Nutrient Requirements of Domestic Animals By various authors. Washington DC, USA: National Academy Press. Marketed in Europe and Africa by John Wiley, Chichester, UK. The series includes: Nutrient Requirements of: (1) Cats (1978, pp. 55, £8.90/$9.35); (2) Coldwater Fishes (1981, pp. 63, £9.45/$11.85; (3) Dairy Cattle (1978, pp. 76, £9.45/$9.90); (4) Goats: Angora, Dairy and Meat Goats in Temperate Countries (1981, pp. 91, £9.95/$10.45); (5) Horses (1978, pp. 33, £8.15/$8.55); (6) Laboratory Animals (1978, pp. 96, £10.50/$11.00); (7) Mink and Foxes (1982, pp. 72, £12.00/$12.65); (8) Nonhuman Primates (1978, pp. 83, £8.40/$8.80); (9) Rabbits (1977, pp. 30, £7.60/$7.95); (10) Swine (1979, pp. 52, £9.00/$10.45); (11) Warm Water Fishes and Shellfishes (1983, pp. 102, £18.35/$19.25); (12) Sheep (1985, 6th ed., pp. 112, £11.90/$14.85); (13) Poultry (1984, 8th ed., pp. 80, £11.00/$13.75); (14) Beef Cattle (1984, 6th ed., pp. 100, £9.50/$11.85); (15) Dogs (1985, 2nd ed., pp. 79, £11.00/$13.75).

Four studies and populations of beef animals were used to evaluate different methods of expressing energy requirements by comparing actual to predicted gains of bulls and steers fed in Ontario. Large differences between predicted and actual gains occurred. Based on a total of 503 animals, gains predicted by the net energy method (National Academy of Sciences–National Research Council. 1970. Nutrient requirements of domestic animals. 4. Nutrient requirements of beef cattle. (4th rev.). Nat. Acad. Sci., Publ. ISBN 0-309-01754-8; Washington, D.C.) were approximately 20% below the actual gains but exceptions within treatment groups were evident. Three hundred and twenty-five individually fed bulls were used to compare the accuracy with which gains were predicted from equations using total digestible nutrients (National Academy of Sciences–National Research Council. 1963. Nutrient requirements of domestic animals. 4. Nutrient requirements of beef cattle. Nat. Acad. Sci., Publ. 1137, Washington, D.C.) net energy (National Academy of Sciences–National Research Council. 1970. Nutrient requirements of domestic animals. 4. Nutrient requirements of beef cattle. (4th rev.). Nat. Acad. Sci., Publ. ISBN 0-309-01754-8, Washington, D.C), and metabolizable energy (Agricultural Research Council. 1965. The nutrient requirements of farm animals. No. 2. Ruminants. London, England). The metabolizable energy method predicted gains most accurately.

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National Research Council. Nutrient Requirements of Nonhuman Primates, 2nd revised edition. Washington, DC: The National Academies Press2003. pp. 286 + xviii, £34·95 (Paperback). ISBN 0 309 06989 0

British Journal Of Nutrition ◽

10.1079/bjn20031008 ◽

2004 ◽

Vol 91 (1) ◽

pp. 169-170

Author(s):

Eluned C. Price

Keyword(s):

Research Council ◽

Nonhuman Primates ◽

National Research Council ◽

Washington Dc ◽

Nutrient Requirements

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The effect of stage of grass maturity at harvesting and restricting fermentation on the intake of grass silage by beef cattle

Proceedings of the British Society of Animal Science ◽

10.1017/s0308229600032566 ◽

1998 ◽

Vol 1998 ◽

pp. 43-43

Author(s):

L.E.R. Dawson ◽

R.W.J. Steen ◽

C.P. Ferris

Keyword(s):

