Search Results - "Hickson, R. E."

The effects of birth rank (single or twin) and dam age on the lifetime productive performance of female dual purpose sheep (Ovis aries) offspring in New Zealand by Pettigrew, E J, Hickson, R E, Morris, S T, Lopez-Villalobos, N, Pain, S J, Kenyon, P R, Blair, H T

“…Greater rates of genetic gain can be achieved by selecting animals born to younger parents. However, little is known about the lifetime performance of dual…”
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Behaviour of twin- and triplet-born lambs and their dam 3 to 18 hours after birth is not a useful predictor of lamb survival to weaning by Gronqvist, G V, Hickson, R E, Kenyon, P R, Morris, S T, Stafford, K J, Corner-Thomas, R A

“…An experiment was designed to determine if behaviour traits expressed by twin- and triplet-bearing lambs and their dams at 3-18 hours of age (after the…”
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Genetic parameters for production traits in New Zealand dual-purpose sheep, with an emphasis on dagginess by Pickering, N. K, Dodds, K. G, Blair, H. T, Hickson, R. E, Johnson, P. L, McEwan, J. C

“…Genetic and phenotypic parameters were estimated for production and disease traits (including dagginess) from about 2 million pedigree-recorded animals born…”
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Genetic parameters for milk components including lactose from test day records in the New Zealand dairy herd by Sneddon, NW, Lopez-Villalobos, N, Davis, SR, Hickson, RE, Shalloo, L

“…There are currently few published estimates of genetic parameters for lactose yield or lactose percentage for dairy cows. Recent trends in milk standardisation…”
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Increased yearling weight as a proportion of 21-month weight was associated with increased milk production in dairy heifers by Handcock, RC, Lopez-Villalobos, N, McNaughton, LR, Back, PJ, Edwards, GR, Hickson, RE

“…Aims: To examine the relationship between liveweight (LWT) at 12 months as a proportion of LWT at 21 months of age (LWT(12/21)%) and first lactation and…”
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Associations between Theileria orientalis Ikeda type infection and the growth rates and haematocrit of suckled beef calves in the North Island of New Zealand by Lawrence, KE, Lawrence, BL, Hickson, RE, Hewitt, CA, Gedye, KR, Fermin, LM, Pomroy, WE

“…AIMS: The principle aim of this study was to examine the association between infection with Theileria orientalis Ikeda type and growth rates of suckled beef…”
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Growth of weaned Friesian bull calves on a herb sward or with concentrate supplementation during late summer and early autumn by Pettigrew, E. J., Morris, S. T., Back, P. J., Kenyon, P. R., Berry, J., Donald, A. J., Lane, A. L., Hickson, R. E.

“…Growth rates of weaned bull calves in late summer/early autumn can be low in a ryegrass/white clover-based system. This experiment compared the liveweight gain…”
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Production and profitability of dairy farms producing milk with different concentrations of unsaturated fatty acids: a simulation study by Silva-Villacorta, D., Lopez-Villalobos, N., Blair, H. T., Hickson, R. E., MacGibbon, A. K.

“…This simulation study investigated the characteristics of farms that produced milk with a high concentration of unsaturated fatty acids (UFA) under New Zealand…”
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Effects of body condition score and nutrition in lactation on twin-bearing ewe and lamb performance to weaning by Corner-Thomas, RA, Hickson, RE, Morris, ST, Back, PJ, Ridler, AL, Stafford, KJ, Kenyon, PR

“…This study investigated the effect of feeding and body condition during late pregnancy and lactation on both ewe and lamb performance until weaning. On day 141…”
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Estimates of genetic and crossbreeding parameters for milk components and potential yield of dairy products from New Zealand dairy cattle by Sneddon, NW, Lopez-Villalobos, N, Davis, SR, Hickson, RE, Shalloo, L, Garrick, DJ

“…Milk composition can vary significantly among individual cows and breeds, and the dairy products that can be made from that milk are limited by available milk…”
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Yields and persistency of lactation in Friesian and Jersey cows milked once daily by Hickson, R E, Lopez-Villalobos, N, Dalley, D E, Clark, D A, Holmes, C W

“…Effects of milking cows once daily throughout lactation at high stocking rates (17% more cows/ha than for those milked twice daily) were studied in 2 Friesian…”
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Estimates of genetic parameters for breech strike and potential indirect indicators in sheep by Pickering, NK, Blair, HT, Hickson, RE, Johnson, PL, Dodds, KG, McEwan, JC

“…AIM: To determine flystrike incidence, and estimate genetic parameters and potential indicator traits to reduce breech strike susceptibility in Romney sheep in…”
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survey detailing the calving performance of primiparous 2-year-old beef heifers and outcomes of assisted calving by Hickson, RE, Anderson, WJ, Kenyon, PR, Lopez-Villalobos, N, Morris, ST

“…AIM: To examine via a survey the management at calving of primiparous, 2-year-old beef heifers on selected beef cattle farms in New Zealand and to investigate…”
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Responses in lactose yield, lactose percentage and protein-to-protein-plus-lactose ratio from index selection in New Zealand dairy cattle by Sneddon, NW, Lopez-Villalobos, N, Davis, SR, Hickson, RE, Shalloo, L, Garrick, DJ, Geary, U

“…The breeding goal of the New Zealand dairy industry is to improve the genetic capability of cows to convert pasture-based feed into farmer profit. The New…”
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Fertility and survival of Swedish Red and White × Holstein crossbred cows and purebred Holstein cows by Pipino, D.F., Piccardi, M., Lopez-Villalobos, N., Hickson, R.E., Vázquez, M.I.

“…Swedish Red and White × Holstein (S×H) cows were compared with pure Holstein (HOL) cows for fertility and survival traits in 2 commercial dairy farms in…”
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Heritabilities and genetic and phenotypic correlations for milk production and fertility traits of spring-calved once-daily or twice-daily milking cows in New Zealand by Jayawardana, J.M.D.R., Lopez-Villalobos, N., McNaughton, L.R., Hickson, R.E.

“…The objectives of this study were to estimate the genetic and phenotypic correlations and heritabilities for milk production and fertility traits in…”
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Fertility of dairy cows milked once daily or twice daily in New Zealand by Jayawardana, J.M.D.R., Lopez-Villalobos, N., McNaughton, L.R., Hickson, R.E.

“…The objective of this study was to evaluate the reproductive performance of New Zealand dairy cows with different milking regimens. A total of 2,562 herds…”
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Estimation of genetic parameters and individual and maternal breed, heterosis, and recombination loss effects for production and fertility traits of spring-calved cows milked once daily or twice daily in New Zealand by Jayawardana, J.M.D.R., Lopez-Villalobos, N., Hickson, R.E., McNaughton, L.R.

“…The objectives of this study were to estimate genetic parameters and individual and maternal breed, heterosis, and recombination loss effects for milk…”
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Non‐targeted analyses of animal plasma: betaine and choline represent the nutritional and metabolic status by Katayama, K, Sato, T, Arai, T, Amao, H, Ohta, Y, Ozawa, T, Kenyon, P. R, Hickson, R. E, Tazaki, H

“…Simple liquid chromatography–mass spectrometry (LC‐MS) was applied to non‐targeted metabolic analyses to discover new metabolic markers in animal plasma…”
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Dystocia in beef heifers: A review of genetic and nutritional influences by Hickson, RE, Morris, ST, Kenyon, PR, Lopez-Villalobos, N

“…Breeding beef heifers for the first time at 15 months of age has potential to increase the efficiency of the beef breeding-cow herd. An increased incidence of…”
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