scholarly journals Review: Converting nutritional knowledge into feeding practices: a case study comparing different protein feeding systems for dairy cows

animal ◽  
2018 ◽  
Vol 12 ◽  
pp. s457-s466 ◽  
Author(s):  
H. Lapierre ◽  
M. Larsen ◽  
D. Sauvant ◽  
M.E. Van Amburgh ◽  
G. Van Duinkerken
Keyword(s):  
Dairy Cows ◽  
Feeding Practices ◽  
Nutritional Knowledge ◽  
Protein Feeding ◽  
Feeding Systems

CASE STUDY: Evaluation of Different Cooling Systems in Lactating Heat-Stressed Dairy Cows in a Semi-Arid Environment

2007 ◽  
Vol 23 (5) ◽  
pp. 546-555 ◽  
Author(s):  
R. Burgos ◽  
L.J. Odens ◽  
R.J. Collier ◽  
L.H. Baumgard ◽  
M.J. VanBaale
Keyword(s):  
Dairy Cows ◽  
Arid Environment ◽  
Cooling Systems ◽  
Study Evaluation ◽  
Semi Arid

Rationale of feeding systems for lactating dairy cows

1990 ◽  
Vol 57 (2) ◽  
pp. 151-164 ◽  
Author(s):  
C. Lewis Johnson ◽  
C. Lang Tran
Keyword(s):  
Integral Equation ◽  
Dairy Cows ◽  
Time Course ◽  
Equation Approach ◽  
Lactating Dairy Cows ◽  
Integral Equation Approach ◽  
Biological Concepts ◽  
Feeding Regimen ◽  
Lactation Cycle ◽  
Feeding Systems

SummaryManipulations of the lactation cycle are achieved through nutritional regimens and generally result in a restriction of the physiological lactation cycle. Most models of lactation used in management programmes only describe the average time course of lactation for groups of cows on a given feeding regimen. This is inadequate for the variety of feeding systems in use on British farms. In the present paper several existing models of lactation have been critically evaluated. An integral equation approach has been developed to rationalize experimental observations and currently accepted biological concepts.

scholarly journals A New Low Protein Feeding Strategy for Enhancing Nitrogen Utilization in Lactating Dairy Cows

2018 ◽  
Vol 09 (02) ◽  
Author(s):  
Soheila Ebrahimi ◽  
Seyed Hadi Ebrahimi ◽  
Abbas Ali Naserian ◽  
Reza Valizadeh
Keyword(s):  
Dairy Cows ◽  
Feeding Strategy ◽  
Nitrogen Utilization ◽  
Low Protein ◽  
Lactating Dairy Cows ◽  
Protein Feeding

scholarly journals Indicators of resilience during the transition period in dairy cows: A case study

2018 ◽  
Vol 101 (11) ◽  
pp. 10271-10282 ◽  
Author(s):  
I.D.E. van Dixhoorn ◽  
R.M. de Mol ◽  
J.T.N. van der Werf ◽  
S. van Mourik ◽  
C.G. van Reenen
Keyword(s):  
Dairy Cows ◽  
Transition Period

Comparison of Calan gate and easy feed systems on the intake of dairy cows

2002 ◽  
Vol 2002 ◽  
pp. 114-114
Author(s):  
C.P. Ferris ◽  
T.W.J. Keady ◽  
F.J. Gordon ◽  
D.J. Kilpatrick
Keyword(s):  
Dairy Cows ◽  
Type System ◽  
Feed System ◽  
Negative Effect ◽  
Daily Allowance ◽  
The Uk ◽  
Research Centres ◽  
Gain Access ◽  
Feed Unit ◽  
Feeding Systems

In many Research Centres in the UK, dairy and beef cattle access their daily allowance of forage, and perhaps concentrates, through Calan gate type feeding systems. As up to four animals may share one feed unit in these systems, only a proportion of animals can gain access to feed at any one time. This may have a negative effect on food intake and subsequent animal performance. The present study was undertaken to evaluate the effects on intake from offering food through a Calan gate type system, compared to a conventional easy feed system.

