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1. 7 Pregnancy from a vitrified-warmed alpaca pre-implantation embryo

Author:
Lutz, J.; Johnson, S.; Duprey, K.; Taylor, P.; Vivanco, H.; Ponce-Salazar, M.; Miguel, M.; Youngs, C.
Source:
Reproduction, fertility, and development 2020 v.32 no.2 pp. 128
ISSN:
1031-3613
Subject:
alpacas,   etc   ; Vicugna pacos; air; biotechnology; blastocyst; blood serum; camels; carbon dioxide; corpus luteum; cryopreservation; embryo transfer; ethylene glycol; farmers; females; follicular development; galactose; glycerol; gonadotropin-releasing hormone; heart rate; herds; liquid nitrogen; livelihood; neonates; ovarian follicles; pregnancy; roughage; sexual maturity; sires; straw; ultrasonics; vitrification;     Show all 31 Subjects
Abstract:
... The alpaca (Vicugna pacos) is a ruminant livestock species in the South American camelid family. There are more than 9 million South American camelids globally that make important contributions to the livelihoods of rural farmers through conversion of low quality roughages to high quality food and fibre. Reproductive biotechnologies for alpacas are not well developed compared with those for other ...
DOI:
10.1071/RDv32n2Ab7

2. 108 Use of seminal plasma as ovulation inductor in alpacas (Vicugna pacos) embryo recipient and its effect on pregnancy rate

Author:
Huanca, W.; Garcia, K.; Huanca, W. F.; Cordero, A.; Malaga, J.
Source:
Reproduction, fertility, and development 2020 v.32 no.2 pp. 181
ISSN:
1031-3613
Subject:
alpacas,   etc   ; Vicugna pacos; acetates; adults; artificial vagina; biotechnology; body condition; breeding programs; corpus luteum; embryo transfer; equine chorionic gonadotropin; females; frozen storage; gonadotropin-releasing hormone; males; nerve growth factor; ovarian follicles; ovulation; pregnancy rate; seminal plasma; spermatozoa; storage temperature; ultrasonography; uterus;     Show all 24 Subjects
Abstract:
... Alpacas, like other camelids, are classified as induced ovulators because an external stimulus is required for the occurrence of ovulation. Recent studies have identified the β-nerve growth factor (β-NGF), a protein present in the seminal plasma (SP), as responsible for inducing ovulation in this species and having potent luteotropic function. We speculate that SP can be used in reproductive biote ...
DOI:
10.1071/RDv32n2Ab108

3. 112 Comparative study between slow freezing and vitrification on the survival rate of cryopreserved alpaca embryos post-transfer

Author:
Vivanco-Mackie, H. W.; Ponce-Salazar, M. D.; Miguel-Gonzales, M.; Youngs, C. R.; Jara, C.; Asparrin, M.
Source:
Reproduction, fertility, and development 2019 v.31 no.1 pp. 182
ISSN:
1031-3613
Subject:
alpacas,   etc   ; acetates; adults; ambient temperature; blastocyst; camels; cloprostenol; cryopreservation; embryo transfer; equine chorionic gonadotropin; ethylene; ethylene glycol; farms; females; freezing; galactose; glycerol; gonadotropin-releasing hormone; kanamycin; males; natural mating; ovulation; pregnancy diagnosis; pregnancy rate; sodium; straw; sucrose; survival rate; vitrification;     Show all 29 Subjects
Abstract:
... The objective of this study was to compare the effectiveness of cryopreserving in vivo-produced alpaca embryos by slow freezing v. vitrification. The embryos were produced from 9 female alpacas at Fundo Mallkini, Puno, Peru, located at 4300m elevation. The donor alpacas were synchronized by induction to ovulate with an injection of gonadotropin-releasing hormone (0.0084mg of buserelin acetate) and ...
DOI:
10.1071/RDv31n1Ab112

4. Embryo production by superovulation and dual siring in alpacas (Vicugna pacos)

Author:
Forshey, B.S.; Moraes, C.R.; Lakritz, J.; Pinto, C.R.F.; Coffman, E.; Schanbacher, B.J.; Place, N.J.; Coutinho da Silva, M.A.
Source:
Small ruminant research 2018 v.162 pp. 63-68
ISSN:
0921-4488
Subject:
alpacas,   etc   ; Vicugna pacos; embryo (animal); embryo transfer; females; follicle-stimulating hormone; genetic improvement; herds; male fertility; males; ovarian follicles; ovulation; parentage; progeny; superovulation;     Show all 15 Subjects
Abstract:
... Alpacas can only produce one offspring per year. In order to accelerate the genetic gain of a herd, superovulation and embryo transfer can be used to produce multiple embryos from superior females. We hypothesized that the use of dual siring with superovulation would result in the production of multiple embryos sired by different males. After administration of the superovulation protocol, receptiv ...
DOI:
10.1016/j.smallrumres.2018.03.006