1
|
Wondim B, Taye M, Alemayehu K, Rouatbi M, Getachew T, Haile A, Rekik M. The efficiency of estrus synchronization protocols and artificial insemination in the Abergelle goat on-station and on-farm conditions of Northern Ethiopia. JOURNAL OF APPLIED ANIMAL RESEARCH 2022. [DOI: 10.1080/09712119.2022.2108815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Bekahegn Wondim
- Animal Production and Technology Department, Collage of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar, Ethiopia
- Sekota Dry Land Agriculture Research Center (SDARC), Sekota, Ethiopia
| | - Mengistie Taye
- Animal Production and Technology Department, Collage of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar, Ethiopia
- Biotechnology Research Institute, Bahir Dar University, Bahir Dar, Ethiopia
| | - Kefyalew Alemayehu
- Animal Production and Technology Department, Collage of Agriculture and Environmental Science, Bahir Dar University, Bahir Dar, Ethiopia
| | - Mariem Rouatbi
- Institut Supérieur Agronomique de Chott Mariem, University of Sousse, Sousse, Tunisia
| | - Tesfaye Getachew
- International Center for Agricultural Research in Dry Areas (ICARDA), Addis Ababa, Ethiopia
| | - Aynalem Haile
- International Center for Agricultural Research in Dry Areas (ICARDA), Addis Ababa, Ethiopia
| | - Mourad Rekik
- International Center for Agricultural Research in Dry Areas (ICARDA), Amman, Jordan
| |
Collapse
|
2
|
Zarazaga LÁ, Gatica MC, De La Rosa I, Delgado-Pertíñez M, Guzmán JL. The High Testosterone Concentrations of the Bucks Used in the "Male Effect" Is Not a Prerequisite for Obtaining High Ovarian Activity in Goats from Mediterranean Latitudes. Animals (Basel) 2022; 12:ani12080954. [PMID: 35454200 PMCID: PMC9029418 DOI: 10.3390/ani12080954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/31/2022] [Accepted: 04/05/2022] [Indexed: 02/06/2023] Open
Abstract
Two experiments were carried out. Firstly, 54 anestrous females were placed in contact with photostimulated males (Photo; n = 27) or with no photostimulated males (Natural; n = 27). Moreover, a group of bucks treated with artificial photoperiod and a group of bucks subjected to natural photoperiod without contact with females was used (Photo Isolated and Natural Isolated, respectively). In the Natural groups, the testosterone concentrations were similar except for three days after the introduction of the bucks to the does (19.72 ± 4.11 vs. 2.05 ± 0.25 ng/mL for Natural and Natural isolated bucks, respectively, p < 0.05). However, no differences were observed in the Photo groups during the entire experiment. The percentage of females showing estrous was higher in the group of females in contact with photostimulated bucks (96 vs. 74%, respectively, p < 0.05). In the second experiment, a GnRH agonist, deslorelin, was used to regulate the testosterone concentrations of the bucks. Seventy anestrous females were divided into five groups depending on the treatment received by the bucks to which they were exposed: photostimulated bucks (Photo group, n = 14); photostimulated bucks but treated with the agonist at the onset of the photoperiod treatment (Photo-Ago Long group, n = 13); photostimulated bucks but treated with the agonist at the end of the photoperiod treatment (Photo-Ago Short group, n = 15); bucks receiving no photostimulation but treated with the agonist at the end of the photoperiod treatment period (Natural-Ago Short group, n = 13) and bucks receiving no photostimulation nor agonist (Natural group, n = 15). The agonist treatment increased testosterone concentrations after the injection, which remained high for the entire experiment (p < 0.05). Six days after the introduction of the bucks to the does, the testosterone concentrations increased only in the Natural group reaching similar concentrations to the other groups (12.17 ± 6.55, 16.69 ± 4.53, 8.70 ± 0.61, 11.03 ± 1.45 and 14.42 ± 3.64 ng/mL for Photo, Photo-Ago Long, Photo-Ago Short, Natural-Ago Short and Natural bucks, respectively, p > 0.05). No differences in reproductive parameters were observed (p > 0.05). These results demonstrate that, at Mediterranean latitudes, anestrous females can stimulate the testosterone concentrations of bucks after a period of isolation. The high testosterone concentrations are not a prerequisite for an adequate response to the male effect.
