Embryo mortality and its relation with the phase of follicular development at mating in alpaca

W. Huanca; M.P. Cervantes; T. Huanca

Embryo mortality and its relation with the phase of follicular development at mating in alpaca

In: South American camelids research

Authors:

W. Huanca

W. Huanca ¹Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, San Marcos University, P.O. Box 03–5034, Salamanca, Lima, Peru; whuanca@appaperu.org

Search for other papers by W. Huanca in
Current site
Google Scholar
PubMed

M.P. Cervantes

M.P. Cervantes ¹Laboratory of Animal Reproduction, Faculty of Veterinary Medicine, San Marcos University, P.O. Box 03–5034, Salamanca, Lima, Peru; whuanca@appaperu.org

Search for other papers by M.P. Cervantes in
Current site
Google Scholar
PubMed

, and

T. Huanca

T. Huanca ²Quimsachata Research Station, ILLPA-INIA, Puno, Peru

Search for other papers by T. Huanca in
Current site
Google Scholar
PubMed

Type:: Chapter

Pages:: 107–113

DOI:: https://doi.org/10.3920/978-90-8686-576-5_012

Purchase instant access (PDF download and unlimited online access):

€42.00€35.00 excl. VAT

Add to Cart

Redeem Access Token

The objective of this study was to evaluate the relation between the phase of follicular development (growth, maintenance or regression) during mating with embryo mortality to day 35-post mating. 116 alpacas ≥ 3 years of age were examined daily by transrectal ultrasonography (Aloka SSD 500) using a 7.5 MHz linear-array transducer to evaluate follicular status and then assigned to the following groups G1: Growing follicle 5 – 6 mm (n = 27); G2: Growing ≥ 7 mm.(n=30); G3 Maintenance ≥ 7 mm. (n = 30); G4 Regressing follicle ≥7 mm. (n= 29). Ultrasounds examinations were performed on days 0, 2, 9, 20, 25, 30 and 35 to determine occurance of ovulation (day 2); Corpus Luteum diameter (CL (day 9) and presence of embryonic vesicle or embryo (day 20 to 35). Male acceptance, ovulation and conception rate was compared by Chi Square test between groups. Acceptance rate was 100% in groups G2,G3 and G4 but only 81.5% of animals of G1 with follicle of 6 mm. accepted mating. Ovulation rate was 95.5; 96.7; 100.0 and 96.6% in G1; G2; G3 and G4, respectively (P > 0.05) and no differences were detected between groups in CL diameter. Conception rate on day 20 was 57.1; 68.9; 60.0 and 50.0% for G1; G2; G3 and G4 (P > 0.05). Embryonic loss rates from day 20 to 35 were not significantly different between groups. This result suggest that the status of follicular development at mating would not have influence on embryo mortality rate between day 20 and 35 of gestation in alpacas and that animals that accepted mating in all phase, including the one with follicle of 6 mm diameter present similar reproductive performance.

Citation Info

Save
Cite
Email this content

Share link with colleague or librarian

You can email a link to this page to a colleague or librarian:
Email this content
or copy the link directly:

https://brill.edhh.ma/abstract/book/9789086865765/BP000012.xml
The link was not copied. Your current browser may not support copying via this button.

Link copied successfully

Collapse
Expand

South American camelids research

Volume 1

E-Book ISBN:: 9789086865765

Publisher:: Wageningen Academic

Print Publication Date:: 01 Nov 2006

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

Metrics

	All Time	Past 365 days	Past 30 Days
Abstract Views	93	54	6
Full Text Views	1	0	0
PDF Views & Downloads	1	0	0

African Studies	Education	Media Studies
American Studies	History	Middle East and Islamic Studies
Ancient Near East and Egypt	Human Rights and Humanitarian Law	Musicology
Art History	International Law	Philosophy
Asian Studies	International Relations	Religious Studies
Biblical Studies	Jewish Studies	Slavic and Eurasian Studies
Biology	Languages and Linguistics	Social Sciences
Book History and Cartography	Life Sciences	Theology and World Christianity
Classical Studies	Literature and Cultural Studies

Subjects

Authors

Open Access

Product Information

Company

Contact

Embryo mortality and its relation with the phase of follicular development at mating in alpaca

Citation Info

Share link with colleague or librarian

South American camelids research

Volume 1

Table of Contents

Metrics

Metrics