Absence of a weight gain response to vitamin B12supplementation in weaned beef cattle grazing pastures of marginal cobalt content

Abstract Annual ryegrass (Lolium multiflorum Lam.) can be divided into two cytotypes: diploid (2n = 2x) and tetraploid (2n = 4x). Polyploid versions of a given plant species result in increased seedling vigor, more robust growth and, potentially, greater yield. While most data suggest no difference in yield between diploid and tetraploid cultivars, there is still potential for weight gain advantages thanks to increased non-structural carbohydrates in tetraploid cells. The objectives of this study were to compare weight gain of cattle grazing either diploid or tetraploid cultivars of annual ryegrass. Two diploid annual ryegrass cultivars (Marshall and Tam 90) and two tetraploid cultivars (Jumbo and Nelson) were planted in 0.81-ha pastures, each replicated four times. Four steers (mean initial BW = 214 kg) were randomly assigned to each pasture for an 82-d grazing period. Body weights were recorded starting at d0 then every 28 days throughout the season. Data were analyzed in the GLM procedure of SAS using a significance level of α = 0.05. There were significant differences between cytotypes with respect to seasonal yield with diploids (9547.90 kg/ha) yielding greater than tetraploids (7762.00 kg/ha). As expected, ADF and NDF fractions were significantly less for tetraploids (ADF; 31.39%, NDF; 31.39%) compared to diploids (ADF; 33.75%, NDF; 53.25%). Tetraploids also contained significantly greater crude protein (13.50%) than diploids (12.90%). Cytotype had no effect on final average daily gain (ADG) (P = 0.9427). However, final ADG was significantly impacted by cultivar (P = 0.0134). Final ADG for Tam 90 (1.10 kg/d) was greater than Marshall (0.92 kg/d). Cattle grazing Nelson (1.04 kg/d) and Jumbo (0.99 kg/d) did not differ. Results show that regardless of differences in seasonal yield and nutritive value between cytotypes, there were no advantages in ADG for cattle grazing either cytotype.

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Absence of a weight gain response to Vitamin B12supplementation in weaned dairy heifers grazing pastures of marginal cobalt content

New Zealand Veterinary Journal ◽

10.1080/00480169.1999.36128 ◽

1999 ◽

Vol 47 (4) ◽

pp. 125-127 ◽

Cited By ~ 4

Author(s):

R.G. Clark ◽

R.S. Ellison ◽

L. Mortleman ◽

J.A. Kirks ◽

H.V. Henderson

Keyword(s):

Weight Gain ◽

Cobalt Content ◽

Dairy Heifers

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Efficiency of nitrogen metabolism in beef cattle grazing pasture and supplemented with different protein levels in the rainy season

Tropical Animal Health and Production ◽

10.1007/s11250-017-1485-3 ◽

2017 ◽

Vol 50 (4) ◽

pp. 715-720 ◽

Cited By ~ 2

Author(s):

Renata Pereira da Silva-Marques ◽

Joanis Tilemahos Zervoudakis ◽

Luciana Keiko Hatamoto-Zervoudakis ◽

Pedro Ivo José Lopes da Rosa e Silva ◽

Núbia Bezerra do Nascimento Matos ◽

...

Keyword(s):

Beef Cattle ◽

Nitrogen Metabolism ◽

Rainy Season ◽

Cattle Grazing ◽

Protein Levels

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A Comparison of Pearl Millet and Sorghum–Sudangrass Pastures during the Frost-Prone Autumn for Growing Beef Cattle in Semiarid Region

Agriculture ◽

10.3390/agriculture11060541 ◽

2021 ◽

Vol 11 (6) ◽

pp. 541

Author(s):

Leonard M. Lauriault ◽

Leah H. Schmitz ◽

Shad H. Cox ◽

Eric J. Scholljegerdes

Keyword(s):

