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Linde M, Wehrend A, Farshad A. The Influence of Male Biostimulation on Cloacal Anatomy and Egg-Laying Behavior in Young Female Muscovy Ducks ( Cairina moschata forma domestica). Animals (Basel) 2024; 14:2002. [PMID: 38998114 PMCID: PMC11240517 DOI: 10.3390/ani14132002] [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: 06/03/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024] Open
Abstract
The importance of Muscovy ducks in industrial poultry production is growing; however, little is known about the physiology of their reproductive cycles. This study investigated the influence of male biostimulation on female ducks before the commencement of the laying phase. A total of 30 muscovy ducks, hatched in the same year at 289-341 days of age, were divided into two groups of 15 birds each and kept with and without contact with a male duck until the day of first egg-laying-319 ± 14 and 335 ± 13, respectively. Before reaching egg-laying maturity, the cloacae of 29 adult ducks were subjected to daily clinical assessments. The evaluations yielded four unique categories of outcomes, determined by assessing factors such as the degree of redness and protrusion of the mucous membrane, the moisture level, and swelling of the cloacal sphincter muscle. The results of this study on biostimulation revealed that, on average, female ducks that had contact with males laid their first egg 16 days earlier, weighing 78.7 ± 3.0 g, compared to the isolated female ducks, weighing 79.1 ± 7.0 g. Furthermore, there was no significant difference observed in the mean initial egg weight between the groups (p = 0.841). The cloacal morphology indicated significant morphological changes 25-26 days before laying. Efforts to improve Muscovy production and develop biotechnological techniques to modify these ducks' reproductive cycle will benefit from these advancements.
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Affiliation(s)
- Martin Linde
- Veterinary Clinics for Reproductive Medicine and Neonatology, Justus-Liebig-University of Giessen, 35392 Giessen, Germany; (M.L.); (A.W.)
| | - Axel Wehrend
- Veterinary Clinics for Reproductive Medicine and Neonatology, Justus-Liebig-University of Giessen, 35392 Giessen, Germany; (M.L.); (A.W.)
| | - Abbas Farshad
- Veterinary Clinics for Reproductive Medicine and Neonatology, Justus-Liebig-University of Giessen, 35392 Giessen, Germany; (M.L.); (A.W.)
- Laboratory of Reproduction Biology, Department of Animal Science, Faculty of Agriculture, University of Kurdistan, Sanandaj 6617715175, Iran
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López-Magaña N, Tejada LM, López-Magaña D, Hernández H, Flores MJ, Vielma J, Abecia JA, Keller M, Chemineau P, Delgadillo JA. Physical separation and reduction of contact duration with sexually hyperactive bucks decrease testosterone concentrations and sexual behaviour in bucks in sexual rest. Animal 2024; 18:101179. [PMID: 38821002 DOI: 10.1016/j.animal.2024.101179] [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: 01/05/2024] [Revised: 04/23/2024] [Accepted: 04/29/2024] [Indexed: 06/02/2024] Open
Abstract
Sexually hyperactive bucks are more efficient than sexually hypoactive bucks in stimulating testosterone secretion and sexual behaviour in other bucks in seasonal sexual rest by the phenomenon that we called the "buck-to-buck effect". Here, we determined whether physical separation and reduction of the duration of contact with the sexually hyperactive bucks would modify those parameters in sexually hypoactive bucks exposed to the "buck-to-buck effect". Bucks were subjected to natural day length throughout the study; this was the sexually hypoactive group. Other bucks were subjected to artificial long days (16 h of light per day) from 15 November to 15 January followed by exposure to natural day length to stimulate their sexual activity during the rest season; this was the sexually hyperactive group. In Experiment 1, we determined testosterone concentrations and sexual behaviour of six sexually hypoactive bucks separated 1.5 m from six sexually hyperactive bucks for 60 days by a metal open work fence, while a control group of six sexually hypoactive bucks was in permanent contact with six sexually hyperactive bucks. In Experiment 2, the duration of contact with sexually hyperactive males was reduced from 31 days (contact group, six bucks) to 10 days (withdraw group, seven bucks). In experiments 1 and 2, there was an effect of time (P < 0.01) and an interaction between time and groups (P < 0.05). In Experiment 1, testosterone plasma concentrations were greater in bucks in contact with sexually hyperactive bucks than in those separated from bucks at 20 and 30 days after the introduction of sexually hyperactive bucks (P < 0.01). The bucks from the contact group also displayed more nudging than bucks from the separated group from 0 to 30 days (P < 0.001). In Experiment 2, testosterone concentrations were greater in the contact group than in those from the withdraw group from 19 to 31 days after the introduction of sexually hyperactive bucks (P < 0.05). Bucks from the withdraw group displayed more nudging than the contact group 7 days after the introduction of the sexually hyperactive bucks (P < 0.05). Afterwards, bucks from the contact group displayed more nudging than the withdraw group 14, 21 and 28 days after the introduction of the sexually hyperactive bucks. We concluded that physical separation and reduction of the duration of contact with the sexually hyperactive bucks decrease testosterone concentrations and sexual behaviour of bucks in sexual rest exposed to the "buck-to-buck effect".
