Search Results - "Patterson, C. D."

Mitigation of enteric methane emissions through improving efficiency of energy utilization and productivity in lactating dairy cows by Yan, T, Mayne, C S, Gordon, F G, Porter, M G, Agnew, R E, Patterson, D C, Ferris, C P, Kilpatrick, D J

“…The data set used in the present study was obtained from 20 energy metabolism studies involving 579 lactating dairy cows (511 Holstein-Friesian, 36 Norwegian…”
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Effect of dietary protein content on animal production and blood metabolites of dairy cows during lactation by Law, R A, Young, F J, Patterson, D C, Kilpatrick, D J, Wylie, A R G, Mayne, C S

“…Ninety autumn-calving Holstein dairy cows [45 primiparous and 45 multiparous (mean parity, 3.1)] were allocated to 1 of 3 dietary crude protein (CP)…”
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An evaluation of the effect of altering nutrition and nutritional strategies in early lactation on reproductive performance and estrous behavior of high-yielding Holstein-Friesian dairy cows by Gilmore, H S, Young, F J, Patterson, D C, Wylie, A R G, Law, R A, Kilpatrick, D J, Elliott, C T, Mayne, C S

“…Reproductive performance in the high-yielding dairy cow has severely decreased in the last 40 yr. The aim of this study was to compare the effectiveness of 4…”
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Effect of precalving and postcalving dietary energy level on performance and blood metabolite concentrations of dairy cows throughout lactation by Law, R A, Young, F J, Patterson, D C, Kilpatrick, D J, Wylie, A R G, Ingvarsten, K L, Hameleers, A, McCoy, M A, Mayne, C S, Ferris, C

“…The effects of the level of energy intake (high E and low E) offered before and after calving on body condition score at calving, production performance, and…”
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Effect of dietary protein content on the fertility of dairy cows during early and mid lactation by Law, R A, Young, F J, Patterson, D C, Kilpatrick, D J, Wylie, A R G, Mayne, C S

“…Ninety autumn-calving Holstein dairy cows (45 primiparous and 45 multiparous; mean parity, 3.1) were allocated to 1 of 3 treatments; 173, 144, or 114 g of…”
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Depth, bed slope and wave climate dependence of long term average sand transport across the lower shoreface by Patterson, D.C., Nielsen, P.

“…We analyse measured 46year changes in nearshore bathymetry to quantify rates of net shore-normal sand transport (qx) in 10–20m depths at northern Gold Coast,…”
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Effect of dietary protein content on estrous behavior of dairy cows during early and mid lactation by Law, R A, Young, F J, Patterson, D C, Kilpatrick, D J, Wylie, A R G, Mayne, C S

“…One of the main contributing factors to the decline in fertility in contemporary dairy farming is the inability to detect cows in estrus. In the current study,…”
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Relationships between urea dilution measurements and body weight and composition of lactating dairy cows by Agnew, R E, Yan, T, McCaughey, W J, McEvoy, J D, Patterson, D C, Porter, M G, Steen, R W J

“…The objective of the present study was to investigate the potential of the urea dilution technique, coupled with live animal measures to predict the body…”
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Calving traits, milk production, body condition, fertility, and survival of Holstein-Friesian and Norwegian Red dairy cattle on commercial dairy farms over 5 lactations by Ferris, C P, Patterson, D C, Gordon, F J, Watson, S, Kilpatrick, D J

“…The objective of this study was to compare calving traits, BCS, milk production, fertility, and survival of Holstein-Friesian (HF) and Norwegian Red (NR) dairy…”
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Detection of tabtoxin‐producing strains of Pseudomonas syringae by PCR by Lydon, J., Patterson, C.D.

“…J. LYDON AND C. D. PATTERSON. 2001. Aims: The present study describes a system based on PCR to distinguish tabtoxin‐producing strains of Pseudomonas syringae…”
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Effect of feed space allowance and period of access to food on dairy cow performance by Ferris, C. P., Patterson, D. C., Mayne, C. S., O'Connell, N. E.

“…Two experiments were conducted to examine the ‘long‐term’ effect of feed space allowance and period of access to feed on dairy cow performance. In Experiment…”
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Effect of offering dairy cows diets differing in phosphorus concentration over four successive lactations: 2. Health, fertility, bone phosphorus reserves and nutrient utilisation by Ferris, C. P., McCoy, M. A., Patterson, D. C., Kilpatrick, D. J.

“…This experiment examined the long-term effects of offering diets containing low levels of dietary phosphorus (P) on dairy cow health, fertility and bone…”
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Effect of offering dairy cows diets differing in phosphorus concentration over four successive lactations: 1. Food intake, milk production, tissue changes and blood metabolites by Ferris, C. P., Patterson, D. C., McCoy, M. A., Kilpatrick, D. J.

“…The loss of phosphates from dairy farms contributes to the eutrophication of waterways. Whilst reducing the phosphorus (P) content of dairy cow diets has the…”
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A comparison of two grassland-based systems for autumn-calving dairy cows of high genetic merit by Gordon, F J, Ferris, C P, Patterson, D C, Mayne, C S

“…A full lactation study compared the performance of autumn‐calving dairy cows of high genetic merit under two contrasting systems of milk production: high…”
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Some results on pseudosquares by Lukes, R. F., Patterson, C. D., Williams, H. C.

“…If p is an odd prime, the pseudosquare L_p is defined to be the least positive nonsquare integer such that L_p\equiv1\pmod{8} and the Legendre symbol (L_p/q)=1…”
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The Effect of Early-Spring Grazing on the Intake and Performance of Dairy Cows Managed on Two Contrasting Systems of Milk Production during the Winter by Ferris, C. P., Gordon, F. J., Patterson, D. C.

“…A study was designed to examine the effects of early-spring grazing on the performance of dairy cows managed on two contrasting systems of milk production…”
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Beef production potential of Norwegian Red and Holstein-Friesian bulls slaughtered at two ages by Kirkland, R. M., Patterson, D. C., Keady, T. W. J., Moss, B. W., Steen, R. W. J.

“…There is a paucity of data on the beef production potential of Norwegian Red (NOR) compared with ‘modern’ Holstein-Friesian (HF) cattle. The present study used…”
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The effects of incorporating small quantities of straw in grass/grass silage-based diets for dairy cows by Ferris, C P, Patterson, D C, Gordon, F J, Kilpatrick, D J

“…Two studies were conducted to examine the effects of incorporating small quantities of straw in the diets of dairy cows. In Experiment 1, forty Holstein…”
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The influence of genetic index for milk production on the response to complete diet feeding and the utilization of energy and nitrogen by Gordon, F. J., Patterson, D. C., Yan, T., Porter, M. G., Mayne, C. S., Unsworth, E. F.

“…Thirty-six Holstein/Friesian cows were used in a 3 × 2 factorial design randomized-block experiment to evaluate the production and nutrient utilization…”
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The effect of quality of grass and maize silage on the intake and performance of beef cattle by Kirkland, R.M., Patterson, D.C.

“…A study was undertaken to evaluate the effects of incorporating high (HMS) and low (LMS) maturity maize silages into diets based on low (LGS) and high (HGS)…”
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