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da Silva TAS, Ferreira EM, de Souza TT, Barroso JPR, Biava JS, Pires AV, Carvalho PHV, Ferraz Junior MVDC. Effects of injectable and intravaginal progesterone on ewes' reproductive performance at breeding season beginning. Trop Anim Health Prod 2023; 55:58. [PMID: 36719488 DOI: 10.1007/s11250-023-03480-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 01/23/2023] [Indexed: 02/01/2023]
Abstract
Progesterone (P4) is a steroid hormone that has a regulatory role in the female reproductive system. Studies on the effects of injectable progesterone on ewes are scarce, mainly related to their reproductive responses in the breeding season. This study aimed to compare reproductive performance and serum P4 concentration using injectable or intravaginal P4 in ewes. Two hundred and forty and eight Santa Inês x Dorper ewes (BW; 52.67 ± 11.76 kg; mean ± SE), body condition score (BCS; 2.5 ± 0.8; scale of 1-5), were distributed in four treatments: (i) Control: without administration of P4; (ii) CIDR: intravaginal implantation of 330 mg of P4 for 7 days; (iii) 1P4: 15 mg of P4 intramuscular (IM); and (iv) 2P4I: 30 mg of P4 IM. The first 18 days of breeding season were considered the synchronization period. Except for ewes in the control group, all other ewes received 263 μg IM of cloprostenol sodium for lysis of eventual CL at 24 h before the P4 treatment. After the synchronization period, all ewes were kept together with males for extra 28 days in the breeding season. At the beginning of breeding season, 90% of the ewes had serum P4 concentration less than 1 ng/mL. The estrus rate was greater (P < 0.01) in ewes on the CIDR treatment, with similar estrus rate among the other treatments. The P4 implant was able to keep blood P4 concentration greater than 1 ng/mL in ewes that received an implant of P4 during the 7 days. After implant removal, there was a great increase in the estrus manifestation on ewes in the CIDR treatment, leading to an increase in pregnancy rate at the beginning of breeding season. The current study demonstrated that ewes that received an intramuscular injection of 15 or 30 mg of P4 had similar reproductive performance than ewes that did not receive any P4 intramuscular injection. However, when ewes were implanted with P4 (CIDR), these animals had an increase in estrus manifestation, leading to greater pregnancy earlier during the breeding season.
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Affiliation(s)
- Taylon Antonio Sales da Silva
- Departamento de Zootecnia, Instituto de Ciências Sociais, Educação e Zootecnia, Universidade Federal do Amazonas, Parintins, AM, 69152-240, Brazil
| | - Evandro Maia Ferreira
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Terezinha Teixeira de Souza
- Departamento de Zootecnia, Instituto de Ciências Sociais, Educação e Zootecnia, Universidade Federal do Amazonas, Parintins, AM, 69152-240, Brazil
| | - José Paulo Roman Barroso
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Pirassununga, SP, 13635-000, Brazil
| | - Janaina Socolovski Biava
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Alexandre Vaz Pires
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
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Zhang J, Wu X, Li X. GnRH administration after estrus induction protocol decreases the pregnancy rate of recipient ewes following transfer of frozen-thawed embryos. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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The effect of progesterone length in timed AI in ewes. Trop Anim Health Prod 2022; 54:258. [PMID: 35948838 DOI: 10.1007/s11250-022-03265-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 07/29/2022] [Indexed: 10/15/2022]
Abstract
This study aimed to evaluate the reproductive performance of ewes submitted to timed AI protocol with 7 (D7) or 9 (D9) days of progesterone. A total of 220 crossbred ewes (Doper × Santa Ines) were distributed in the treatments according to body weight (52.67 ± 11.76 kg), body condition score (2.5 ± 0.8; scale of 1-5), and the female category (multiparous, nulliparous and primiparous). Ewes received an intravaginal device of 0.3 g of progesterone (CIDR® Easy breed) on day 0, keeping in ewes for 7 or 9 days, which were the experimental treatments. At the time of P4 withdrawal, ewes received 300 IU of eCG (Novormon®) and 6.70 mg of dinoprost tromethamine (Lutalyse®). Insemination by laparoscopy was performed between 46 and 59 h after device removal, lasting from 1 to 5 min/ewe, which did not differ between protocols. The estrus detection rate was higher in the 9-day protocol compared to the 7-day protocol (82% and 65%, respectively, P = 0.0096). However, the 7-day protocol tended to increase pregnancy rate on the TAI compared to the 9-day protocol (45% and 33%, respectively, P = 0.09). The plasma concentration of progesterone at device removal was higher in the 7-day protocol than in the 9-day protocol (2.35 and 1.22 ng/mL, respectively, P = 0.04). We conclude that reducing the length of the estrus synchronization protocol to 7 days is recommended, which improved the reproductive response in ewes.