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Affiliation(s)
- N López-Magaña
- Centro de Investigación en Reproducción Caprina (CIRCA), Universidad Autónoma Agraria Antonio Narro, 27274 Torreón, Coahuila, Mexico; Centro de Investigación Biomédica, Universidad Autónoma de Coahuila, 27000 Torreón, Coahuila, Mexico
| | - L M Tejada
- Centro de Investigación en Reproducción Caprina (CIRCA), Universidad Autónoma Agraria Antonio Narro, 27274 Torreón, Coahuila, Mexico
| | - D López-Magaña
- Centro de Investigación en Reproducción Caprina (CIRCA), Universidad Autónoma Agraria Antonio Narro, 27274 Torreón, Coahuila, Mexico
| | - H Hernández
- Centro de Investigación en Reproducción Caprina (CIRCA), Universidad Autónoma Agraria Antonio Narro, 27274 Torreón, Coahuila, Mexico
| | - M J Flores
- Campo Experimental La Laguna, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, 1200 Matamoros, Coahuila, Mexico
| | - J Vielma
- Centro de Investigación en Reproducción Caprina (CIRCA), Universidad Autónoma Agraria Antonio Narro, 27274 Torreón, Coahuila, Mexico
| | - J A Abecia
- Departamento de Producción Animal y Ciencia de los Alimentos, IUCA, Universidad de Zaragoza, 50013 Zaragoza, Spain
| | - M Keller
- UMR Physiologie de la Reproduction et des Comportements, INRAE, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France
| | - P Chemineau
- UMR Physiologie de la Reproduction et des Comportements, INRAE, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France
| | - J A Delgadillo
- Centro de Investigación en Reproducción Caprina (CIRCA), Universidad Autónoma Agraria Antonio Narro, 27274 Torreón, Coahuila, Mexico.
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Landaeta-Hernández AJ, Ungerfeld R, Chenoweth PJ. Biostimulation and pheromones in livestock: A review. Anim Reprod Sci 2023; 248:107154. [PMID: 36495839 DOI: 10.1016/j.anireprosci.2022.107154] [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: 06/19/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
Abstract
This review examines aspects of the phenomenon of biostimulation in swine, goats, sheep, cattle and deer, to improve the collective knowledge and exploitation of its relevant mechanisms and effects in animal production. The long-term goal is to implement biostimulation strategies that benefit livestock reproduction and production while being both cost-effective and socially acceptable.
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Affiliation(s)
| | - Rodolfo Ungerfeld
- Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay
| | - Peter J Chenoweth
- James Cook University, College of Public Health, Medical and Veterinary Sciences Townsville, Queensland 4814, Australia
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Rams sexually activated in spring by light treatment stimulate social and sexual activities in non-activated rams. J Vet Behav 2022. [DOI: 10.1016/j.jveb.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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