Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups

Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups

The dairy industry in Malaysia is mainly dependent on imported milk and milk products. The self-sufficiency for dairy product is 4.5%. In an effort to boost the local dairy industry, the government through the Department of Veterinary Services embarked on a crossbreeding project using 50% Sahiwal...

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Main Author: Md. Alimuddin Talukder, Md.Azharul Islam Talukder
Format: Thesis
Language:English
English
Published: 2002
Subjects:
Sahiwal cattle - Johore - Case studies
Online Access:http://psasir.upm.edu.my/id/eprint/10581/1/FP_2002_8_A.pdf
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spelling my-upm-ir.105812011-05-04T08:01:47Z Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups 2002-02 Md. Alimuddin Talukder, Md.Azharul Islam Talukder The dairy industry in Malaysia is mainly dependent on imported milk and milk products. The self-sufficiency for dairy product is 4.5%. In an effort to boost the local dairy industry, the government through the Department of Veterinary Services embarked on a crossbreeding project using 50% Sahiwal - 50% Friesian crossbreds imported from Australia and New Zealand. Through inter se mating and backcrossing, a number of Sahiwal - Friesian crossbred groups with 50 - 75% Friesian genes have been produced. This study was carried out to evaluate some of the genetic and nongenetic factors influencing milk production and reproductive performances of these Sahiwal - Friesian breed groups. This study focused on the dairy unit at the Ladang Pusat Temakan Haiwan Air Hitam in lohor. Eight breed groups were evaluated, namely M50, M50-1, M50-2, M50-3, M56, M63, M75 and M75-1. Retrospective data on milk production an d female reproductive traits of 1585 cows, born between 1981 and 1999, were evaluated. The composition and quality of milk from 180 cows from six of the breed groups and at three stages of lactation was also analysed. M7S-1 had the highest mean for milk yield per day (MYD) (S.87 - 6.69 kg), milk yield l20 days (MYl20) (70S- 803 kg), total lactation milk yield (TLDM) (1678 kg), milk yield 30S days (MY30S) (1819 kg), lactation length (LL) (261 days), peak milk (PM) (9.93 kg) and days to peak milk (DPM) (49 days). It also had the shortest dry period (DP) (18S days). However, this breed group was not significantly different from M7S, MS6 and M50-3 for these traits. Maternal additive genetic effects of Friesian genes on MYD, MY120, MY305, TLDM, LL and PM were generally significant (P<0.05) and favorable. However, maternal heterosis was negative (P<0.05) for TLDM, LL and DPM. Individual heterosis was significant (P<0.05) only for MY30S. Individual and maternal additive and individual heterotic effects were non significant for DPM and DP. The inverse polynomial function gave a better fit to the lactation data compared to the gamma curve for the breed groups (R2: 0.27 - 0.54 vs 0.11 - 0.37). With respect to milk composition and quality the effect of breed group was significant (P<0.05) only for total acidity (TA). The quality of milk from these Sahiwal - Friesian breed groups met the required standard. Sahiwal cattle - Johore - Case studies 2002-02 Thesis http://psasir.upm.edu.my/id/eprint/10581/ http://psasir.upm.edu.my/id/eprint/10581/1/FP_2002_8_A.pdf application/pdf en public phd doctoral Universiti Putra Malaysia Sahiwal cattle - Johore - Case studies Faculty of Agriculture English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
topic Sahiwal cattle - Johore - Case studies
spellingShingle Sahiwal cattle - Johore - Case studies


Md. Alimuddin Talukder, Md.Azharul Islam Talukder
Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups
description The dairy industry in Malaysia is mainly dependent on imported milk and milk products. The self-sufficiency for dairy product is 4.5%. In an effort to boost the local dairy industry, the government through the Department of Veterinary Services embarked on a crossbreeding project using 50% Sahiwal - 50% Friesian crossbreds imported from Australia and New Zealand. Through inter se mating and backcrossing, a number of Sahiwal - Friesian crossbred groups with 50 - 75% Friesian genes have been produced. This study was carried out to evaluate some of the genetic and nongenetic factors influencing milk production and reproductive performances of these Sahiwal - Friesian breed groups. This study focused on the dairy unit at the Ladang Pusat Temakan Haiwan Air Hitam in lohor. Eight breed groups were evaluated, namely M50, M50-1, M50-2, M50-3, M56, M63, M75 and M75-1. Retrospective data on milk production an d female reproductive traits of 1585 cows, born between 1981 and 1999, were evaluated. The composition and quality of milk from 180 cows from six of the breed groups and at three stages of lactation was also analysed. M7S-1 had the highest mean for milk yield per day (MYD) (S.87 - 6.69 kg), milk yield l20 days (MYl20) (70S- 803 kg), total lactation milk yield (TLDM) (1678 kg), milk yield 30S days (MY30S) (1819 kg), lactation length (LL) (261 days), peak milk (PM) (9.93 kg) and days to peak milk (DPM) (49 days). It also had the shortest dry period (DP) (18S days). However, this breed group was not significantly different from M7S, MS6 and M50-3 for these traits. Maternal additive genetic effects of Friesian genes on MYD, MY120, MY305, TLDM, LL and PM were generally significant (P<0.05) and favorable. However, maternal heterosis was negative (P<0.05) for TLDM, LL and DPM. Individual heterosis was significant (P<0.05) only for MY30S. Individual and maternal additive and individual heterotic effects were non significant for DPM and DP. The inverse polynomial function gave a better fit to the lactation data compared to the gamma curve for the breed groups (R2: 0.27 - 0.54 vs 0.11 - 0.37). With respect to milk composition and quality the effect of breed group was significant (P<0.05) only for total acidity (TA). The quality of milk from these Sahiwal - Friesian breed groups met the required standard.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Md. Alimuddin Talukder, Md.Azharul Islam Talukder
author_facet Md. Alimuddin Talukder, Md.Azharul Islam Talukder
author_sort Md. Alimuddin Talukder, Md.Azharul Islam Talukder
title Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups
title_short Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups
title_full Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups
title_fullStr Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups
title_full_unstemmed Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups
title_sort characterisation of productivity traits of sahiwal - friesian breed groups
granting_institution Universiti Putra Malaysia
granting_department Faculty of Agriculture
publishDate 2002
url http://psasir.upm.edu.my/id/eprint/10581/1/FP_2002_8_A.pdf
_version_ 1747811155073564672

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