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Bezerra AS, dos Santos MAS, Lourenço-Júnior JDB. Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review. Front Vet Sci 2022; 9:896241. [PMID: 35711795 PMCID: PMC9195131 DOI: 10.3389/fvets.2022.896241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
This study identifies the number of publications that presented technologies used in the production systems of Santa Inês sheep in the last 5 years (2017–2021) carried out in Brazil. Therefore, the objective was to identify where we are in terms of knowledge about technologies in different fields (health, reproduction, animal breeding, behavior and welfare, nutrition and feeding, forage and pasture, carcass and meat quality, and economics and management of livestock systems). After rigorous selection, 114 studies were appointed and classified by knowledge field, and the main approaches within each theme were evaluated, pointing out research gaps. Most technologies have been in northeastern states. However, government agencies should develop public policies to disseminate techniques in rural areas because the production system in this region is still subsistence. This study highlighted the need for works that present management practices and tools that impact the improvement of animal welfare. Agro-industrial by-products have been widely used as an alternative for sheep feeding. However, economic feasibility analyses are recommended with these foodstuffs to substantiate their use as an option to reduce production costs. There is a lack of research allusive to the management of production systems, especially those related to estimates of economic feasibility indicators.
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Affiliation(s)
- Andréia Santana Bezerra
- Institute of Veterinary Medicine, Postgraduate Program in Animal Science (PPGCAN), Federal University of Para (UFPA), Federal University of the Amazon (UFRA), Brazilian Agricultural Research Corporation (EMBRAPA), Castanhal, Brazil
- *Correspondence: Andréia Santana Bezerra
| | | | - José de Brito Lourenço-Júnior
- Institute of Veterinary Medicine, Postgraduate Program in Animal Science (PPGCAN), Federal University of Para (UFPA), Federal University of the Amazon (UFRA), Brazilian Agricultural Research Corporation (EMBRAPA), Castanhal, Brazil
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Huo S, Chen Z, Li S, Wang J, Ma J, Yang Y, Zhaxi Y, Zhao Y, Zhang D, Long R. A comparative transcriptome and proteomics study of post-partum ovarian cycle arrest in yaks (Bos grunniens). Reprod Domest Anim 2021; 57:292-303. [PMID: 34850471 DOI: 10.1111/rda.14059] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 11/04/2021] [Indexed: 12/01/2022]
Abstract
Post-partum ovarian cycle arrest is the main factor affecting yak reproductive efficiency. There are few reports regarding the molecular regulatory mechanism of post-partum oestrus at transcriptome and proteome levels in yaks. Our previous studies focussed on the ovaries of yaks with post-partum ovarian cycle arrest and post-partum oestrus yaks. In this study, RNA sequencing transcriptomic study was combined with quantitative proteomic analyses to identify post-partum ovarian cycle-related genes and proteins. Consequently, 1,149 genes and 24 proteins were found to be up- or downregulated during post-partum oestrus. The analysis of differentially regulated genes identified three gene or protein pairs that were synchronously upregulated and no gene or protein pairs that were synchronously downregulated, suggesting that these upregulated genes may regulate the post-partum ovarian cycle. The functional classification of these differentially expressed genes and proteins indicated their connection with the oocyte meiosis, the oestrogen signalling pathway, the progesterone-mediated oocyte maturation and the gonadotrophin-releasing hormone (GnRH) signalling pathway. In this study, a total of six genes and two proteins involved in the oocyte meiosis, the oestrogen signalling pathway, the progesterone-mediated oocyte maturation and the GnRH signalling pathway were identified. The CSNK1A1, M91_09723, M91_11326, M91_21439, M91_19073, SHC2, Atf6b, M91_03062, HSPCA and calmodulin could regulate oestrus, respectively, in the post-partum so as to control the anoestrus status.
