Results 31 to 40 of about 109,838 (252)

Do changes of pen and penmate affect the behaviour of heifers? [PDF]

open access: yes, 2003
We wanted to investigate if relocation affects behaviour of dairy heifers. In the study 32 Holstein heifers were housed in pairs until they were 13 months old. 16 heifers stayed in the same pen with the same penmate (control).
Andanson, S.   +4 more
core  

An empirical analysis of the cost of rearing dairy heifers from birth to first calving and the time taken to repay these costs [PDF]

open access: yes, 2017
Rearing quality dairy heifers is essential to maintain herds by replacing culled cows. Information on the key factors influencing the cost of rearing under different management systems is, however, limited and many farmers are unaware of their true costs.
A.C. Boulton   +24 more
core   +2 more sources

Genetic Parameters, Linear Associations, and Genome-Wide Association Study for Endotoxin-Induced Cortisol Response in Holstein heifers

open access: yesAnimals
Lipopolysaccharide (LPS) endotoxin is a well-characterized microbe-associated molecular pattern (MAMP) that forms the outer membrane of both pathogenic and commensal Gram-negative bacteria.
Bruno A. Galindo   +6 more
doaj   +1 more source

Descriptive, comparative, and functional anatomy of the facial musculature in cattle (Bos taurus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Facial expressions can provide insight into animal emotions and pain, but no standardized system for assessing the entire facial display in cattle (Bos taurus Linnaeus) exists. The Facial Action Coding System (FACS), originally developed for humans, identifies distinct facial movements based on mimetic muscles.
Maja Söderlind   +6 more
wiley   +1 more source

Performance and parasitosis in heifers grazing mixed with sows [PDF]

open access: yes, 2000
The aim of the study was to investigate the effect of mixed grazing with first season heifers and pregnant sows on animal performance, gastro-intestinal helminths, pasture quality and sward structure during three grazing seasons.
Danielsen, Viggo   +3 more
core  

Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope

open access: yesAnimal Research and One Health, EarlyView.
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad   +7 more
wiley   +1 more source

Nematode control in suckler beef cattle over their first two grazing seasons using a targeted selective treatment approach [PDF]

open access: yes, 2015
peer-reviewedBackground With concerns over the development of anthelmintic resistance in cattle nematode populations, we must re-examine our approach to nematode control in cattle.
Barrett, Damien   +6 more
core   +1 more source

Effect of increasing energy levels of diet and heat synchronization on steroid hormones and reproductive indices in Holstein heifers [PDF]

open access: yesĀsīb/shināsī-i Darmāngāhī-i Dāmpizishkī, 2013
The aim of the present study was to determine the effects of increasing energy levels of diet and heat synchronization on steroid hormones and fertility in Holstein heifers.
akbar pirestani   +3 more
doaj  

Understanding Interactions Between Sustainable Development Goals Within and Between Policy Programmes: The Case of Kenya's Dairy Sector

open access: yesSustainable Development, EarlyView.
ABSTRACT Achieving Agenda 2030 depends on addressing interactions between the sustainable development goals (SDGs). In this paper, we conceptualize SDG interactions as synergies or trade‐offs, incoming or outgoing, and internal or external, and analyze how SDG 2 (Zero Hunger) interacts with other SDGs within and across policy programmes that support ...
Annita Jepchirchir Kirwa   +3 more
wiley   +1 more source

Oral supplementation of medium-chain fatty acids during the dry period supports the neutrophil viability of peripartum dairy cows [PDF]

open access: yes, 2013
A randomised clinical trial was conducted to explore the effect of orally supplemented medium-chain fatty acids (MCFA) to heifers and cows starting 6-8 weeks prior to expected calving date on blood and milk polymorphonuclear neutrophilic leucocyte (PMNL)
De Vliegher, Sarne, Piepers, Sofie
core   +2 more sources

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