Rajoriya, Ravi; Tomar, S. S.; Saha, D. N.; Rajoriya, Shweta; Kumar, Amit
April 2015
Indian Journal of Veterinary Sciences & Biotechnology;2015, Vol. 10 Issue 4, p32
Academic Journal
A total of 599 records of lactation period on 191 Gir cows maintained at Kasturba Gandhi Memorial Trust, Indore, M. P. over a period of 36 years (1974-2009) were analyzed by least squares technique of fitting constants to estimate the effect of sire, period of calving, season of calving, parity and inbreeding. The overall least squares mean of lactation period was found to be 303.28 ± 5.67 days. The results revealed that sire (p<0.05), period of calving (p<0.01), parity (p<0.01) and level of inbreeding (p<0.01) had significant effect on lactation period while the effect of season of calving was non-significant. Inbred cows were found to have significantly shorter lactation period as compared to non-inbred cows. Thus, it can be inferred that inbreeding had deteriorating effect on lactation period in the present herd and hence it should be avoided by formulating proper breeding plan along with other ameliorative managerial practices.


Related Articles

  • EFFECT OF INBREEDING AND SOME OTHER FACTORS ON LACTATION LENGTH IN MALVI COWS. Sharma, Harish; Tomar, S. S.; Kumar, Amit // Indian Journal of Veterinary Sciences & Biotechnology;2015, Vol. 10 Issue 4, p36 

    The data for the present investigation pertained to 1647 observations of lactation length (LL) on Malvi cattle maintained at Govt. Cattle Breeding Farm, Agar, District Shajapur (M.P.), covering a period of 48 years from 1962 to 2009. The least squares analysis of variance revealed the mean...

  • Estimates of Genetic Parameters and Trends of Lactation Performance Traits of Deoni Cattle. Shingare, V. M.; Chauhan, D. S.; Bhise, B. R.; Ghosh, Nilotpal // Theriogenology Insight;Aug2015, Vol. 5 Issue 2, p69 

    Data on 114 Deoni cows maintained at Cattle Cross Breeding Project, Vasantrao Naik Marathwada Agriculture University, Parbhani over a period of 25 years were used for the present investigation. The data were subjected to assess the effect of period of calving, season of calving, lactation order...

  • ESTIMATION OF GENETIC TRENDS FOR ECONOMIC TRAITS IN CROSSBRED CATTLE BY USING REGRESSION METHODS. Chaudhari, M.; Kumar, R.; Khanna, A. S.; Dalal, D. S.; Khanna, S.; Goyal, J. // Indian Journal of Animal Research;Dec2014, Vol. 48 Issue 6, p527 

    The present study was conducted on 782 crossbred cows sired by 35 bulls, maintained over the period from 1985 to 2009. The data were analyzed to estimate genetic, phenotypic and environmental changes in characters of economic importance which might have taken place during the several years of...

  • Milk production of dairy cows as affected by the length of the preceding dry period. Useni, B. A.; Muller, C. J. C.; Cruywagen, C. W. // South African Journal of Animal Science;2014 Supplement 1, Vol. 44 Issue 5, pS21 

    The objective of the study was to determine the effect of the duration of the dry period (DP) on the milk yield and milk composition during the following lactation. Milk performance records of 561 Holstein cows, with a previous DP from the Elsenburg Research Farm obtained from the National Milk...

  • Factors affecting weight and age at first calving, first lactation milk yield in Gir cows. Singh, Basdev; Sawant, Pushkraj; Sawant, Dhruvaraj; Todkar, Sachin; Jain, Richa // Indian Journal of Animal Research;Oct2016, Vol. 50 Issue 5, p804 

    The present study was undertaken on data of 113 Gir cows maintained at Kasturba Gram Dairy Farm, Indore, Madhya Pradesh, India over a period of 18 years from 1995 to 2012, based on age at first calving. The overall means for weight at first calving (WFC), age at first calving (AFC), and first...

  • EFFECT OF AGE AT FIRST CALVING ON LACTATION MILK YIELD AND LACTATION LENGTH. Gatchearle, P. L.; Mitkari, K. R.; Mule, R. S.; Baswade, S. V.; Adangale, S. B. // Indian Journal of Animal Research;Sep2009, Vol. 43 Issue 3, p228 

    Data on 122 calvings from interse progeny of Holstein Friesian X Deoni (HF X D) breed maintained at Cattle Cross Breeding Project, Marathwada Agriculture University, Parbhani (MS) of 12 years period was utilized to study the least square analysis of variance. The effect of age at first calving...

  • Association of Some Physiological Factors and Milk Performance in Chinese Holstein. Xiuxin Zhao; Rongling Li; Jinming Huang; Jianbin Li; Minghai Hou; Jifeng Zhong // Asian Journal of Animal & Veterinary Advances;Dec2012, Vol. 7 Issue 12, p1356 

    In an effort to determine the effect of physiological factors on milk production, a total of 13889 lactation records for 10544 Chinese Holstein cows from 2005-2011 year were collected for association analysis. Physiological information included age at first calving (AFC), milk peak day (MPD),...

  • EFFECT OF SOME GENETIC AND NONGENETIC FACTORS ON DRY PERIOD IN GIR COWS. Rajoriya, Ravi; Tomar, S. S.; Saha, D. N.; Rajoriya, Shweta; Kumar, Amit // Indian Journal of Field Veterinarians;2014, Vol. 10 Issue 2, p82 

    A total of 599 records of dry period on 191 Gir cows maintained at Kasturba Gandhi Memorial Trust, Dairy Farm, Kasturbagram Indore (M.P.) over a period of 36 years from 1974 to 2009 were analyzed by least squares technique using mixed model maximum likely hood computer programme to estimate the...

  • Seasonal Influences on Milk Yield and Composition Dynamics during a Normal Lactation in Dairy Cows: Milk Yield, Fat and Protein Precentage. Baul, Simona; Cziszter, Ludovic-Toma; Acatincai, Stelian; Gavojdian, Dinu; Erina, Silvia; Marcu, Adela; Buzamat, Genoveva; Răducan, Gabriel George // Scientific Papers: Animal Science & Biotechnologies / Lucrari St;2014, Vol. 47 Issue 1, p260 

    Researches were made on 125 lactations from Romanian Black Spotted cows and aimed to study the evolution of the interval between calving on milk yield and quality. Data were recorded and statistically analyzed by means of ANOVA / MANOVA determining the average values and dispersion indices....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics