Results 91 to 100 of about 72,524 (279)

Nitric oxide concentrations in mammary quarters during heifer mastitis*

open access: yesAnimal, 2013
The aim of this study was to evaluate nitric oxide (NOx) concentration in infected and non-infected mammary quarters of dairy heifers before and after calving.
A. Bastan   +7 more
doaj   +1 more source

Effect of insemination-related factors on pregnancy rate using sexed semen in Holstein heifers [PDF]

open access: gold, 2016
J. Kurykin   +6 more
openalex   +1 more source

The Impact of Water Hyacinth on the Welfare of Fishing Communities: Evidence From Lake Tana Fisheries, Ethiopia

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Water hyacinth (hereafter, WH) is known as ‘the green devil' and becomes a threat to the fishing community whose livelihood solely relies on fishing activities. Although there are immense assessment studies related to WH, the real causal impact of this invasive weed on the fishing community has not yet been properly quantified. In filling this
Erkie Asmare, Yibeltal Aragaw
wiley   +1 more source

A CACNA2D2‐Related Recessive Form of Cerebellar Abiotrophy in Angus Cattle

open access: yesAnimal Genetics, Volume 57, Issue 2, April 2026.
ABSTRACT Cerebellar disease in ruminants is often virus‐induced and non‐genetic, but there are also rare inherited forms of cerebellar hypoplasia and cerebellar abiotrophy (CA). So far, no causal variant has been reported for these conditions in cattle. Two inbred Angus calves suspected of having cerebellar disease were reported in Scotland.
Joana Jacinto   +9 more
wiley   +1 more source

Wolf Presence Disrupts Seasonal Variation in Hair Cortisol Among Free‐Ranging Beef Cattle

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Predators exert indirect effects on prey populations beyond direct predation, but how predator reintroduction restructures prey physiology remains poorly understood. Using hair cortisol analysis in cattle exposed versus unexposed to wolves, we found that wolf presence disrupted normal seasonal cortisol regulation patterns.
Christina M. Nord   +6 more
wiley   +1 more source

Genetic Parameters and Correlations for Dairy Weaning, 200‐, 400‐, and 600‐ Day Weights in Beef and Beef‐On‐Dairy Progeny Tested Calves

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
The expansion of the New Zealand dairy industry has increased the number of lower‐value surplus calves. A value‐add mitigation strategy is integrating them into the beef market. This study investigated the genetic association between growth traits recorded in the Beef + Lamb New Zealand's Dairy‐Beef and the Beef Progeny Test to estimate the genetic ...
Connie E. McFarlane   +4 more
wiley   +1 more source

Congenital double cervix abnormality in a heifer [PDF]

open access: yesEurasian Journal of Veterinary Sciences
In this report, a case of double cervix which is congenital anotomical defect of the female reproductive tract was described in a Brown Swiss heifer. The caudal portion of cervical canal bifurcated although ovarium, oviduct, comu uteri and corpus uteri ...
Mustafa Sönmez, Murat Yüksel
doaj  

The Rumen and Gastrointestinal Microbial Environment and Its Association with Feed Efficiency and Pregnancy in Female Beef Cattle

open access: yesApplied Microbiology
With the anticipated population growth by 2050, the demand for high-quality protein for human consumption is set to rise. To enhance the sustainability of U.S.
M. Gabbi Martin   +4 more
doaj   +1 more source

Post-weaning feeding levels on feeding behavior, growth and development in Holstein dairy heifers

open access: yesCiência Rural, 2018
: To study the effect of post-weaning feeding levels on the growth of dairy heifers, 40 animals with 77.7 ± 8.1 days of age and 77.5 ± 9.2kg of body weight were grouped in 10 pens, and each pen was randomly assigned to one of the following treatments for
Emanuel De La Quintana   +4 more
doaj   +1 more source

The Effect of Alternative Sheep–Beef Enterprise Mixes on Farm Productivity, Profitability and Predicted Enteric Methane Emissions in North Island Hill Country Farms

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Sheep or beef cattle (cattle) share of total farm feed consumed, measured in stock units (SU) on New Zealand farms, is often adjusted depending on the profitability of each enterprise. The impact of these adjustments on whole‐farm productivity, profitability and predicted methane (CH4) output has not been recently explored. A system dynamics model of a
Joseph A. Adjabui   +5 more
wiley   +1 more source

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