Weight Gain ◽

Beef Cattle ◽

Pearl Millet ◽

Nutritive Value ◽

Agricultural Science ◽

Forage Yield ◽

Hydrocyanic Acid ◽

Science Center ◽

Forage Crops ◽

Sorghum Sudangrass

Sorghum–sudangrass (Sorghum bicolor × S. sudanense (Piper) Stapf.) and pearl millet (Pennisetum glaucum (L.) R. Br.) provide adequate nutritive value for growing beef cattle; however, unlike pearl millet, sorghum–sudangrass produces hydrocyanic acid (which is toxic to livestock) when frosted. Forage yield, nutritive value, and weight gain of growing cattle grazing sorghum–sudangrass and pearl millet were compared during the frost-prone autumns of 2013 and 2014, at New Mexico State University’s Rex E. Kirksey Agricultural Science Center in Tucumcari, NM USA, in randomized complete block designs each year with two replicates. No differences existed between pearl millet and sorghum–sudangrass forage yield, although there was a year–forage interaction for fiber-based nutritive value components because of maturity differences across years between the forages when freeze-killed. Pearl millet allowed for extending grazing of available forage for an additional 14 and 24 d in 2013 and 2014, respectively, compared to sorghum–sudangrass during the frost-prone autumn periods. During that period, when sorghum forages produce potentially toxic levels of hydrocyanic acid, animals grazing pearl millet accumulated an additional average of 94.9 kg live-weight gain ha−1 (p < 0.001). These factors afford producers an opportunity to increase returns on the similar investments of establishing and managing warm-season annual forage crops each year, and allow more time to stockpile cool-season perennial and annual forages for winter and early spring grazing, or to reduce hay feeding.

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A Physiological-Monitoring Electronic Platform for Cattle Grazing Systems

International Journal of Agricultural and Environmental Information Systems ◽

10.4018/ijaeis.2020070101 ◽

2020 ◽

Vol 11 (3) ◽

pp. 1-12

Author(s):

Ricardo R. Santos ◽

Fabiana V. Alves ◽

Patrik O. Bressan ◽

Ricardo E. Aguiar ◽

Wellington O. Santos ◽

...

Keyword(s):

Beef Cattle ◽

Skin Temperature ◽

Mobile Device ◽

Electronic Device ◽

Cattle Grazing ◽

Physiological Data ◽

Physiological Monitoring ◽

Physiological Variables ◽

Non Invasive ◽

Grazing Systems

In this work, we present a non-invasive electronic platform for physiological data acquisition on cattle grazing systems. The platform can be used for dairy and beef cattle to continuously monitor physiological variables such as skin temperature, heartbeats, and respiratory frequency. The set of sensors are coupled into a halter so that they are in touch with the animal's forehead. Users can monitor the data acquired by the electronic device using a mobile device (smartphone or tablet) and it visualizes important physiological parameters in the platform cloud system.

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Selection and Dietary Quality of Beef Cattle Grazing Smooth Bromegrass, Switchgrass, and Big Bluestem1

The Professional Animal Scientist ◽

10.15232/s1080-7446(15)31039-1 ◽

2007 ◽

Vol 23 (6) ◽

pp. 672-680 ◽

Cited By ~ 5

Author(s):

B.H. Kirch ◽

L.E. Moser ◽

S.S. Waller ◽

T.J. Klopfenstein ◽

G.E. Aiken ◽

...

Keyword(s):

Beef Cattle ◽

Cattle Grazing ◽

Dietary Quality ◽

Smooth Bromegrass

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Genotype by environment interaction for post-weaning weight gain, scrotal circumference, and muscling score of composite beef cattle in different regions of Brazil

Genetics and Molecular Research ◽

10.4238/2014.april.17.1 ◽

2014 ◽

Vol 13 (2) ◽

pp. 3048-3059

Author(s):

M.L. Santana Jr. ◽

J.P. Eler ◽

F.F. Cardoso ◽

L.G. Albuquerque ◽

J.C.C. Balieiro ◽

...

Keyword(s):

Weight Gain ◽

Beef Cattle ◽

Genotype By Environment Interaction ◽

Environment Interaction ◽

Weaning Weight ◽

Genotype By Environment ◽

Scrotal Circumference

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VIABILIDADE FINANCEIRA DA IRRIGAÇÃO EM SORGO FORRAGEIRO EM SISTEMA DE ASPERSÃO PARA BOVINOCULTURA DE CORTE

Irriga ◽

10.15809/irriga.2019v24n1p143-161 ◽

2019 ◽

Vol 24 (1) ◽

pp. 143-161

Author(s):

Jardel Henrique Kirchner ◽

Adroaldo Dias Robaina ◽

Marcia Xavier Peiter ◽

Rogério Ricalde Torres ◽

Wellington Mezzomo ◽

...

