Results 81 to 90 of about 8,117 (249)

Effect of weaning age on cortisol release in piglets

Genetics and Molecular Research, 2016
The effect of weaning age on the adrenal cortex, which plays a vital role in the stress response, is currently unknown. Therefore, plasma adrenocorticotropic hormone (ACTH) and cortisol levels, weights and relative weights of adrenal glands, and steroidogenesis-related protein and enzyme expression levels in piglets weaned on different days were ...
L A, Li, J J, Yang, Y, Li, L, Lv, J J, Xie, G M, Du, T M, Jin, S Y, Qin, X L, Jiao   +8 more
openaire   +2 more sources

Genetic Parameters and Genome‐Wide Association Studies for Fertility and Reproduction Traits in U.S. Katahdin Sheep Based on the Single‐Step GBLUP Methodology

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Sheep production contributes to a secure and diverse food and fibre supply in the United States, with growing ethnic diversity strengthening demand. Katahdin is a composite hair‐type sheep breed developed in the United States that has become the most popular breed in many regions of the country and the first one to have genomic selection ...
Alejandra Toro Ospina, Ronald M. Lewis, Bradley A. Freking, Joan M. Burke, Thomas W. Murphy, Carrie S. Wilson, Luiz F. Brito   +6 more
wiley   +1 more source

Evaluating the Predictive Value of Estimated Breeding Values of Piétrain Sires for Uniformity and Survival in Their Crossbred Progeny

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT High litter sizes in pigs are associated with lower birth weights and increased within‐litter variation, which poses challenges to pig farming. Improving piglet uniformity and survival via genetic selection of terminal boars could be a strategy to enhance these traits.
Katrijn Hooyberghs, Sophie Goethals, Roel Meyermans, Léa Chapard, Jaro De Kort, Inne Patteet, Sam Millet, Steven Janssens, Nadine Buys, Wim Gorssen   +9 more
wiley   +1 more source

Effects of Precision Feeding on Economic and Productive Yields of Hyperprolific Lactating Sows Allocated at Different Farrowing Pens

Animals
The results obtained using precision feeding in maternities (electronic sow feeders, ESFs) may be affected by the type of farrowing pen, as the design of the pen may modify the behavior of the sows.
María Aparicio-Arnay, Natalia Yeste-Vizcaíno, Nerea Soria, Jorge Cambra, Beatriz Isabel, Carlos Piñeiro, Antonio Gonzalez-Bulnes   +6 more
doaj   +1 more source

How Does the Pre-weaning Environment Affect Gut Structure and Function, and Lifetime Performance of the Pig?

, 2009
The reduction in feed intake and growth rate that occurs following weaning is of major economic consequence to the pig industry. Currently, a range of antimicrobial products can be used to minimise the impact of weaning on piglet health and subsequent ...
Payne, Hugh
core  

Characteristics of biter and victim piglets apparent before a tail biting outbreak

, 2011
Little is known about the characteristics of biters and victims before the appearance of a tail-biting outbreak in groups of pigs. This study aimed to characterise biters and victims (according to gender and performance) and to quantify their behavioural
Kemp, B., Schepers, F., Spoolder, H.A.M., Zonderland, J.J., Bracke, M.B.M., Hartog, L.A., den   +5 more
core   +1 more source

Optimizing Production of Two Potential Probiotic Lactobacilli Strains Isolated from Piglet Feces as Feed Additives for Weaned Piglets [PDF]

, 2015
Two probiotic strains, Lactobacillus johnsonii x-1d-2 and Lactobacillus mucosae x-4w-1, originally isolated from piglet feces, have been demonstrated to possess antimicrobial activities, antibiotic resistances and interleukin-6 induction ability in RAW ...
Ming-Ju Chen, Ming-Lun Chiang, Hsi-Chia Chen, Yu-Chun Lin, Ya-Ting Lin, Kun-Nan Chen   +5 more
core   +1 more source

Histological analysis of incremental markings and crown growth characteristics in mandibular first molars of the red fox, Vulpes vulpes (Canidae, Mammalia)

Journal of Anatomy, EarlyView.
This paper histologically analyzed incremental markings in dental enamel of red fox and grey wolf. Our results demonstrate that previous studies have misidentified these markings, which led to miscalculation of dental growth parameters. Abstract The present study analyzed incremental markings in the enamel of eight mandibular first molars (M1) of red ...
Horst Kierdorf, Uwe Kierdorf
wiley   +1 more source

Morphofunctional effects of captivity on the microanatomy of the talus bone in a wild ungulate (Sus scrofa)

Journal of Anatomy, EarlyView.
Our study explores the plastic changes induced by captivity on the microanatomy of the talus of wild boars, revealing denser bone with tighter trabecular networks but a lower relative maximum thickness of compact bone. These plastic adaptations can serve to detect early processes of domestication in the archaeological record.
Roman Ocaña, Thomas Cucchi, Camille Bader, Alexandra Houssaye   +3 more
wiley   +1 more source

Correlation between reproductive performance and sow body weight change during gestation

Journal of Animal Science and Technology
This study investigated the correlation between piglet performance and sow body weight change (BWC) during two gestational periods: 35–70, 70–105, and 35–105 days.
Sang Hun Ha, Yo Han Choi, Jun Young Mun, Se Rin Park, Elick Kinara, Hyun Ju Park, Jun Seon Hong, Yong Min Kim, Jin Soo Kim   +8 more
doaj   +1 more source