Influence of rumen protein degradability on productive and reproductive performance in buffalo cows

Campanile, G., Di Palo, R., Infascelli, F., Gasparrini, B., Neglia, G., Zicarelli, F. and D'Occhio, M. J. (2003) Influence of rumen protein degradability on productive and reproductive performance in buffalo cows. Reproduction Nutrition Development, 43 6: 557-566. doi:10.1051/rnd:2004008

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Author Campanile, G.
Di Palo, R.
Infascelli, F.
Gasparrini, B.
Neglia, G.
Zicarelli, F.
D'Occhio, M. J.
Title Influence of rumen protein degradability on productive and reproductive performance in buffalo cows
Journal name Reproduction Nutrition Development   Check publisher's open access policy
ISSN 0926-5287
Publication date 2003
Sub-type Article (original research)
DOI 10.1051/rnd:2004008
Open Access Status File (Publisher version)
Volume 43
Issue 6
Start page 557
End page 566
Total pages 10
Place of publication Paris, France
Publisher E D P Sciences
Language eng
Abstract The present study aimed to ascertain the influence of crude protein (CP) digestibility in the rumen on the quantity and quality of milk production and reproductive performance, blood (BU) and milk (MU) urea, haematological profile and vaginal mucus urea, ammonia and potassium of buffalo cows. Lactating buffaloes (n = 84), 60 days in milk, were randomly subdivided into Group C (control, n = 42) and Group T (fed a diet supplemented with Aspergillus oryzae, n = 42). In three fistulated buffalo, the diet supplemented with Aspergillus oryzae showed a decrease (P < 0.01) in protein digestibility in the rumen (79.3 vs. 45.9%). No differences were registered in productive performance. Nine buffaloes not in oestrus during the dietary treatment (Groups T1 and C 1), 30 days in milk, were used to study the haematological profile and to determine milk urea and ammonia in the vaginal mucus. The animals in Group T1 had higher ammonia values in the blood (P < 0.01) but not in the vaginal mucus than Group C1. A relationship was found between MU and BU. MU was influenced by CP intake and dry matter intake. No differences between the treatments were observed in reproductive performance and the conception rate and calving interval were 37.9% and 41.4% (90 trial-day) and 449 and 419 days respectively in Groups T and C. Reproductive performance was not influenced by high levels of BU nor by blood ammonia levels, although the latter were higher in the group fed the diet supplemented with Aspergillus oryzae.
Keyword buffalo cow
protein digestibility in the rumen
blood
milk
vaginal mucus
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Agriculture and Food Sciences
 
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Created: Fri, 25 Jan 2008, 16:14:52 EST