Collapse
Affiliation(s)
- Luis Ángel Zarazaga
- Departamento de Ciencias Agroforestales, Escuela Técnica Superior de Ingeniería, “Campus de Excelencia Internacional Agroalimentario, CeiA3”, Campus Universitario de la Rábida, Universidad de Huelva, Carretera de Huelva-Palos de la Frontera, s/n, 21819 Huelva, Spain; (I.D.L.R.); (J.L.G.)
- Correspondence: ; Tel.: +34-959217713
| | - María-Carolina Gatica
- Facultad de Recursos Naturales Renovables, Universidad Arturo Prat, Avenida Arturo Prat, Iquique 2120, Chile;
| | - Ignacio De La Rosa
- Departamento de Ciencias Agroforestales, Escuela Técnica Superior de Ingeniería, “Campus de Excelencia Internacional Agroalimentario, CeiA3”, Campus Universitario de la Rábida, Universidad de Huelva, Carretera de Huelva-Palos de la Frontera, s/n, 21819 Huelva, Spain; (I.D.L.R.); (J.L.G.)
| | - Manuel Delgado-Pertíñez
- Departamento de Agronomía, Escuela Técnica Superior de Ingeniería Agronómica, Universidad de Sevilla, Ctra. Utrera km 1, 41013 Sevilla, Spain;
| | - José Luis Guzmán
- Departamento de Ciencias Agroforestales, Escuela Técnica Superior de Ingeniería, “Campus de Excelencia Internacional Agroalimentario, CeiA3”, Campus Universitario de la Rábida, Universidad de Huelva, Carretera de Huelva-Palos de la Frontera, s/n, 21819 Huelva, Spain; (I.D.L.R.); (J.L.G.)
| |
Collapse
|
3
|
Zarazaga LA, Gatica MC, De La Rosa I, Guzmán JL. The use of photoperiod-treated bucks to induce a "male effect" does not compensate for the negative effects of nutritional restriction of the females in Mediterranean goats. Res Vet Sci 2021; 139:177-185. [PMID: 34333252 DOI: 10.1016/j.rvsc.2021.07.027] [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: 03/24/2021] [Revised: 07/09/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
This work examined the effect of acute nutritional restriction or supplementation one week before male introduction on the reproductive performances of the "male effect" when using photostimulated or control males in goats. On 22 March, 84 anoestrous does were placed with photostimulated bucks or with bucks which had received no treatments. One week before male introduction, the females were provided with different nutritional regimes: Supplemented, restricted or control females. The non-esterified fatty acids (NEFAs) and Insulin Growth Factor-1 (IGF-1) concentrations were measured in the same samples. Fecundity, fertility, prolificacy and productivity were also determined. No interaction between both sources of variation was observed in any of the reproductive variables studied. Treatment of the bucks increased the percentage of females expressing behavioural oestrous associated with ovulation (71% vs 90% for Natural and Photo groups, respectively, P < 0.05). The Supplemented females showed higher ovulation rate than Restricted females (1.77 ± 0.13 vs 1.05 ± 0.05, P < 0.001), fecundity (71% vs 43%, P < 0.05); fertility (76% vs 29%, P < 0.05) and productivity (1.00 ± 0.15 vs 0.29 ± 0.11 kids per female, P < 0.01). In the Supplemented females, the higher reproductive results could be due to the lower NEFAs and higher IGF-1 concentrations at ovulation and at the time of oestrus compared to the Restricted females. Thus, the present experiment results demonstrate that nutrition is an important factor in the response to the "male effect" at Mediterranean latitudes, and its negative effect cannot be counterbalanced by using photostimulated bucks.
