FR 35. Environmental factors effect on seasonality of calving in bufaloes

  • Nestor Montiel La Universidad del Zulia, Venezuela
  • Nidia Rojas La Universidad del Zulia, Venezuela
  • Francisco Angulo La Universidad del Zulia, Venezuela
  • Adirmo Rafael Hernandez Fernandez UNESUR
  • J. Zuleta La Universidad del Zulia, Venezuela
  • N. Cahuao La Universidad del Zulia, Venezuela
  • I. Torres La Universidad del Zulia, Venezuela

Abstract

One thousand one hundred seventy three records of births of a buffaloes herd were studied in order to evaluate calving seasonalilty (EP) percentage aforesaid in a very dry tropical environment. It was used a variance analysis and following factors were considered: Enviromental: Years (Y): 1991 (A1); 92 (A2); 93 (A3); 94 (A4); 95 (A5) and 96 (A6); seasons (E): January-April= E1; May-August= E2 and September-December= E3; climatology condition (CC): [temperature (T), precipitation (Pr), humidity (Hr) and hours of daylight (Hl). The results obtained indicated that the (E) and (CC) affected (P<.0001) to (EP). The average for (EP) (1991-1996) was 5.86 % for (E1); 11.54 % for (E2) and 82.77 % for (E3). The average due to the year (A) was: for (A1) = 0.0 % ; 33.10 % and 66.89 % for (E1), (E2) and (E3) respectively ; for (A2)= 5.23 % ; 0.58 % and 94.18 % for (E1), (E2) and (E3) respectively; for (A3)= 10.05 %; 7.10 % and 82.84 % for (E1), (E2) and (E3) respectively; for (A4)= 9.13 %; 10.50 % and 80.36 % for (E1), (E2) and (E3) respectively ; for (A5)= 3.70 %; 6.46 % and 89.81 % for (E1), (E2) and (E3) respectively and for (A6)= 5.95 % ; 11.50 % and 82.53 % for (E1), (E2) and (E3) respectively. It is concluded that from 1991 to 1996 was a marked tendency to natural synchronization of buffaloes at the climatology condition that has taken the calving seasonality (E3).

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Published
2005-10-03
How to Cite
Montiel, Nestor, Nidia Rojas, Francisco Angulo, Adirmo Rafael Hernandez Fernandez, J. Zuleta, N. Cahuao, and I. Torres. 2005. “FR 35. Environmental Factors Effect on Seasonality of Calving in Bufaloes”. Archivos Latinoamericanos De Producción Animal 5 (3). https://ojs.alpa.uy/index.php/ojs_files/article/view/300.