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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| Format: | Thesis |
| Language: | English English |
| Published: |
2002
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| Online Access: | http://psasir.upm.edu.my/id/eprint/10581/1/FP_2002_8.pdf |
| _version_ | 1825944799438438400 |
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| 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 |
| collection | UPM |
| 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. |
| first_indexed | 2024-03-06T07:21:35Z |
| format | Thesis |
| id | upm.eprints-10581 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-04-21T17:56:37Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | upm.eprints-105812024-04-18T01:21:10Z http://psasir.upm.edu.my/id/eprint/10581/ Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups 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. 2002-02 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/10581/1/FP_2002_8.pdf Md. Alimuddin Talukder, Md.Azharul Islam Talukder (2002) Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups. Doctoral thesis, Universiti Putra Malaysia. Sahiwal cattle - Johore - Case studies English |
| spellingShingle | Sahiwal cattle - Johore - Case studies Md. Alimuddin Talukder, Md.Azharul Islam Talukder Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups |
| title | 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_short | Characterisation of Productivity Traits of Sahiwal - Friesian Breed Groups |
| title_sort | characterisation of productivity traits of sahiwal friesian breed groups |
| topic | Sahiwal cattle - Johore - Case studies |
| url | http://psasir.upm.edu.my/id/eprint/10581/1/FP_2002_8.pdf |
| work_keys_str_mv | AT mdalimuddintalukdermdazharulislamtalukder characterisationofproductivitytraitsofsahiwalfriesianbreedgroups |