Collapse
Affiliation(s)
- L A Zarazaga
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera Huelva-Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain.
| | - M C Gatica
- Universidad Arturo Prat, Facultad de Recursos Naturales Renovables, Avenida Arturo Prat, 2120 Iquique, Chile
| | - I De La Rosa
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera Huelva-Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain
| | - J L Guzmán
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera Huelva-Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain
| |
Collapse
|
4
|
Zarazaga L, Gatica M, Hernández H, Chemineau P, Delgadillo J, Guzmán J. Photoperiod-treated bucks are equal to melatonin-treated bucks for inducing reproductive behaviour and physiological functions via the “male effect” in Mediterranean goats. Anim Reprod Sci 2019; 202:58-64. [DOI: 10.1016/j.anireprosci.2019.01.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/18/2019] [Accepted: 01/28/2019] [Indexed: 10/27/2022]
|
5
|
Gallego-Calvo MDL, Gatica MC, Guzmán JL, Zarazaga LA. Effect of body condition and melatonin implants, inserted at different times of the year, on ovarian activity in goats maintained without male contact from the time of implantation. ANIMAL PRODUCTION SCIENCE 2019. [DOI: 10.1071/an18046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of the present work was to asses (1) whether body condition (BC) and (2) melatonin implants, inserted at different times of the year between the winter and summer solstices, have an effect on seasonal ovulatory activity in goats without presence of males. Sixty-six Blanca Andaluza does were divided into six groups. Five of these received a melatonin implant on either 18 December (n = 10), 3 February (n = 12), 19 March (n = 12), 30 April (n = 11) or 11 June (n = 11). Following this procedure, the does were completely isolated from bucks. Another 10 goats (YEAR group) were used to monitor natural annual ovarian activity; these females were completely isolated from males over the entire experimental period (from 18 December of one year until 17 December of the next year). Half the does of each group had a low body condition score (BC; ≤2.50; 2.46 ± 0.02), and half had a high BC (≥3.00; 3.24 ± 0.04). Ovulatory activity was monitored via the progesterone concentrations determined in blood samples collected twice per week for 4 months following melatonin implantation, and over 12 months for the YEAR group. Over 46% of the females showed ovarian activity after the melatonin treatment, ranging from the lowest response in December (30%) and the highest one in February (75%) without differences between the dates of melatonin insertion (P > 0.05). However, the response to the melatonin implant was higher in the females with a high BC than in females with a low BC (63% vs 31% for high and of low BC respectively, P < 0.05). The present results indicated that melatonin implants induce ovarian activity in does in the absence of male contact. The moment of melatonin implantation did not modify ovulatory activity. However, the ovulatory response to melatonin implants was higher in the females with a BC of ≥3.00.
Collapse
|
6
|
Gallego-Calvo L, Gatica M, Guzmán J, Zarazaga L. Reproductive responses to sexually active buck of does treated with melatonin when body weight/body condition is increasing or decreasing. Anim Reprod Sci 2018; 190:75-84. [DOI: 10.1016/j.anireprosci.2018.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/03/2018] [Accepted: 01/26/2018] [Indexed: 10/18/2022]
|
7
|
Zarazaga L, Gatica M, Gallego-Calvo L, Guzmán J. The reproductive performance of female goats treated with melatonin is not improved after introduction to bucks displaying springtime sexual activity if these does are experiencing decreasing body weight/condition score. Anim Reprod Sci 2017; 179:57-66. [DOI: 10.1016/j.anireprosci.2017.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 01/09/2017] [Accepted: 02/01/2017] [Indexed: 11/30/2022]
|
8
|
Bomfim GF, Merighe GKF, de Oliveira SA, Rodrigues AD, Augusto L, Teixeira IAMA, de Resende KT, Negrao JA. Effects of different supplemental soya bean oil levels on the performance of prepubertal Saanen goats: Oestrogen and progesterone release. J Anim Physiol Anim Nutr (Berl) 2016; 100:1097-1103. [PMID: 26898245 DOI: 10.1111/jpn.12486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 01/11/2016] [Indexed: 11/29/2022]
