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Galina CS, Geffroy M. Dual-Purpose Cattle Raised in Tropical Conditions: What Are Their Shortcomings in Sound Productive and Reproductive Function? Animals (Basel) 2023; 13:2224. [PMID: 37444022 DOI: 10.3390/ani13132224] [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: 05/27/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
Dual-purpose husbandry might well be the most commonly employed cattle management system in tropical regions worldwide. The advantages of producing both meat and milk, although in reduced quantities, gives an edge to the farmer in coping with the volatile economic conditions that prevail in the region. Herein, we discuss the different methods of cattle management under tropical conditions based on the financial and social structure of this system. An account of the sanitary and nutritional conditions available to the farmers and how these factors affect the profitability of the enterprise will also be given. Finally, we will discuss how these systems can take advantage of several biotechnological procedures, and how these tools (such as controlled natural mating, artificial insemination, and embryo transfer) affect reproductive outcomes. The present review will mainly concentrate on production systems located less than 1000 m above sea level, as the problems and shortcomings of cattle raised above this arbitrary landmark are quite different.
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Affiliation(s)
- Carlos Salvador Galina
- Departamento de Reproducción, Facultad de Medicina, Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510, Mexico
| | - Mariana Geffroy
- Departamento de Reproducción, Facultad de Medicina, Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510, Mexico
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2
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Srirattana K, Hufana‐Duran D, Atabay EP, Duran PG, Atabay EC, Lu K, Liang Y, Chaikhun‐Marcou T, Theerakittayakorn K, Parnpai R. Current status of assisted reproductive technologies in buffaloes. Anim Sci J 2022; 93:e13767. [PMID: 36123790 PMCID: PMC9787342 DOI: 10.1111/asj.13767] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/05/2022] [Accepted: 08/25/2022] [Indexed: 12/30/2022]
Abstract
Buffaloes are raised by small farm holders primarily as source of draft power owing to its resistance to hot climate, disease, and stress conditions. Over the years, transformation of these animals from draft to dairy was deliberately carried out through genetic improvement program leading to the development of buffalo-based enterprises. Buffalo production is now getting more attention and interest from buffalo raisers due to its socioeconomic impact as well as its contribution to propelling the livestock industry in many developing countries. Reproduction of buffaloes, however, is confronted with huge challenge and concern as being generally less efficient to reproduce compared with cattle due to both intrinsic and extrinsic factors such as poor estrus manifestation, silent heat, marked seasonal infertility, postpartum anestrus, long calving interval, delayed puberty, inherently low number of primordial follicles in their ovaries, high incidence of atresia, and apoptosis. Assisted reproductive technologies (ARTs) are major interventions for the efficient utilization of follicle reserve in buffaloes. The present review focuses on estrus and ovulation synchronization for fixed time artificial insemination, in vitro embryo production, intracytoplasmic sperm injection, cryopreservation of oocytes and embryos, somatic cell nuclear transfer, the factors affecting utilization in various ARTs, and future perspectives in buffaloes.
