAdvanced Science, EarlyView.
. ABSTRACT Neural presbycusis disrupts auditory timing and speech perception, yet its molecular basis remains poorly understood. This study identifies Cntn2 as the Ranvier's nodal molecule significantly downregulated in aged auditory nerves. Cntn2 heterozygous knockout (Cntn2+/−) mice showed elevated auditory brainstem response thresholds and prolonged
Penghui Chen   +8 more
wiley   +1 more source

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

open access: yesAdvanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong   +24 more
wiley   +1 more source

Effects of calf sex, breed and parity on the lactation performance of dairy cows in Trinidad and Tobago

open access: yesDiscover Agriculture
Dairy farming is important for food and nutrition security and livelihood protection in most tropical countries. However, productivity of dairy cows is affected by many factors and is usually low on smallholder farms in tropical environments.
Erica Auguste   +2 more
doaj   +1 more source

Associations Between Milk Composition, Blood Metabolomics, and Systemic Physiological Indices in High- vs. Low-Yielding Guanzhong Dairy Goats During Early Lactation

open access: yesVeterinary Sciences
This study aimed to elucidate the intrinsic regulatory mechanisms by comparing milk quality, blood metabolomics, and physiological indices between high-yielding (BH, n = 15, high milk yield, daily milk yield with 4.08 ± 0.17 kg) and low-yielding (BL, n =
Ziqi Meng   +6 more
doaj   +1 more source

Microglial Deubiquitinase OTUD7B Stabilizes STAT3 to Promote Neuroinflammation and Cognitive Decline in Alzheimer's Disease

open access: yesAdvanced Science, EarlyView.
. ABSTRACT Neuroinflammation driven by microglial activation is a defining feature of Alzheimer's disease (AD), yet the molecular mechanisms sustaining this proinflammatory state remain unclear. Here, we identify the deubiquitinase OTUD7B as a critical regulator of microglial activation and AD pathology.
Luyao Li   +15 more
wiley   +1 more source

Genetic and phenotypic relationships among endocrine and traditional fertility traits and production traits in Holstein-Friesian dairy cows [PDF]

open access: yes, 2002
The objective of this study was to estimate the heritability of a number of traditional and endocrine fertility traits in addition to d-56 predicted milk yield (MY56), and the genetic and phenotypic correlations between these traits.
Royal, M.D.   +2 more
core  

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