Correlation between Intake and Feeding Behavior of Holstein Calves Fed Diets Supplemented with Pellets and Mash
Journal Title: Journal of Experimental Agriculture International - Year 2015, Vol 7, Issue 6
Abstract
The objective was to evaluate the correlation between behaviour al and intake variables of Holstein calves fed pellets and meal. Twelve pure Holstein calves with initial average age of 10 days and weight of 27.5 kg were used; The experimental design used in this study was a 2 x 2 factorial design (two types of feed and two feeding stages lactation and post-lactation periods), with six repetitions. Was found significant effects the time allocated to eating, rumination and resting. The data concerning the efficiency of feeding and rumination, total chewing time, number of ruminal boluses, rumination time/bolus and the number of chews per cud/bolus and discretization of the time series. There was a moderate positive correlation between the variable behaviour: dry matter per bolus, number of discrete eating and resting periods and the variable of dry matter intake (DMI). There was a strong positive correlation between the variables of behaviour: total chewing time, NDF/BOLUS, ADF/ BOLUS and neutral detergent fiber (NDF) and acid detergent fiber (ADF) intake variables. There was a negative moderate correlation between the behaviour variable TRP (time resting period) and the NDF and ADF intake variables. According to the correlations found in this study, between the behaviour aspects and intake of NDF and ADF can support studies aimed to the formulation of diets supplemented based the understanding on behaviour of food intake by animals.
Authors and Affiliations
R. R. Silva, A. C. Oliveira, G. G. P. Carvalho, F. F. Da Silva, F. B. L. Mendes, V. V. S. De Almeida, L. B. O. Rodrigues, A. A. Pinheiro, A. P. G. Silva, J. W. D Silva, M. M. Lisboa
Efficacy of Ethanolic Leaf Extract of Chromolaena odurata in Controlling Sitophilus zeamais in Stored Maize
Sitophilus zeamais Motschulsky is among the important pests which attack stored maize. It is listed in addition to Prostephanus truncatus as the two most damaging species of maize in West Africa. In Ghana about 15% of ma...
Variability in Number of Seedling Potentials for Final Yield Evaluation in Rice (Oryza sativa L.)
Five lowland rice genotypes obtained from International Institute of Tropical Agriculture (IITA) Ibadan were grown during the rainy season of 2013/2014 to study factor analysis for yield and its components in rice (Oryza...
Use of Selected Herbicides and Application Methods for Tolerance to Tifton 85 Bermudagrass [Cynodon dactylon (L.) Pers.]
Aims: To evaluate forage tolerance of Tifton 85 bermudagrass to selected pasture herbicides using two application methods: broadcast (BRD) and individual plant treatments (IPT). Study Design: A randomized complete bloc...
Impact of Foliar Application of Growth Regulators and Micronutrients on the Performance of Darjeeling Mandarin
Impact of Foliar Application of Growth Regulators and Micronutrients on the Performance of Darjeeling Mandarin
Synergistic Effects of Wood Ash and Essential Oil on Fecundity, Pupal Eclosion and Adult Mortality of Callosobruchus maculatus (Coleoptera: Bruchidae) Cowpea Seed Weevil
Aims: The use of residual synthetic chemicals, although effective against stored product pests, has led to environmental degradation. However, the risk of target pests developing resistance to insecticides in addition to...