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Affiliation(s)
- Kanokwan Srirattana
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhon RatchasimaThailand
| | - Danilda Hufana‐Duran
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines,Department of Animal ScienceCentral Luzon State UniversityScience City of MunozNueva EcijaPhilippines
| | - Eufrocina P. Atabay
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines
| | - Peregrino G. Duran
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines,Department of Animal ScienceCentral Luzon State UniversityScience City of MunozNueva EcijaPhilippines
| | - Edwin C. Atabay
- Reproduction and Physiology SectionDepartment of Agriculture‐Philippine Carabao CenterScience City of MunozNueva EcijaPhilippines,Department of Animal ScienceCentral Luzon State UniversityScience City of MunozNueva EcijaPhilippines
| | - Kehuan Lu
- Animal Reproduction InstituteGuangxi UniversityNanningGuangxiChina
| | - Yuanyuan Liang
- Department of Reproductive MedicineLiuzhou General HospitalLiuzhouGuangxiChina
| | - Thuchadaporn Chaikhun‐Marcou
- Obstetrics Gynecology Andrology and Animal Biotechnology Clinic, Faculty of Veterinary MedicineMahanakorn University of TechnologyBangkokThailand
| | - Kasem Theerakittayakorn
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhon RatchasimaThailand
| | - Rangsun Parnpai
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Institute of Agricultural TechnologySuranaree University of TechnologyNakhon RatchasimaThailand
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Contreras DA, Galina CS, Chenoweth P. Prospects for increasing the utilization of cattle embryo transfer by small-scale milk and meat producers in tropical regions. Reprod Domest Anim 2021; 56:1479-1485. [PMID: 34494313 DOI: 10.1111/rda.14015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022]
Abstract
Small community cattle farmers in the tropics are facing challenges to deliver quality products whilst under pressure to increase milk and beef yields per cow. These challenges could be partially met by crossbreeding Bos taurus with Bos indicus (F1) cattle utilizing embryo transfer (ET) technology. The Bos taurus infusion would increase milk production, whilst the Bos indicus influence can improve resistance to the harsh environment of the tropics. Here, individuals from existing herds can be used to produce F1 embryos which benefit from hybrid vigour. Resultant female offspring would in turn receive an F1 embryo on reaching breeding maturity. This approach would help to provide a cost-effective, systematic approach to improve productivity in dairy and beef cattle in the tropics. However, full usage of ET, including in vitro applications, in the tropics will require improvements in procedures, resources and education.
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Affiliation(s)
- David A Contreras
- Departamento de Medicina y Zootecnia de Rumiantes, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Carlos S Galina
- Departamento de Reproducción, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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Díaz RF, Galina CS, Aranda EM, Aceves LA, Sánchez JG, Pablos JL. Effect of temperature - humidity index on the onset of post- partum ovarian activity and reproductive behavior in Bos indicus cows. Anim Reprod 2020; 17:e20190074. [PMID: 32399065 PMCID: PMC7212737 DOI: 10.21451/1984-3143-ar2019-0074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The effect of climatic factors on ovarian activity and reproductive behavior (RB) was evaluated in 46 Bos indicus cows kept under grazing conditions. Temperature-humidity index (THI) was used as an indicator of stress and divided in alert, damage and emergency levels. Fat thickness (FAT) was taken during the last trimester of gestation (LTG) to approximately 90d postpartum (PP). At 30d PP animals received a progesterone (P4)-releasing device (CIDR) which was withdrawn 9d later. Ovarian activity was assessed by blood progesterone on days 21, 24, 27, 30, 49, 51, and 54 PP. Animals were divided into three groups, higher, and moderate RB and non-behavior. Sixty percent presented a THI >74 increasing dramatically from June to September up to >78. During LTG, animals lost 27% of their body reserves contrasting to PP where an increase of 2.6% (P=0.002) was observed. The percentages of cyclic and non-cyclic animals were 57 and 43%, respectively (P> 0.05). Seventy-two percent displayed RB and 28% were non-behavior (P<0.05). A negative correlation (r = -0.307; P = 0.038) between THI and RB, and a positive correlation (r = 0.427; P = 0.003) between the onset of ovarian activity and RB were observed. Differences in THI during the LTG (P<0.01) were observed between cyclic and non-cyclic animals. Non-behavior cows in the LTG had a higher THI (P <0.05). High levels of THI have a negative effect on the resumption of ovarian activity and RB in Bos indicus especially if high THI occurs during the last trimester of gestation.
