Murphy, Thomas W Freking, Brad A
Published in
Journal of animal science
The objective of this study was to evaluate wool (Dorset and Rambouillet) and hair (Dorper, Katahdin, and White Dorper) breeds for their ability to complement Romanov germplasm in an annual fall lambing system by estimating direct maternal grandsire and sire breed effects on economically important lamb and ewe traits. After 3 yr of evaluation under...
Vargovic, Laura Hermesch, Susanne Athorn, Rebecca Z Bunter, Kim L
Published in
Journal of animal science
Electronic sow feeding (ESF) systems are used to control feed delivery to individual sows that are group-housed. Feeding levels for gestating sows are typically restricted to prevent excessive body weight gain. Any alteration of intake from the allocated feeding curve or unusual feeding behavior could indicate potential health issues. The objective...
Steyn, Yvette Lourenco, Daniela A Chen, Ching-Yi Valente, Bruno D Holl, Justin Herring, William O Misztal, Ignacy
Published in
Journal of animal science
In the pig industry, purebred animals are raised in nucleus herds and selected to produce crossbred progeny to perform in commercial environments. Crossbred and purebred performances are different, correlated traits. All purebreds in a pen have their performance assessed together at the end of a performance test. However, only selected crossbreds a...
Oba, Patrícia M Lee, Anne H Vidal, Sara Wyss, Romain Miao, Yong Adesokan, Yemi Swanson, Kelly S
Published in
Journal of animal science
GNU100 is a novel animal milk oligosaccharide (AMO) biosimilar. In a recent in vitro fermentation study, GNU100 was shown to be fermentable by feline gastrointestinal microbiota and lead to increased short-chain fatty acid production. Our objectives herein were to evaluate the palatability, safety, and gastrointestinal tolerance of GNU100 in health...
Robbins, Lindsey A Green-Miller, Angela R Johnson, Jay S Gaskill, Brianna N
Published in
Journal of animal science
Thermal stress can result in productivity losses, morbidity, and mortality if proper management practices are not employed. A basic understanding of the relationship between animals and the thermal environment is crucial to assess the environment's impact on livestock performance. Therefore, the study objective was to evaluate whether different ear...
Ramos-Nieves, Jose M Giesy, Sarah L McGuckin, Molly M Boisclair, Yves R
Published in
Journal of animal science
Intrauterine growth restriction (IUGR) is often observed in one of the fetuses carried by well-fed prolific ewes. This condition is the result of an insufficient placental size to cover the nutritional needs of the fetus during the near exponential growth phase of the last trimester. After birth, these IUGR offspring have an elevated appetite and l...
Blakebrough-Hall, Claudia Hick, Paul González, Luciano A
Published in
Journal of animal science
Bovine respiratory disease (BRD) is the most significant disease affecting feedlot cattle. Indicators of BRD often used in feedlots such as visual signs, rectal temperature, computer-assisted lung auscultation (CALA) score, the number of BRD treatments, presence of viral pathogens, viral seroconversion, and lung damage at slaughter vary in their ab...
Abbas, Waseem Keel, Brittney N Kachman, Stephan D Fernando, Samodha C Wells, James E Hales, Kristin E Lindholm-Perry, Amanda K
Published in
Journal of animal science
Abscess is the highest cause of liver condemnation and is estimated to cost the beef industry US$64 million annually. Fusobacterium necrophorum, commonly found in the bovine rumen, is the primary bacteria associated with liver abscess in cattle. Theoretically, damage to the rumen wall allows F. necrophorum to invade the bloodstream and colonize the...
Krogh, Uffe Farmer, Chantal Huber, Lee-Anne Theil, Peter K Trottier, Nathalie L
Published in
Journal of animal science
This study was conducted to test the hypothesis that supplemental dietary Arg to late-pregnant and lactating sows increases serum prolactin concentrations and mRNA abundance of SLC7A1, SLC7A2, and SLC6A14 in mammary parenchymal tissue. From day 108 of gestation and until day 21 of lactation, sows were fed a diet either supplemented with 0.10 g of l...
Gunawan, Andrea M Yen, Con-Ning Richert, Brian T Schinckel, Allan P Grant, Alan L Gerrard, David E
Published in
Journal of animal science
Feeding ractopamine (RAC), a β-adrenergic agonist (BAA), to pigs increases type IIB muscle fiber type-specific protein and mRNA expression. However, increases in the abundance of these fast-twitch fiber types occur with other forms of muscle hypertrophy and thus BAA-induced changes in myosin heavy chain (MyHC) composition may simply be associated w...