Beef Cattle ◽

Dairy Cattle ◽

Nutrient Requirements ◽

Nutrient Intakes ◽

Breeding Programs ◽

Grass Silage ◽

Genetic Potential ◽

Optimum Approach ◽

Potential Methods ◽

Intensive Breeding

In recent years there has been an improvement in the genetic potential of dairy cattle through intensive breeding programs and of beef cattle through a shift from native beef breeds to Continental breeds. These potential improvements can only be realised if increased intakes can be achieved. If conserved forages are to meet these higher nutrient requirements then the intake of conserved forages should be maximised. Two potential methods by which silage intake can be increased are by increasing silage digestibility through more frequent harvesting of grass (Gordon, 1989) or by restricting fermentation of the resulting silage (Doherty and Mayne, 1996). The objective of the current study was to examine the relative effects of digestibility and restricting fermentation on the intake of silage with the aim of establishing the optimum approach to achieving higher nutrient intakes from ensiled forages.

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The effect of stage of grass maturity at harvesting and restricting fermentation on the intake of grass silage by beef cattle

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200596951 ◽

1998 ◽

Vol 1998 ◽

pp. 43-43

Author(s):

L.E.R. Dawson ◽

R.W.J. Steen ◽

C.P. Ferris

Keyword(s):

Beef Cattle ◽

Dairy Cattle ◽

Nutrient Requirements ◽

Nutrient Intakes ◽

Breeding Programs ◽

Grass Silage ◽

Genetic Potential ◽

Optimum Approach ◽

Potential Methods ◽

Intensive Breeding

In recent years there has been an improvement in the genetic potential of dairy cattle through intensive breeding programs and of beef cattle through a shift from native beef breeds to Continental breeds. These potential improvements can only be realised if increased intakes can be achieved. If conserved forages are to meet these higher nutrient requirements then the intake of conserved forages should be maximised. Two potential methods by which silage intake can be increased are by increasing silage digestibility through more frequent harvesting of grass (Gordon, 1989) or by restricting fermentation of the resulting silage (Doherty and Mayne, 1996). The objective of the current study was to examine the relative effects of digestibility and restricting fermentation on the intake of silage with the aim of establishing the optimum approach to achieving higher nutrient intakes from ensiled forages.

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Nutrient Requirements of Domestic Animals. Number 4. Nutrient Requirements of Beef Cattle

Poultry Science ◽

10.3382/ps.0552495a ◽

1976 ◽

Vol 55 (6) ◽

pp. 2495

Author(s):

H.D. Branion

Keyword(s):

Beef Cattle ◽

Domestic Animals ◽

Nutrient Requirements

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Seroprevalence of Toxoplasma gondii in Beef Cattle and Dairy Cattle in Northeast China

Foodborne Pathogens and Disease ◽

10.1089/fpd.2011.1104 ◽

2012 ◽

Vol 9 (7) ◽

pp. 579-582 ◽

Cited By ~ 12

Author(s):

Jian-Hua Qiu ◽

Chun-Ren Wang ◽

Xu Zhang ◽

Zhong-Hua Sheng ◽

Qiao-Chen Chang ◽

...

Keyword(s):

Toxoplasma Gondii ◽

Beef Cattle ◽

Dairy Cattle ◽

Northeast China

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Influencing Perceptions in Non-animal Science Majors: Impact of a High Enrollment, Asynchronous Core Curriculum Science General Animal Science Course

Journal of Animal Science ◽

10.1093/jas/skab096.083 ◽

2021 ◽

Vol 99 (Supplement_2) ◽

pp. 45-45

Author(s):

Sushil Paudyal ◽

Leslie Frenzel ◽

Kathrin Dunlap

Keyword(s):