Abstract
The aim of this study was to investigate the effects of different levels of soya bean oil in the total diet on the growth rate, metabolic changes, and oestrogen and progesterone release in Saanen goats. After dietary adaptation, 21 prepubertal goats (weight of 29.12 ± 0.91 kg, 230 days old) were randomly distributed among three diets of D2: inclusion of 2% soya bean oil in the total diet; D3: basal diet - inclusion of 3% soya bean oil in the total diet; and D4: inclusion of 4% soya bean oil in the total diet. The basal diet (D3) was formulated to promote a daily gain of 0.140 kg. The goats were weighed, and their blood samples were collected weekly. Glucose, cholesterol, triglycerides, total protein, urea, non-esterified fatty acids, beta-hydroxybutyrate, oestrogen and progesterone in the plasma were measured. Prepubertal goats that were fed D4 exhibited a significantly lower dry matter intake, urea and cholesterol levels compared with the goats that were fed D2 and D3. Indeed, goats that were fed D4 displayed a significantly lower final weight than goats that were fed D2 and D3. In contrast, the inclusion of soya bean oil in the diet increased the progesterone and oestrogen concentrations, and goats that were fed D4 released a significantly higher concentration of progesterone than those that were fed D2 and D3. Furthermore, the percentage of goats with a progesterone level greater than 1 ng/ml (functional Corpus luteum) was significantly higher among the goats that were fed D3 and D4 than among those that were fed D2. In this study, although the inclusion of 4% soya bean oil in the diet decreased dry matter intake and growth rate, it increased progesterone concentration and the percentage of goats with a functional Corpus luteum, suggesting that the inclusion of soya bean oil accelerated puberty in prepubertal goats.
Collapse
Affiliation(s)
- G F Bomfim
- Department of Basic Sciences, University of São Paulo, Pirassununga, Brazil
| | - G K F Merighe
- Department of Basic Sciences, University of São Paulo, Pirassununga, Brazil
| | - S A de Oliveira
- Department of Basic Sciences, University of São Paulo, Pirassununga, Brazil
| | - A D Rodrigues
- Department of Basic Sciences, University of São Paulo, Pirassununga, Brazil
| | - L Augusto
- Department of Basic Sciences, University of São Paulo, Pirassununga, Brazil
| | - I A M A Teixeira
- Department of Animal Science, State University of São Paulo, Jaboticabal, Brazil
| | - K T de Resende
- Department of Animal Science, State University of São Paulo, Jaboticabal, Brazil
| | - J A Negrao
- Department of Basic Sciences, University of São Paulo, Pirassununga, Brazil
| |
Collapse
|
9
|
Recent advances on synchronization of ovulation in goats, out of season, for a more sustainable production. ASIAN PACIFIC JOURNAL OF REPRODUCTION 2015. [DOI: 10.1016/s2305-0500(15)30014-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
10
|
Reproductive performance response to the male effect in goats is improved when doe live weight/body condition score is increasing. Anim Reprod Sci 2015; 156:51-7. [DOI: 10.1016/j.anireprosci.2015.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Revised: 02/27/2015] [Accepted: 03/02/2015] [Indexed: 11/22/2022]
|
11
|
Gallego-Calvo L, Gatica M, Guzmán J, Zarazaga L. Role of body condition score and body weight in the control of seasonal reproduction in Blanca Andaluza goats. Anim Reprod Sci 2014; 151:157-63. [DOI: 10.1016/j.anireprosci.2014.10.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 10/06/2014] [Accepted: 10/09/2014] [Indexed: 11/16/2022]
|
12
|
Delgadillo J, Flores J, Duarte G, Vielma J, Hernández H, Bedos M, Fitz-Rodríguez G, Fernández I, López-Sebastián A, Gómez-Brunet A, Santiago-Moreno J, Zarazaga L, Keller M, Chemineau P. Out-of-season control of reproduction in subtropical goats without exogenous hormonal treatments. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2014.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
13
|
Zarazaga LA, Gatica MC, Gallego-Calvo L, Celi I, Guzmán JL. The timing of oestrus, the preovulatory LH surge and ovulation in Blanca Andaluza goats synchronised by intravaginal progestagen sponge treatment is modified by season but not by body condition score. Anim Reprod Sci 2014; 146:170-5. [PMID: 24631172 DOI: 10.1016/j.anireprosci.2014.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 02/10/2014] [Accepted: 02/15/2014] [Indexed: 10/25/2022]
