Feeding altrenogest during late lactation improves fertility of primiparous sows nursing smaller litters

by Am-in, Nutthee, Kirkwood, Roy N.
Published in Can J Vet Res (2019)

The Influence of Feeding Allyl Trenbolone During Late Lactation on the Reproductive Performance of Primaparous and Multiparous Sows

by Kirkwood, Roy N., Aherne, Frank X.
Published 1988

The influence of original breeding weight and estrus of mating on the productivity of sows over four parities

by Kirkwood, Roy N., Thacker, Philip A.
Published 1989

The influence of a premating injection of gonadotrophin-releasing hormone on sow and gilt fertility

by Kirkwood, Roy N., Thacker, Philip A.
Published 1989

Serum Anti-Mullerian Hormone and Estradiol Concentrations in Gilts and Their Age at Puberty

by Am-in, Nutthee, Suwimonteerabutr, Junpen, Kirkwood, Roy N.
Published in Animals (Basel) (2020)

Observations on the influence of exogenous gonadotrophins and cloprostenol on ovulation in gilts

by Kirkwood, Roy N., Thacker, Philip A., Chaplin, Ronald K.
Published 1991

Influence of parity of birth and suckled sows on piglet nasal mucosal colonization with Haemophilus parasuis

by Brean, Marion, Abraham, Sam, Hebart, Michelle, Kirkwood, Roy N.
Published in Can Vet J (2016)

Are Larger Litters a Concern for Piglet Survival or An Effectively Manageable Trait?

by Ward, Sophia A., Kirkwood, Roy N., Plush, Kate J.
Published in Animals (Basel) (2020)

Sex bias of the birth litter affects surge but not tonic LH secretion in gilts

by Seyfang, Jemma, Kirkwood, Roy N, Tilbrook, Alan J, Ralph, Cameron R
Published in J Anim Sci (2018)

Development and Function of the Intestinal Microbiome and Potential Implications for Pig Production

by Nowland, Tanya L., Plush, Kate J., Barton, Mary, Kirkwood, Roy N.
Published in Animals (Basel) (2019)

The RNA Chaperone Hfq Promotes Fitness of Actinobacillus pleuropneumoniae during Porcine Pleuropneumonia

by Subashchandrabose, Sargurunathan, Leveque, Rhiannon M., Kirkwood, Roy N., Kiupel, Matti, Mulks, Martha H.
Published 2013

Influence of Backfat Thickness and the Interval from Altrenogest Withdrawal to Estrus on Reproductive Performance of Gilts

by Thitachot, Krittawat, Sirinopwong, Voramet, Seemuang, Viriya, Ratchatasriprasert, Akkapon, Kirkwood, Roy N., Am-in, Nutthee
Published in Animals (Basel) (2021)

Effect of piglet separation from dam at birth on colostrum uptake

by Manjarín, Rodrigo, Montano, Yanisse A., Kirkwood, Roy N., Bennet, Darin C., Petrovski, Kiro R.
Published in Can J Vet Res (2018)

Anogenital distance reflects the sex ratio of a gilt’s birth litter and predicts her reproductive success

by Seyfang, Jemma, Ralph, Cameron R, Hebart, Michelle L, Tilbrook, Alan J, Kirkwood, Roy N
Published in J Anim Sci (2018)

Effect of Oxytocin, Cloprostenol or Buserelin in Semen Doses on Sow Fertility

by Manjarín, Rodrigo, Kirkwood, Roy N., Ngula, Jose, Martinez-Pastor, Felipe, Alegre, Beatrix, Domínguez, Juan Carlos
Published in Animals (Basel) (2019)

Characterisation of Early Microbial Colonisers within the Spiral Colon of Pre- and Post-Natal Piglets

by Nowland, Tanya L., Kirkwood, Roy N., Torok, Valeria A., Plush, Kate J., Barton, Mary D.
Published in Life (Basel) (2021)

Exposure to maternal feces in lactation influences piglet enteric microbiota, growth, and survival preweaning

by Nowland, Tanya L, Kirkwood, Roy N, Plush, Kate J, Barton, Mary D, Torok, Valeria A
Published in J Anim Sci (2021)

Relationship between vaginal mucus conductivity and time of ovulation in weaned sows

by Hidalgo, David M., Cassar, Glen, Manjarin, Rodrigo, Dominguez, Juan C., Friendship, Robert M., Kirkwood, Roy N.
Published in Can J Vet Res (2015)

Effect of additional human chorionic gonadotrophin (hCG) on follicular growth and ovulation in gonadotrophin-treated gilts

by Manjarín, Rodrigo, Cassar, Glen, Friendship, Robert M., Garcia, José C., Dominguez, J. Carlos, Kirkwood, Roy N.
Published in Can J Vet Res (2015)

Branched-Chain Amino Acids Are Required for the Survival and Virulence of Actinobacillus pleuropneumoniae in Swine

by Subashchandrabose, Sargurunathan, LeVeque, Rhiannon M., Wagner, Trevor K., Kirkwood, Roy N., Kiupel, Matti, Mulks, Martha H.
Published 2009