Internal markers for predicting dry matter intake and digestibility in Santa Inês ewes on a pasture

2018 ◽  
Vol 65 (2) ◽  
pp. 75-85 ◽  
Author(s):  
Sheila V. Sousa ◽  
Marcos J. Araújo ◽  
Carlo A. T. Marques ◽  
Jacira N. C. Torreão ◽  
Lucas A. Lima ◽  
...  
Keyword(s):  
Dry Matter ◽  
Dry Matter Intake ◽  
Santa Inês ◽  
Internal Markers

scholarly journals Development of mathematical models to predict dry matter intake in feedlot Santa Ines rams

2013 ◽  
Vol 112 (1-3) ◽  
pp. 78-84 ◽  
Author(s):  
Pablo Almeida Sampaio Vieira ◽  
Luiz Gustavo Ribeiro Pereira ◽  
José Augusto Gomes Azevêdo ◽  
André Luiz Alves Neves ◽  
Mário Luiz Chizzotti ◽  
...  
Keyword(s):  
Mathematical Models ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Santa Inês

Effect of the anti bloat agent poloxalene on n-alkane concentration in cattle faeces

2000 ◽  
Vol 2000 ◽  
pp. 60-60
Author(s):  
R. Nuthall ◽  
S.M. Rutter ◽  
A.J. Rook
Keyword(s):  
Dry Matter ◽  
Dry Matter Intake ◽  
Feed Additive ◽  
Dietary Composition ◽  
Foam Formation ◽  
Agricultural Systems ◽  
Saturated Hydrocarbons ◽  
Herbage Intake ◽  
Cattle Faeces ◽  
Internal Markers

Current pressures to extensify agricultural systems are leading to more emphasis on incorporating legumes, such as white clover, into swards thus reducing the amount of fertiliser nitrogen used. Cattle fed clover rich diets often receive poloxalene (Bloat guard ®, Agrimin Limited) as a feed additive to prevent bloat. Poloxalene is a surfactant, reducing surface tension of bubbles caught in froth, and thus reducing foam formation in the reticulo-rumen. The n-alkane technique (Dove and Mayes 1991) to measure intake is widely used in grazing experiments. Alkanes are saturated hydrocarbons found in the waxy cuticle of plants, which are used as internal markers to estimate herbage intake and to determine dietary composition in grazing ruminants. Animals are typically dosed with a controlled release bolus (CaptecTM FERNZ, New Zealand) containing an even-chained synthetic alkane (C32). Mean daily dry matter intake is calculated using the assayed release rate of C32 and the concentrations of C32 and C33 in herbage and faeces (Dove and Mayes, 1991). Given that poloxalene is a surfactant, it could potentially interact with the n-alkanes and therefore invalidate the technique. The aim of this experiment was to investigate the effect of including poloxalene in the diet on the n-alkane concentration in faeces from dairy cattle.

Evaluation of internal and external markers to estimate faecal output and feed intake in sheep fed fresh forage

2019 ◽  
Vol 59 (4) ◽  
pp. 741 ◽  
Author(s):  
M. C. Mioto da Costa ◽  
L. C. V. Ítavo ◽  
C. C. B. Ferreira Ítavo ◽  
A. M. Dias ◽  
H. V. Petit ◽  
...  
Keyword(s):  
Dry Matter ◽  
Dry Matter Intake ◽  
Total Output ◽  
Brachiaria Brizantha ◽  
Once Daily ◽  
Faecal Output ◽  
Neutral Detergent Fibre ◽  
Acid Detergent Fibre ◽  
Ad Libitum ◽  
Internal Markers

The objectives of the present study were to estimate dry-matter intake and output of faeces using two external and four internal markers in sheep fed Brachiaria brizantha cv. Marandu on an ad libitum basis over 3- and 5-day periods. Six sheep fitted with ruminal cannulas were randomly assigned in a crossover design experiment to receive either of two treatments of external markers, namely titanium dioxide (TiO2) and chromic oxide (Cr2O3). Faecal output was obtained by total faecal collection and faecal grab sampling. Faeces were collected for 3- or 5-day periods, and, for each collection period, two sampling methods were compared; grab samples were collected directly in the rectum once daily, and a second sample was taken at the same time directly in faecal collection bags after having determined the daily total output of faeces. Faecal concentrations of the internal markers, indigestible dry matter, indigestible neutral detergent fibre, indigestible acid detergent fibre and indigestible acid detergent lignin (iADL), were determined. Faecal output was not accurately predicted with indigestible dry matter, indigestible neutral detergent fibre, indigestible acid detergent fibre and iADL. Dry-matter intake was predicted with iADL and TiO2 when faeces were collected for 5 days as grab samples once daily, or as total collection and with Cr2O3 when faecal grab samples were collected for 5 days. The results using external markers indicated that TiO2 is not a marker equivalent to Cr2O3 for estimating intake and faecal output. TiO2 was the only external marker to accurately estimate faecal output, independent of the method (total or grab) and time period (3 or 5 days) used; this suggests that TiO2 is the best marker tested for predicting the faecal output of sheep that are fed a diet of fresh Brachiaria brizantha (cv. Marandu) grass ad libitum.