Beef Cattle ◽

Dairy Cattle ◽

Student Perceptions ◽

Core Curriculum ◽

Small Animal ◽

Likert Scale ◽

Animal Production ◽

Science Majors ◽

Animal Science ◽

Production Industry

Abstract Perceptions of animal production industry and background knowledge of animal science vary greatly amongst students, particularly non-animal science majors. The objective was to assess the influence of a large asynchronous core curriculum science course, General Animal Science, on non-major student perceptions and knowledge of animal science. Student surveys (n = 634) were conducted (preceding and subsequent to course completion. The majority (57.66%) indicated no agriculture background. Among those reporting an agriculture background, 47.82% indicated having animal industry experience, and a mean score of 4.22 [SD 2.96; Likert scale (0–10)] evaluating perceived strength of their agriculture background. Of respondents, 34.77% indicated experience with companion animal, 13.6% beef cattle, 12.5% equine, 10.4% sheep and goats, 8.01% swine, 9.7% poultry, and 3.5% dairy cattle. Post-course responses were received from 71% of the enrolled students (n=541), and comprised of freshman (0–29 credit hours; n = 81), sophomore (30–59, n = 142), junior (60–89; n = 141), senior (90+; n = 48). Respondents indicated a mean score of 7.51 [SD 2.47; Likert scale (0–10)] that this course increased their interest in animal science and indicated a mean score of 6.71 (SD 2.97) on motivation to further their animal science knowledge. Students reported they felt more informed in beef cattle (40.10%), dairy cattle (15.05%), equine (14.56%), poultry (10.92%), swine (4.61%), and small animal (6.55%) production industries. Respondents (98.06%) indicated increased confidence as an educated consumer of animal products and a majority (92.2%) agreed this course helped eliminate misconceptions related to the animal production industry. In addition, 34.22% responded extremely likely, and 50.73% somewhat likely to utilize course knowledge in their everyday life. We concluded that enrollment in the asynchronous core curriculum science course, General Animal Science, reduced misconceptions related to animal production and increased knowledge of and appreciation of the animal production industry in non-animal science majors.

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Relative performance of white clover (Trifolium repens) cultivars and experimental synthetics under rotational grazing by beef cattle, dairy cattle and sheep

Crop and Pasture Science ◽

10.1071/cp21084 ◽

2021 ◽

Vol 72 (11) ◽

pp. 926

Author(s):

M. Z. Z. Jahufer ◽

J. L. Ford ◽

G. R. Cousins ◽

D. R. Woodfield

Keyword(s):

Beef Cattle ◽

Dairy Cattle ◽

White Clover ◽

Trifolium Repens ◽

Genotypic Variation ◽

Relative Performance ◽

Seasonal Growth ◽

Sheep Grazing ◽

Rotational Grazing ◽

Average Performance

Assessment of the relative performance of white clover (Trifolium repens L.) cultivars, using multi-year and multi-location seasonal growth trials, is key to identification of material with specific and broad adaptation. This paper is based on a multi-year and multi-location study of 56 white clover entries comprising 14 commercial cultivars and 42 experimental synthetic lines evaluated for seasonal growth under rotational grazing across four locations in New Zealand over 4years. The four locations (and animals grazing) were: Kerikeri (beef cattle), Aorangi (beef cattle), Ruakura (dairy cattle), Lincoln (sheep). Significant (P<0.05) genotypic variation among the 56 entries, and genotype × year, genotype× location and genotype× season interactions, were estimated. We were able to identify cultivars and experimental synthetics with specific and broad adaptation to the three grazing management types. Cvv. AberDance, Apex, Demand, Prestige, Quartz and Riesling, with leaf size ranging from small to medium–large, showed highly above-average performance under sheep grazing. Synthetic lines 15 and 45 also had highly above-average performance under sheep grazing. Cvv. Legacy and Kopu II showed above-average performance under cattle and dairy grazing. Synthetics 15, 48, 49, 44, 22 and 18 and cv. Quartz had above-average performance under all three grazing managements. Synthetics 27, 33 and 38 had highly above-average performance across all three grazing managements and were superior to all 14 cultivars evaluated. Several of these superior synthetics are being tested across multiple grazing environments. Among the 14 cultivars evaluated, Legacy and Quartz showed superior seasonal growth performance across the three grazing managements. Quartz is being evaluated in several on-farm trials across temperate regions of the world.

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