Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Mark Knauer"'
Publikováno v:
Applied Engineering in Agriculture. 38:351-359
HighlightsFirst study to evaluate evaporative cool cell pad impacts on finishing pig performance in commercial barnsThe cool cell pad reduced air temperature from 31.5°C by 3.9°C with a cooling efficiency of 52%Cool cell pads improved pig well-bein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d374f17494e1c9688959e252b72d9c3
https://doi.org/10.13031/aea.14810
https://doi.org/10.13031/aea.14810
Publikováno v:
Journal of Animal Science. 101:10-11
The objective was to evaluate the impact of sow location, within farrowing room, on reproduction during periods of heat stress. Data were collected on 1,866 sows at a 3,600-sow commercial farm in eastern North Carolina from May to August 2021. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::458fbd9052f97198279ba3be1c5359bb
https://doi.org/10.1093/jas/skad068.013
https://doi.org/10.1093/jas/skad068.013
Publikováno v:
Journal of Animal Science. 101:8-9
Heat stress has negative impacts on pork production, particularly during the grow-finish phase. During heat stress events, swine alter feeding behavior to reduce heat production, which can negatively affect performance. Recent technology advancements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abb9e136eb57e871ace751117b367861
https://doi.org/10.1093/jas/skad068.010
https://doi.org/10.1093/jas/skad068.010
Publikováno v:
Journal of Animal Science. 101:116-117
Pig manure contains a wide variety of corrosion-inducing chemicals such as ammonia. Ammonia production and its release are influenced by temperature and moisture in the barn environment. Increased concentrations of ammonia can negatively affect pig h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2231945abcb201ee0805b835e8b789d
https://doi.org/10.1093/jas/skad068.139
https://doi.org/10.1093/jas/skad068.139
Autor:
Mark Knauer, Terry Armstrong, Brandon Barnes, Austin Jones, Bo Mobley, Tyler O'Dell, Lee Tyre, Matthew Wynn
Publikováno v:
J Anim Sci
The objective was to evaluate factors associated with nursery throughput. Data consisted of 3,260 piglets from 320 litters at the NCDA Tidewater Research Station. At weaning, piglets were housed nine per pen (0.23m2 per pig) in onsite nursery facilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e2e9f10530d7c4a8eb30cb7ec9017cd
https://europepmc.org/articles/PMC9003940/
https://europepmc.org/articles/PMC9003940/
Autor:
Mark Knauer
Publikováno v:
Journal of Animal Science. 100:8-9
Multiple tools are currently available to effectively evaluate gilt and sow body condition. Both A-mode and B-mode ultrasound technology can provide accurate measures of backfat while B-mode ultrasound can deliver precise measures of loin eye area or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89afdd13e6ab2608ecef7bcc6d7d4442
https://doi.org/10.1093/jas/skac064.011
https://doi.org/10.1093/jas/skac064.011
Autor:
Mark Knauer, Chris van de Ligt
Publikováno v:
Journal of Animal Science. 100:140-141
The objective was to evaluate differences in grow-finish performance between 2 sources of basic copper chloride (BCC), IntelliBond C and another hydroxy chloride mineral (OHTM) BCC in the presence of a control diet. Pigs (n = 1,053) at the NCDA Tidew
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9d9fe1496a650ba945cccbea47d063b
https://doi.org/10.1093/jas/skac064.240
https://doi.org/10.1093/jas/skac064.240
Autor:
Jeffrey R. Sommer, Sydney L Shuping, Allison N Renwick, Mark Knauer, Casey C Nestor, Clay A. Lents, KaLynn Harlow
Publikováno v:
Biology of reproduction. 105(6)
Puberty onset is a complex physiological process, which enables the capacity for reproduction through increased gonadotropin-releasing hormone and subsequently luteinizing hormone secretion. While cells that coexpress kisspeptin, neurokinin B (NKB),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee24642f3b189e4ca232e460c4f2e5e6
https://pubmed.ncbi.nlm.nih.gov/34643223
https://pubmed.ncbi.nlm.nih.gov/34643223
Publikováno v:
J Anim Sci
The objective of this study was to estimate variance components for gestation length within the American Angus breed. Data (n = 148,649) from the American Angus Association, containing cattle born between 2000 to 2020, were used for the analysis. Bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c28cea755c9e4cfda7a3b542e5eddd53
https://europepmc.org/articles/PMC8264948/
https://europepmc.org/articles/PMC8264948/
Autor:
KaLynn Harlow, Sydney L Shuping, Allison Renwick, Casey C Nestor, Mark Knauer, Jeffrey R. Sommer
Publikováno v:
Journal of Animal Science. 99:127-128
Advancing gilt puberty onset is financially desirable for swine production. Neurons in the hypothalamic arcuate nucleus (ARC) that co-express kisspeptin, neurokinin B (NKB), and dynorphin (i.e. KNDy cells) are believed to control gonadotropin-releasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::134b2e4e3b3e0b3b97f177bfcfe69b0a
https://doi.org/10.1093/jas/skab235.232
https://doi.org/10.1093/jas/skab235.232