1478 Using indigestible rare earth markers and internal markers to predict dry matter intake and residual feed intake

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 717-718
Author(s):  
K. A. Weld ◽  
L. E. Armentano
Keyword(s):  
Rare Earth ◽  
Feed Intake ◽  
Dry Matter ◽  
Residual Feed Intake ◽  
Dry Matter Intake ◽  
Internal Markers

scholarly journals 21 DIFFERENT SUCKLING REGIMENS AND RETURN TO POSTPARTUM CYCLIC OVARIAN ACTIVITY IN SANTA INÊS EWES

2013 ◽  
Vol 25 (1) ◽  
pp. 157
Author(s):  
N. G. Alves ◽  
I. J. Ascari ◽  
A. C. Alves ◽  
R. R. Lima ◽  
I. F. F. Garcia ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Dry Matter ◽  
Body Condition Score ◽  
The Body ◽  
Dry Matter Intake ◽  
Ovarian Activity ◽  
Early Weaning ◽  
Condition Score ◽  
Santa Inês

The aim of this study was to evaluate the effect of different suckling regimens on body condition and interval from lambing to onset of the cyclic ovarian activity in Santa Inês ewes. Thirty-two ewes were allocated to blocks according to parity, number of lambs, and body weight and submitted to 3 treatments: continuous suckling (n = 11 ewes, 13 lambs), controlled suckling (n = 10 ewes, 14 lambs) with 2 suckling periods per day for 1 h from Day 10 postpartum (pp), or early weaning (n = 11 ewes, 14 lambs) with total separation of the lambs from Day 10 pp. The animals were evaluated in the interval from Day 12 pp to first estrus or to Day 60 pp. Dry matter intake was evaluated daily. The body weight of ewes and lambs and body condition score (scale 1 = thin and 5 = fat) of ewes were evaluated at lambing and at every 6 days after. Lambs were weighed at weaning. Estrus was monitored twice daily with a teaser ram. Blood samples for progesterone measurement were collected and ovarian ultrasonography was done at intervals of 3 days from Day 12 pp to first estrus or to Day 60 pp. Dry matter intake was analyzed over time, considering 9 periods, with PROC MIXED of SAS (2008; SAS Institute Inc., Cary, NC, USA). Body weight, body condition score, interval from lambing to first ovulation, and weaning weight were analyzed using the GLM procedure, ANOVA, and an F-test. The intervals from lambing to first estrus and to follicles with a diameter ≥5 mm were analyzed considering a Poisson distribution and the percentage of estrus manifestation was analyzed considering a Bernoulli distribution, by generalized linear models, using PROC GENMOD. The dry matter intake did not differ (P > 0.05) among treatments (2.3 ± 0.1, 2.2 ± 0.0, and 1.6 ± 0.0 kg day–1), but it differed over time (P < 0.05). The body weight gain (3.3 ± 1.0, 3.0 ± 0.9, and 2.1 ± 1.4 kg), body condition score gain (0.2 ± 0.1, 0.2 ± 0.1, and 0.2 ± 0.1), percentage of estrus manifestation (63.6, 50.0, and 54.5%), interval from lambing to first estrus (45.0 ± 3.9, 44.0 ± 7.2, and 32.3 ± 5.4 days), follicle with a diameter ≥5 mm (31.0 ± 3.3, 33.9 ± 3.0, and 34.9 ± 4.5 days), and ovulation (38.0 ± 3.6, 35.6 ± 3.9, and 26.5 ± 3.2 days) did not differ among treatments (P > 0.05). The dry matter intake was correlated with body weight in ewes that were submitted to continuous suckling (r = 0.7; P < 0.01) and controlled suckling (r = 0.6; P < 0.01), but not in those submitted to early weaning (r = 0.2; P > 0.05). The body condition score was correlated with body weight in ewes submitted to continuous suckling (r = 0.8; P < 0.01), controlled suckling (r = 0.4; P < 0.01), and early weaning (r = 0.5; P < 0.01), and with dry matter intake in those submitted to continuous suckling (r = 0.4; P < 0.01). Weaning weight was lower (P < 0.05) in lambs subjected to early weaning (19.0 ± 1.0, 18.3 ± 1.0, and 15.2 ± 0.6 kg), but their health was not compromised. Continuous suckling did not delay the return to postpartum cyclic ovarian activity and did not influence the postpartum body condition of Santa Inês ewes and should be used by producers. The financial support of Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) is acknowledged.

