| Autor: |
Choldumrongkul, S., Ngampongsai, W., Kochapakdee, S., Chartdaeng, C. |
| Jazyk: |
angličtina |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Songklanakarin Journal of Science and Technology (SJST), Vol 29, Iss 3, Pp 707-714 (2007) |
| Druh dokumentu: |
article |
| ISSN: |
0125-3395 |
| Popis: |
A 2 x 2 x 2 factorial in completely randomized design was conducted to determine the effect of genotype of does (Thai native (TN) or 50% Anglo-Nubian (AN) crossbred), levels of concentrate supplementation(1 % body weight or ad libitum) and body condition of does (poor or good) on oestrus incidence, kidding rate and multiple birth rate of does. Does rotationally grazed on Paspalum plicatulum pasture for 4 weeks andwere supplemented with concentrate. The experiment was divided into 4 periods: 1) does run with a teaser for 105 days before mating to determine an oestrus incidence 2) does joined with bucks of the same genotypefor 45 days 3) does run with a teaser for 150 days during pregnancy and 4) does run with a teaser 90 days post-partum. Genotype, levels of concentrate supplementation and body condition of does did not significantlyaffect (P>0.05) kidding rate or multiple birth rate and average kidding rate and multiple birth rate of the does was 83.8 and 82.3%, respectively. Birth weight of kids from TN does was significantly lower (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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