Keyword(s):

Weight Gain ◽

Beef Cattle ◽

Rio Grande ◽

Production Costs ◽

Daily Weight Gain ◽

Rio Grande Do Sul ◽

Forage Sorghum ◽

Financial Feasibility ◽

Santa Maria ◽

Sorghum Bicolor L

VIABILIDADE FINANCEIRA DA IRRIGAÇÃO EM SORGO FORRAGEIRO EM SISTEMA DE ASPERSÃO PARA BOVINOCULTURA DE CORTE JARDEL HENRIQUE KIRCHNER1; ADROALDO DIAS ROBAINA2; MARCIA XAVIER PEITER3; ROGÉRIO RICALDE TORRES4; WELLINGTON MEZZOMO5 E BRUNA DALCIN PIMENTA 1 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Nelsi Ribas Fritsch, nº 1111, bairro Esperança, Ibirubá, RS, Brasil, CEP: 98200-000, [email protected] 2 Eng. Agrônomo, Doutor, Professor Titular do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 3 Eng. Agrônoma, Doutora, Professora Associada do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 4 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Eng. João Viterbo de Oliveira, nº 3061, Zona Rural, Vacaria, RS, Brasil, CEP: 95219-899, [email protected] 5 Eng. Agrônomo, Mestre, Doutorando no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 6 Eng. Agrônoma, Mestra, Doutoranda no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected] 1 RESUMO A bovinocultura de corte mantida em pasto de sorgo forrageiro caracteriza-se como um dos principais meios de produção bovina no Rio Grande do Sul. Contudo, há irregularidade das precipitações e os produtores utilizam a irrigação como alternativa para o problema. Porém, há uma necessidade de determinação dos custos de produção e da viabilidade financeira da atividade. O trabalho objetivou avaliar a viabilidade financeira da irrigação em sorgo forrageiro para a bovinocultura de corte para diferentes expectativas de ganho de peso médio diário dos animais. Conduziu-se dois experimentos em 2015/2016 e 2016/2017 em Santa Maria/RS, e avaliou-se as produtividades de seis lâminas de irrigação por aspersão convencional (0, 25, 50, 75, 100 e 125 % da ETo), em quatro repetições, delineamento blocos ao acaso. Com as produtividades, gerou-se funções de produção e determinou-se a carga animal possível de ser alimentada para cada tratamento. Simulou-se três cenários de ganho de peso diário por animal (0,5, 1 e 1,5 kg-1animal-1 dia-1), e os custos de produção para cada condição hídrica estabelecida, além do retorno financeiro para cada cenário testado. Verificou-se viabilidade financeira para a maioria das situações simuladas avaliadas e que os custos dependem do regime das precipitações. Palavras chave: Sorghum bicolor L. (Moench), irrigação de pastagem, viabilidade financeira, custos de produção. KIRCHNER, J. H.; ROBAINA, A. D.; PEITER, M. X.; TORRES, R. R.; MEZZOMO, W.; PIMENTA, B. D. FINANCIAL FEASIBILITY OF IRRIGATION IN FORAGE SORGHUM IN ASPERSION SYSTEM FOR MEAT CATTLE BREEDING 2 ABSTRACT Beef cattle kept in pasture of forage sorghum is characterized as one of the main means of bovine production in Rio Grande do Sul. However, rains are irregulat and producers use irrigation as alternative to the problem. However, there is a need to determine production costs and financial viability of the activity. The objective of this work was to evaluate the financial feasibility of irrigation in forage sorghum for beef cattle for different expectations of average daily weight gain of the animals. Two experiments were conducted in 2015/2016 and 2016/2017 in Santa Maria / RS, and the yields of six conventional irrigation depths (0, 25, 50, 75, 100 and 125% of the ETo) were evaluated, in four replications, and randomized block design. With the productivities, production functions were generated and the possible animal load to be fed for each treatment was determined. Three scenarios were simulated of daily weight gain per animal (0.5, 1 and 1.5 kg-1animal-1day-1), and the production costs for each established water condition, in addition to the financial return for each scenario tested. Financial feasibility has been verified for most of the simulated situations evaluated and costs depend on the precipitation regime. Keywords: Sorghum bicolor L. (Moench), forage irrigation, financial viability, production costs.