Genotype influencing yield and milk composition in different dairy production systems
Journal Title: Scientific Journal of Biological Sciences - Year 2015, Vol 4, Issue 1
Abstract
The milk yield and milk composition of dairy animals are influenced by a large number of factors. Generally, these factors are based on genetic and non-genetic differences between dairy animals. While the genetic potential of an animal is fixed at conception, non genetic factors such as nutrition, management, milking frequency, rearing methods, stage of lactation, etc. determine whether genetic potential is attained. Therefore, the maximum marketable milk yield with different fat and protein content is desirable to producers to increase farm profitability and can be affected by choice of appropriate genotype. The present discussion explores the consequences of choice of genotype in dairy production enterprises for the milk yield and composition. The discussion points to the fact that genotype affect either yield or milk composition during the entire lactation. However, across genotypes fat and protein yields are affected by both the quantity of milk produced and fat or protein percentages in the milk.
Authors and Affiliations
N. Assan| Zimbabwe Open University, Department of Agriculture Management, Faculty of Science, Bulawayo Region, Box 3550, Bulawayo, Zimbabwe.
Keywords
Related Articles
- EP ID EP1115
- DOI 10.14196/sjbs.v4i1.1791
- Views 463
- Downloads 38
Occurrence of deoxynivalenol in cereals and cereal based products: a short review
During recentdecades, the contamination of cereal grains with toxic metabolites of Fusariumspecies has been increasingly documented. Deoxynivalenol (DON) is one of themost common trichothecene toxins produced by F. grami...
Some biological aspect of carasobarbus luteus (Heckel, 1843) in hoor al-azim wetland
The Population Dynamics and status of Hemeri (Carasobarbus luteus) in Hoor Al-azim wetland (Khuzestan provinces, Iran) were investigated to derive information required for their management. During this study from 2011 to...
Antimicrobial activity and biosynthesis of nanoparticles by endophytic bacterium inhabiting Coffee arabica L.
The interface between endophytes and nanomaterials is a relatively new and unexplored area the present study evaluates screening of bacterial endophytes from surfaced sterilized leaf and stem segments of agro economical...
An histochemical study of the effects of immunosuppressive drug azathioprine on the cytoarchitecture of the testes of adult wistar rats (rattus norvegicus)
In this study weemployed some histochemical techniques to evaluate the effect of ascorbic acidon azathioprine-induced alterations in the testis of adult Wistar rats. Maleadult Wistar rats (n=30) with mean weight 210±2.65...
Haematologic and Biochemical Indices of Plasmodium falciparum Infected Inhabitants of Owerri, Imo State, Nigeria
The present study seeks to investigate changesin haematologic and biochemical indices of moderately P. falciparum infectedmale inhabitants of Owerri Municipality. Haematologic and biochemical indiceswere estimated by spe...