The responses of high and medium merit dairy cows to diets differing in grass silage: concentrate ratios, during early lactation

1996 ◽  
Vol 1996 ◽  
pp. 5-5
Author(s):  
C.P. Ferris ◽  
F.J. Gordon ◽  
D.C. Patterson ◽  
C.S. Mayne
Keyword(s):  
Dairy Cows ◽  
Milk Yield ◽  
Dairy Herd ◽  
Yield Potential ◽  
Genetic Merit ◽  
The Past ◽  
Grass Silage ◽  
The Uk ◽  
Yield Responses ◽  
Feeding Systems

The genetic merit of the UK dairy herd is increasing rapidly and this trend is likely to continue for the forseeable future. With cows of higher milk yield potential and higher nutrient requirements, feeding systems developed in the past with medium genetic merit animals, may now need to be adapted to meet the needs of high genetic merit animals if nutrition x genotype interactions exist. This would be particularly true to increasing proportion of concentrates in grass silage based diets. This study was undertaken to compare the milk yield responses of high and medium merit dairy cows.

P4337Construction and validation of the instrument “nutritional knowledge and feeding practice scale – QCPA” – for children, 7 to 11 years

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
A B S Bozzetto-Silva ◽  
A Piccoli ◽  
C S D R Dal Ri ◽  
L C P Pellanda
Keyword(s):  
Internal Consistency ◽  
Intraclass Correlation ◽  
Feeding Practices ◽  
Face Validity ◽  
Feeding Practice ◽  
Nutritional Knowledge ◽  
Consistency Analysis ◽  
Cronbach’S Alpha ◽  
Cronbach's Alpha ◽  
Multidisciplinary Group

Abstract Introduction The increase in the prevalence of obesity is one of the major public health problems. There is a weak relationship between nutritional knowledge and feeding practices. Studies have evaluated that the associations between obesity and the level of nutritional knowledge and feeding practices in children are scarce. The evaluation of nutritional knowledge and feeding practices should be carried out using validated instruments. Study showed the need to improve the instruments of habit research and feeding practices in children for better evaluation. Objectives: To develop and validate an instrument about nutritional knowledge and feeding practices for use in children from 7 to 11 years, based on the Food Guide for the Brazilian Population. Methods The study filled all the steps expected to validate an instrument: review on the subject, instrument elaboration, Content's Validity (Content Validity Index – CVI) with two groups of judges: 1° – nutritionists and, after adjustments, 2° – multidisciplinary group), FACE Validity, reliability analysis [Intraclass Correlation Coefficient (ICC) and Kappa (K), Internal Consistency Analysis - Cronbach's Alpha] and Validity of Construct (Exploratory Factorial Analysis - EFA) The sample was calculated, considering, at least, 10 subjects for each question of the questionnaire. Results Validation occurred in a final sample of 453 children, 46.4% boys and 53.6% girls, mean age 9.45 (SD = 1.44). The validity of the content presented CVI ≥0.80 for relevance in 62.3% of items for nutritionist group and 100% of items for multidisciplinary group), clarity (49.4%, 91.8%), Pertinence (58.8%, 98.4%), respectively. The test-retest had a level of agreement of 84.3% and K=0.740 for the Knowledge Dimension; and the ICC=0.754 for the Practices Dimension. Cronbach's Alpha, for internal consistency analysis, was α=0.589 for the Knowledge Dimension and α=0.618 for the Practices Dimension. The EFA with variance of 47.01% (7.81% at 10.85%), with varimax rotation, it defined five factors for the Practices Dimension: Involvement; Healthy Eating and drinking; Unhealthy eating and drinking; Basic food consumption; Attitudes during the meal. Conclusion The instrument QCPA demonstrated validity and reliability to evaluate nutritional knowledge and practices in children aged 7 to 11 years.

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