Search Results - "Friendship, R.M."

Meta-analysis of genetic parameter estimates for reproduction, growth and carcass traits of pigs in the tropics by Akanno, E.C., Schenkel, F.S., Quinton, V.M., Friendship, R.M., Robinson, J.A.B.

“…The design of swine breeding programs for the tropics requires knowledge of genetic parameters for economically important traits determined under tropical…”
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In vitro assessment of antimicrobial activity of carvacrol, thymol and cinnamaldehyde towards Salmonella serotype Typhimurium DT104: effects of pig diets and emulsification in hydrocolloids by Si, W, Gong, J, Chanas, C, Cui, S, Yu, H, Caballero, C, Friendship, R.M

“…To determine the effect of pig diets in vitro on the antimicrobial activity of carvacrol, thymol and cinnamaldehyde, and to identify an emulsifier/stabilizer…”
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The negative effects of exogenous DNA binding on porcine spermatozoa are caused by removal of seminal fluid by Kang, J.H., Hakimov, H., Ruiz, A., Friendship, R.M., Buhr, M., Golovan, S.P.

“…Sperm-mediated gene transfer (SMGT) might become the most efficient and cost effective technique to generate transgenic animals, which will significantly…”
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Persistency of accuracy of genomic breeding values for different simulated pig breeding programs in developing countries by Akanno, E.C, Schenkel, F.S, Sargolzaei, M, Friendship, R.M, Robinson, J.A.B

“…Genetic improvement of pigs in tropical developing countries has focused on imported exotic populations which have been subjected to intensive selection with…”
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Prevalence of Yersinia enterocolitica shedding and bioserotype distribution in Ontario finisher pig herds in 2001, 2002, and 2004 by Poljak, Z., Dewey, C.E., Martin, S.W., Rosendal, T., Christensen, J., Ciebin, B., Friendship, R.M.

“…We investigated characteristics of Yersinia enterocolitica infection in Ontario finisher pig herds. Our specific objectives were to estimate or test:…”
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Associations between litter size and specific sow-level management factors in Ontario swine by Dewey, C.E., Martin, S.W., Friendship, R.M., Kennedy, B.W., Wilson, M.R.

“…This retrospective study examined associations between sow-level management factors and litter size in a target population of Ontario swine farms that used…”
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Occurrence of Salmonella, Campylobacter, Yersinia enterocolitica, Escherichia coli O157 and Listeria monocytogenes in Swine by Farzan, A, Friendship, R.M, Cook, A, Pollari, F

“…The objective of this study was to investigate the occurrence of major bacterial foodborne pathogens in swine. In total, 359 samples from manure storage tanks…”
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Influence of lactation length and gonadotrophins administered at weaning on fertility of primiparous sows by Hidalgo, D.M., Friendship, R.M., Greiner, L., Manjarin, R., Amezcua, M.R., Dominguez, J.C., Kirkwood, R.N.

“…The aim of this study was to determine the effect of lactation length and treatment with gonadotrophins at weaning on reproductive performance of primiparous…”
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Prevalence of Actinobacillus pleuropneumoniae, Actinobacillus suis, Haemophilus parasuis, Pasteurella multocida, and Streptococcus suis in representative Ontario swine herds by MacInnes, J.I, Gottschalk, M, Lone, A.G, Metcalf, D.S, Ojha, S, Rosendal, T, Watson, S.B, Friendship, R.M

“…Tonsillar and nasal swabs were collected from weanling pigs in 50 representative Ontario swine herds and tested for the presence of 5 important bacterial upper…”
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Prevalence of Salmonella spp. on Canadian pig farms using liquid or dry-feeding by Farzan, Abdolvahab, Friendship, Robert M., Dewey, Catherine E., Warriner, Keith, Poppe, Cornelius, Klotins, Kim

“…The objective of this study was to determine whether the shedding and antibody titre to Salmonella was lower for pig herds provided liquid-feed compared to…”
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Prevalence of and risk factors for influenza in southern Ontario swine herds in 2001 and 2003 by Poljak, Z, Dewey, C.E, Martin, S.W, Christensen, J, Carman, S, Friendship, R.M

“…This research included 2 prevalence studies and a risk-factor investigation conducted in 2001 at 93 sites with sows only, finishers only, or both. In 2001,…”
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Evaluation of the Risk Factors for Shedding Salmonella with or without Antimicrobial Resistance in Swine Using Multinomial Regression Method by Farzan, A, Friendship, R.M, Dewey, C.E, Poppe, C, Funk, J

“…A multinomial logistic regression method was used to investigate the risk factors for antimicrobial resistance (AMR) in Salmonella isolated from faecal samples…”
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effect of dentition on feeding development in piglets and on their growth and behavior after weaning by Tucker, A.L, Duncan, I.J.H, Millman, S.T, Friendship, R.M, Widowski, T.M

“…The objectives of this study were to determine the effects of dentition on feed-oriented behavior and feed consumption before weaning at 28 d, and whether…”
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investigation of the presence of Escherichia coli O149:K91:F4 on pig farms in southern Ontario and the use of antimicrobials and risk factors associated with the presence of this serogroup by Amezcua, R, Friendship, R.M, Dewey, C.E

“…Prevalence, causative factors, treatment, and preventative measures for O149:K91:F4 Escherichia coli infection of postweaning pigs was determined by using a…”
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Investigation of exposure to swine influenza viruses in Ontario (Canada) finisher herds in 2004 and 2005 by Poljak, Zvonimir, Friendship, Robert M., Carman, Susy, McNab, W. Bruce, Dewey, Catherine E.

“…The epidemiology of influenza in the North American swine population has changed since the emergence of a triple-reassortant H3N2 influenza virus. Although…”
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Presentation of postweaning Escherichia coli diarrhea in southern Ontario, prevalence of hemolytic E. coli serogroups involved, and their antimicrobial resistance patterns by Amezcua, R, Friendship, R.M, Dewey, C.E, Gyles, C, Fairbrother, J.M

“…Post-weaning Escherichia coli diarrhea (PWECD) in Ontario was investigated using a case-control study involving 50 Ontario nurseries. The clinical signs and…”
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Effect of dose of equine chorionic gonadotrophin on the estrus responses of gilts and weaned sows and effect of the interval between equine chorionic gonadotrophin and luteinizing hormone injections on sow performance by Cassar, G, Friendship, R.M, Zak, L.J, Rogan, D, Kirkwood, R.N

“…Objectives: To determine estrus and ovulation responses of gilts and sows to different doses of equine chorionic gonadotrophin (eCG), with different intervals…”
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Prevalence of Campylobacter spp. isolated from grower-finisher pigs in Ontario by Varela, N.P, Friendship, R.M, Dewey, C.E

“…This study aimed to establish the prevalence of Campylobacter spp. in 80 Ontario grower-finisher pig herds. Ninety-nine percent of the isolates yielded…”
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Effect of prior FSH treatment on the estrus and ovulation responses to eCG in prepubertal gilts by Manjarin, R., Dominguez, J.C., Castro, M.J., Vallado, B., Rodriguez, S., Sprecher, D.J., Cassar, G., Friendship, R.M., Kirkwood, R.N.

“…The objective of this study was to determine the effect of pre-treatment of prepubertal gilts with FSH on the estrus and ovulatory responses to eCG injection…”
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Distribution of Salmonella serovars and phage types on 80 Ontario swine farms in 2004 by Farzan, A, Friendship, R.M, Dewey, C.E, Muckle, A.C, Gray, J.T, Funk, J

“…The objective of this study was to describe the distribution of Salmonella spp. on Ontario grower-finisher pig farms. Eighty swine farms were visited from…”
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