Dietary supplementation for Santa Inês hair ewes on pasture at pre- and postpartum periods: dry matter intake, digestibility, milk production, and mineral metabolism

2018 ◽  
Vol 50 (8) ◽  
pp. 1903-1912 ◽  
Author(s):  
Sheila Vilarindo de Sousa ◽  
Marcos Jácome de Araújo ◽  
Tairon Panunzio Dias e Silva ◽  
Carlo Aldrovandi Torreão Marques ◽  
Jacira Neves da Costa Torreão ◽  
...  
Keyword(s):  
Milk Production ◽  
Dry Matter ◽  
Mineral Metabolism ◽  
Dietary Supplementation ◽  
Dry Matter Intake ◽  
Santa Inês

Consumo de Nutrientes e Perfil Metabólico de Cordeiros Confinados com Diferentes Teores de Soro de Leite em Pó na Dieta

UNICIÊNCIAS ◽  
2017 ◽  
Vol 21 (1) ◽  
pp. 7 ◽  
Author(s):  
Camila Cano Serafim ◽  
Fabiola Cristine De Almeida Rego ◽  
Jéssica Taboni Fabris ◽  
Janaina Fabbris Molina ◽  
Camila Roberta Lupo ◽  
...  
Keyword(s):  
Nutrient Intake ◽  
Dry Matter ◽  
Latin Square ◽  
Live Weight ◽  
Blood Parameters ◽  
Neutral Detergent Fiber ◽  
Dry Matter Intake ◽  
Soluble Carbohydrates ◽  
Santa Inês ◽  
Different Levels

O soro de leite em pó é um coproduto lácteo, que pode ser aproveitado na dieta de cordeiros recém-desmamados, com o intuito de estimular consumo de alimentos sólidos, por ser palatável e por possuir alto teor de carboidratos solúveis, que são rapidamente degradados no rúmen. O objetivo desse estudo foi avaliar os efeitos da inclusão de diferentes níveis de soro de leite em pó, em dietas de cordeiros confinados da raça Santa Inês, sobre o consumo dos nutrientes e os parâmetros sanguíneos desses animais. Os tratamentos realizados foram: 0, 5, 10 e 15% de níveis de inclusão na alimentação dos cordeiros, na matéria seca total da dieta. O tempo experimental foi de 69 dias. O delineamento experimental foi um quadrado latino, quatro por quatro, sendo quatro tratamentos e quatro períodos. Foram utilizados 4 animais. A dieta foi composta de volumoso e concentrado à base de milho e soja. Foram realizadas análises bromatológicas do alimento ofertado, sobras e fezes dos animais. As amostras de sangue para análise laboratorial foram colhidas no quinto dia de cada período. Os dados foram analisados pelo pacote estatístico SAS (versão 9.2). O consumo de matéria seca, em função do peso vivo animal não variou entre tratamentos (p>0,05), com média de 4,22%. O consumo de proteína bruta, extrato etéreo, fibra em detergente neutro e fibra em detergente ácido foram diferentes entre os tratamentos (p<0,05), com as seguintes médias 222, 40, 326 e 176g/dia, respectivamente. A inclusão alterou consumo de nutrientes e, também, os parâmetros sanguíneos dos animais.Palavras-chave: Consumo de Matéria Seca. Coproduto Lácteo, Triglicerídeos. Ureia.AbstractWhey powder is a dairycoproduct that can be used in the diet of recently weaned lambs in order to stimulate consumption of solid foods because it is palatable and has a high content of soluble carbohydrates that are rapidly degraded in the rumen. The objective of this study was to evaluate the effects of the inclusion of different levels of whey powder in confined lamb diets of Santa Inês breed on the nutrient intake and blood parameters of these animals. The treatments were: 0, 5, 10 and 15% inclusion levels in the lambs’ diet, in the total dry matter of the diet. The experimental time was 69 days. The experimental design was a Latin square, four by four, with four treatments and four periods. Four animals were used. The diet was composed of bulky and concentrated corn and soybean. Bromatological analyzes of the food offered, leftovers and the animals’ feces were carried out. Blood samples for laboratory analysis were collected on the fifth day of each period. The data were analyzed by the statistical package SAS (version 9.2). Dry matter intake as a function of live weight did not vary among treatments (p> 0.05), with an average of 4.22%. Crude protein, ethereal extract, neutral detergent fiber and acid detergent fiber were different among treatments (p <0.05), with the following means 222, 40, 326 and 176g / day, respectively. The inclusion altered nutrient intake and also the animals’ blood parameters.Keywords: Dry Matter Intake, Milk Coproduct, Triglycerides, Urea.

