Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)

Frequency :

Monthly (January, February, March, April, May, June, July, August, September, October, November and December)

Indexing Services :

Science Citation Index Expanded, BIOSIS Preview, ISI Citation Index, Biological Abstracts, Scopus, AGRICOLA, Google Scholar, CrossRef, CAB Abstracting Journals, Chemical Abstracts, Indian Science Abstracts, EBSCO Indexing Services, Index Copernicus

Submit

Indian Journal of Animal Research, volume 45 issue 2 (june 2011) : 139 - 142

EFFECT OF NON-GENETIC FACTORS ON WEEKLY TEST DAY MILK YIELDS AND FIRST LACTATION TRAITS IN SAHIWAL CATTLE

V.B. Dongre, R.S. Gandhi, Avtar Singh, T.V. Raja, R.K. Singh1

Affiliations

¹National Dairy Research Institute, Karnal – 132 001, India.

Submitted|
First Online |
doi

Cite article:- Dongre V.B., Gandhi R.S., Singh Avtar, Raja T.V., Singh1 R.K. (2024). EFFECT OF NON-GENETIC FACTORS ON WEEKLY TEST DAY MILK YIELDS AND FIRST LACTATION TRAITS IN SAHIWAL CATTLE. Indian Journal of Animal Research. 45(2): 139 - 142. doi: .

ABSTRACT

A total of 577 sahiwal Cattle maintained at National Dairy Research Institute, Karnal were analyzed to study the effect of period, season and age at first calving on first lactation traits. The least squares means for first lactation 305 day, age at first calving and first service period were 1846.55 ± 44.31 kg, 1118.441 ± 5.259 days and 170.14 ± 8.06 days, respectively. Effect of period was highly significant (Peekly test day yields was highly significant (Pwere lowest for the heifers calving for the first time at an early age of 900 days or less for all the test day milk yields.

KEYWORDS

REFERENCES

Bajetha, G. (2006). Sire evaluation of Sahiwal and crossbred cattle. Ph. D Thesis, GBPAUT, Pantnagar, India.
Debbarma, M. (2010). Genetic analysis of test day milk yield in Sahiwal cattle. M.V.Sc Thesis, NDRI, Karnal, India.
Harvey, W. R. (1987). Least squares analysis of data with unequal subclass numbers. ARS H-4, USDA, Washington D.C.
Kannan, D. S. and Gandhi, R. S. (2004). Influence of non-genetic factors on lifetime traits in Sahiwal cattle. Indian Journal of Dairy Science, 57(3): 185-187.
Kramer, C. R. (1957). Extension of multiple range tests to group correlated means. Biometrics. 13: 13-18.
Raja, T. V. (2010). Part lactation records for Sahiwal sire evaluation. Ph. D. Thesis, NDRI, Karnal, India.
Shah, S. I. et al. (1982). Comparative production performance of pure and crossbred Sahiwal cows under subtropical environment. Pakistan Veterinary Journal, 2(4): 176-178.
Tomar, A. K. et al. (1996). First lactation performance of Holstein, Sahiwal and their half-breds in Tarai region of Northern India. Indian Journal of Animal Research, 30 (2): 129-133.

Disclaimer :

All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Copyright :

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Reviewed By

Share options

Editorial Board

View all (0)

EFFECT OF NON-GENETIC FACTORS ON WEEKLY TEST DAY MILK YIELDS AND FIRST LACTATION TRAITS IN SAHIWAL CATTLE

ABSTRACT

KEYWORDS

REFERENCES

Reviewed By

In this Article

APC

Publish With US

Become a Reviewer/Member

Open Access

Products and Services

Support and Policies

Editorial Board