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Affiliation(s)
- Shengdong Huo
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Zhou Chen
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Shuyuan Li
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Jine Wang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Junyuan Ma
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Yanmei Yang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Yingpai Zhaxi
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Yongqing Zhao
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Derong Zhang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, China
| | - Ruijun Long
- College of Life Science, Lanzhou University, Lanzhou, China
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Manrique Quispe YP, Pérez Guerra UH, Málaga Apaza J, Ayma Flores WR, Cardenas Minaya OE, Pérez Durand MG. Evaluation of the short and long estrus synchronization protocol in inseminated sheep with frozen semen. JOURNAL OF THE SELVA ANDINA ANIMAL SCIENCE 2021. [DOI: 10.36610/j.jsaas.2021.080200073x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Manrique Quispe YP, Pérez Guerra UH, Málaga Apaza J, Ayma Flores WR, Cardenas Minaya OE, Pérez Durand MG. Evaluación del protocolo corto y largo de sincronización de celo en borregas inseminadas con semen congelado. JOURNAL OF THE SELVA ANDINA ANIMAL SCIENCE 2021. [DOI: 10.36610/j.jsaas.2021.080200073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Biehl MV, de Ferraz Junior MVC, Barroso JPR, Susin I, Ferreira EM, Polizel DM, Pires AV. The reused progesterone device has the same effect on short or long estrus synchronization protocols in tropical sheep. Trop Anim Health Prod 2019; 51:1545-1549. [PMID: 30778808 DOI: 10.1007/s11250-019-01841-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 02/07/2019] [Indexed: 11/30/2022]
Abstract
This study aimed to evaluate the effect of progesterone (P4) device reutilization in long and short protocols for transcervical timed artificial insemination (TAI) in Santa Inês ewes. A total of 275 multiparous lactating ewes were blocked according to body weight (BW, 49.1 ± 7.3 means ± SE), body condition score (BCS, 2.9 ± 0.4; scale of 1-5), and days postpartum (50 ± 8.2 days), and allocated to one of the treatments. The treatments were arranged in a factorial design, in which the factor 1 was the P4 device type (new or a device of 0.3 g of P4 previously used by 11 days), and the factor 2 was the short or long TAI protocol (P4 device remained by 7 or 11 days, respectively). At device removal, all ewes received 300 IU eCG and 6.70 mg of Dinoprost tromethamine. After TAI protocol, ewes remained with ram by 21 days. There was no interaction between factors in any variables. Ewes that received a new P4 device delayed (P = 0.05) to show estrus compared with ewes receiving a previously used P4 device, but it did not affect pregnancy rate. The long protocol tended to increase pregnancy rate compared with short protocol (33% vs. 24%, respectively; P = 0.07). However, the pregnancy rate at the end of reproductive period was similar in both groups (about 84%). Thus, the use of long protocols tended to improve reproductive performance, and the reused P4 device did not affect pregnancy rate.
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Affiliation(s)
- Marcos Vinicius Biehl
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | | | - José Paulo Roman Barroso
- Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Pirassununga, SP, 13635-000, Brazil
| | - Ivanete Susin
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Evandro Maia Ferreira
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Daniel Montanher Polizel
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - Alexandre Vaz Pires
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil. .,Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Pirassununga, SP, 13635-000, Brazil. .,Animal Science Department, University of Sao Paulo - ESALQ, Pádua Dias, Piracicaba, SP, Brazil.
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