ACCEPTABILITY AND UTILIZATION OF GRADED LEVELS OF GMELINA ARBOREA AND CASSAVA PEELS CONCENTRATES IN WEST AFRICAN DWARF SHEEP

2015 ◽  
Vol 4 (2) ◽  
pp. 415-422
Author(s):  
Amoka Pius ◽  
Tawose O M
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Control Diet ◽  
Nutrient Digestibility ◽  
Dry Matter Intake ◽  
Gmelina Arborea ◽  
Leaf Meal ◽  
Dry Matter Digestibility ◽  
Inclusion Level ◽  
Cassava Peels

The nutritive value ,voluntary dry matter intake, and the nutrient digestibility of graded levels of Gmelina arborea and cassava peels concentrates in WAD sheep was investigated. Twelve WAD sheep aged 1-2 years old and weighting 14.00± 0.45 kg were used in a complete randomized design. Diets were formulated such that cassava peels was replaced with Gmelina arborea leaf meal at 0, 33.33, 66.67, 100% levels, designated as diets A, B, C, and D respectively. Diet without Gmelina arborea leaf meal was tagged the control diet. The concentrate feed was compounded to contain 16% CP. Diets with 33.33% inclusion level of Gmelina arborea had significantly (P<0.05) higher dry matter intake (DMI) 598.80g day-1, while the lowest DMI 425.00g day-1 was obtained in animals fed 100% inclusion level of Gmelina arborea. Crude protein intake (CPI) of animals fed diets with 33.33% inclusion levels of Gmelina arborea were significantly (P<0.05) highest, followed by 66.67% inclusion level and the least was observed in 0% inclusion level of Gmelina arborea. Dry matter digestibility (DMD) was significantly (P<0.05) different across the dietary treatments, animals placed on diets with 33.33% inclusion level had the highest DMD, followed by animals on diets with 66.67, 100 and 0% inclusion levels. CP digestibility (P<0.05) increased from 33.33% to 100% inclusion levels of Gmelina arborea leaf meal, the lowest CP digestibility was observed at 0% inclusion level. CF digestibility (P<0.05) increased from 33.33% to 100% inclusion levels of Gmelina arborea leaf meal, while the lowest CF digestibility was observed at 0% inclusion level. N intake increased significantly (P<0.05) with increase in the level of Gmelina arborea inclusion from 33.33% to 100%. N retention was significantly (P<0.05) different, diets with 33.33% Gmelina arborea inclusion had the highest value (64.36g day-1) followed by 66.67%, 100% and the least (52.64g day-1) was at 0% inclusion level of Gmelina arborea.  N balance values also followed the same trend. From the results of this study, it can be concluded that the inclusion of Gmelina arborea leaf meal in WAD rams diet was well tolerated without adverse effect on acceptability, intake and nutrient digestibility, and inclusion level of 33.33% is hereby recommended in ruminants diet for optimum performance and productivity.

Beef steers with average dry matter intake and divergent average daily gain have altered gene expression in the jejunum

2017 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
A. P. Foote ◽  
B. N. Keel ◽  
C. M. Zarek ◽  
A. K. Lindholm-Perry
Keyword(s):  
Gene Expression ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Dry Matter Intake ◽  
Beef Steers ◽  
Altered Gene Expression ◽  
Altered Gene ◽  
Daily Gain

Progressive inclusion of pearl millet herbage as a supplement for dairy cows fed mixed rations: Effects on methane emissions, dry matter intake, and milk production

2020 ◽  
Author(s):  
M. Civiero ◽  
R. Delagarde ◽  
A. Berndt ◽  
Jusiane Rosseto ◽  
M.N. de Souza ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Pearl Millet ◽  
Milk Production ◽  
Dry Matter ◽  
Methane Emissions ◽  
Dry Matter Intake ◽  
Progressive Inclusion
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