Abstract
The aim of this study was to determine whether a seasonal pattern of reproductive events is followed after synchronisation by intravaginal progestagen sponge treatment in female Blanca Andaluza goats, and whether the timing of these events is affected by body condition score (BCS). During seasonal anoestrus (March), and again during the breeding season (November), the same 32 does were distributed into four subgroups according to their BCS: ≤2.25, =2.50, =2.75, and ≥3.00 (n=8 in all cases). They were then synchronised using a commercial intravaginal sponge treatment. Every 4h over the 72h following sponge removal, oestrous activity, the LH concentration and each doe's number of follicles were followed by transrectal ultrasonography. The does synchronised during seasonal anoestrus produced more follicles than those synchronised during the breeding season (P<0.01). The time elapsed between sponge removal and the onset of oestrus, the LH surge and time of ovulation, was also shorter in these does (P<0.001). The BCS only modified the number of follicles present in the ovary just before ovulation; this number was significantly lower in the =2.50 BCS subgroup than in the other subgroups (P<0.05). The present results show that the time to ovulation, and all events around it, are modified by the season in which Blanca Andaluza does are synchronised, but not by BCS.
Collapse
Affiliation(s)
- L A Zarazaga
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera de Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain.
| | - M C Gatica
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera de Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain
| | - L Gallego-Calvo
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera de Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain
| | - I Celi
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera de Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain
| | - J L Guzmán
- Departamento de Ciencias Agroforestales, Universidad de Huelva, "Campus de Excelencia Internacional Agroalimentario, ceiA3", Carretera de Palos de la Frontera s/n, 21819 Palos de la Frontera, Huelva, Spain
| |
Collapse
|
14
|
Zarazaga LA, Celi I, Guzmán JL, Malpaux B. The effect of nutrition on the neural mechanisms potentially involved in melatonin-stimulated LH secretion in female Mediterranean goats. J Endocrinol 2011; 211:263-72. [PMID: 21903864 DOI: 10.1530/joe-11-0225] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This research examines which neural mechanisms among the endogenous opioid, dopaminergic, serotonergic and excitatory amino acid systems are involved in the stimulation of LH secretion by melatonin implantation and their modulation by nutritional level. Female goats were distributed to two experimental groups that received either 1.1 (group H; n=24) or 0.7 (group L; n=24) times their nutritional maintenance requirements. Half of each group was implanted with melatonin after a long-day period. Plasma LH concentrations were measured twice per week. The effects of i.v. injections of naloxone, pimozide, cyproheptadine and N-methyl-d,l-aspartate (NMDA) on LH secretion were assessed the day before melatonin implantation and again on days 30 and 45. The functioning of all but the dopaminergic systems was clearly modified by the level of nutrition, melatonin implantation and time elapsed since implantation. Thirty days after implantation, naloxone increased LH concentrations irrespective of the level of nutrition (P<0.05), similar to NMDA in the melatonin-implanted H goats (HM; P<0.01). On day 45, naloxone increased LH concentrations in the HM animals (P<0.05), similar to cyproheptadine in both the non-implanted H (HC) and the HM animals (P<0.01). Finally, at 45 days, NMDA increased the LH concentration in all subgroups (P<0.01). These results provide evidence that the effects of different neural systems on LH secretion are modified by nutritional level and melatonin implantation. Endogenous opioids seem to be most strongly involved in the inhibition of LH secretion on days 30 and 45 after melatonin implantation. However, the serotonergic mechanism appears to be most influenced by nutritional level.
Collapse
Affiliation(s)
- Luis A Zarazaga
- Department of Agroforestry Sciences, University of Huelva, Carretera de Palos de la Frontera s/n, Palos de la Frontera, 21819 Huelva, Spain.
| | | | | | | |
Collapse
|