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Titolo:
REPRODUCTIVE-PERFORMANCE OF SAANEN BUCKS UNDER TROPICAL CLIMATE
Autore:
AHMED MMM; MAKAWI SA; GADIR AA;
Indirizzi:
UNIV KHARTOUM,FAC ANIM PROD,POB 32 KHARTOUM SUDAN FAC VET SCI KHARTOUM SUDAN UNIV JUBA KHARTOUM SUDAN
Titolo Testata:
Small ruminant research
fascicolo: 1-2, volume: 26, anno: 1997,
pagine: 151 - 155
SICI:
0921-4488(1997)26:1-2<151:ROSBUT>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Keywords:
SAANEN BUCKS; TROPICAL CLIMATE; SEMEN QUALITY;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
M.M.M. Ahmed et al., "REPRODUCTIVE-PERFORMANCE OF SAANEN BUCKS UNDER TROPICAL CLIMATE", Small ruminant research, 26(1-2), 1997, pp. 151-155

Abstract

Reproductive performance of six imported Saanen bucks was studied under tropical climatic conditions. The reaction time, measured from the moment the buck was presented to the female until ejaculation was accomplished, averaged 61.9 +/- 7.3 s. It was higher in autumn and winter than summer. Average ejaculate volume was 0.77 mi. Pooled seminal volume when repeated collections were performed was higher in autumn than other seasons. Average spermatozoa concentration was 2.77 x 10(9) ml(-1). Average mass activity was 3.19; 68.57% of the spermatozoa were active, 15.5% were dead and 8.7% abnormal. The best semen quality was obtained in autumn and the poorest in summer. The percentage of spermatozoa that survived freezing-thawing was highest in autumn and winter than in summer. (C) 1997 Elsevier Science B.V. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 08:29:03