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Affiliation(s)
- Ramiro Fernando Díaz
- Instituto de Investigaciones en Biomedicina, Universidad San Francisco de Quito, Quito, Ecuador.,Escuela de Medicina Veterinaria, Universidad San Francisco de Quito, Quito, Ecuador
| | - Carlos Salvador Galina
- Departamento de Reproducción, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | | | | | - Jose Luis Pablos
- Departamento de Genética y Bioestadística, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México, México
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KERKETTA S, MOHANTY TK, BHAKAT M, KUMARESAN A, BAITHALU R, GUPTA R, MOHANTY AK, ABDULLAH M, KAR S, RAO V, FAHIM A. Moosense pedometer activity and periestrual hormone profile in relation to oestrus in crossbred cattle. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2020. [DOI: 10.56093/ijans.v89i12.96634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The objective of the study was to establish the characteristics of pedometer activity in crossbred cows (20) and to determine the relationships between the pedometer activity and the serum concentrations of periestrual hormones. Animals in oestrus were detected by trained personnel based on oestrus behaviour by visual observation twice daily. Further oestrus was detected by pedometer activity and it was confirmed by serum progesterone and estradiol concentration. Individual animal daily activity data were collected and transformed into hourly activity in Excel sheet and arranged for statistical analysis. The relationship of pedometer activity with E2, E2: P4 and progesterone level on the day of oestrus was determined. Pearson correlation analysis was performed using the statistical package SPSS (SPSS Inc. USA). Activity count per hour (ACPH) increased from 248.51±22.46, 312.51±37.16, 323.52±49.24 and 423.42±47.77 from -3 day, -2 day and -1 day of proestrus, respectively to estrus day. After estrus, the activity decreased from 313.76±46.62 and 271.36±36.06 on the 1st day and 2nd day of metestrus, respectively. A similar trend was observed for serum E2 and E2: P4 which increased from 3 days before estrus to reach a peak level on the day of estrus (31.40±2.34 pg/ml) and declined after that to the basal level (2 pg/ml) after estrus. Contrary to this, P4 concentration showed a decreasing trend from –3 day proestrus to estrus (0.46±0.05) and then a gradual increase after estrus day. ACPH showed positive correlation with estradiol concentrations (r = 0.34; P = 0.0779) and E2:P4 ratio (r=0.50; P=2.077) but, negative correlation with progesterone concentration on day of oestrus (r=–0.73; P=2.74). In conclusion, our results suggested that the concentration of E2, E2:P4 ratio and P4 concentration during proestrus and on the day of estrus are the important factors contributing the behavioral manifestation of estrus in terms of ACPH in crossbred cows.
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Díaz BR, Galina CS, Rubio I, Corro M, Pablos JL, Orihuela A. Monitoring changes in back fat thickness and its effect on the restoration of ovarian activity and fertility in Bos indicus cows. Reprod Domest Anim 2018; 53:495-501. [DOI: 10.1111/rda.13136] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 12/14/2017] [Indexed: 11/30/2022]
Affiliation(s)
- BR Díaz
- Departamento de Reproducción; Facultad de Medicina Veterinaria y Zootecnia; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - CS Galina
- Departamento de Reproducción; Facultad de Medicina Veterinaria y Zootecnia; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - I Rubio
- Centro de Enseñanza Investigación y Extensión en Ganadería Tropical; Facultad de Medicina Veterinaria y Zootecnia; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - M Corro
- Centro de Enseñanza Investigación y Extensión en Ganadería Tropical; Facultad de Medicina Veterinaria y Zootecnia; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - JL Pablos
- Departamento de Genética y Bioestadística; Facultad de Medicina Veterinaria y Zootecnia; Universidad Nacional Autónoma de México; Mexico City Mexico
| | - A Orihuela
- Facultad de Ciencias Agropecuarias; Universidad Autónoma del Estado de Morelos; Cuernavaca Mexico
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Silper BF, Polsky L, Luu J, Burnett TA, Rushen J, de Passillé AM, Cerri RL. Automated and visual measurements of estrous behavior and their sources of variation in Holstein heifers. II: Standing and lying patterns. Theriogenology 2015; 84:333-41. [DOI: 10.1016/j.theriogenology.2014.12.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 11/27/2014] [Accepted: 12/02/2014] [Indexed: 11/16/2022]
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8
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Silper B, Robles I, Madureira A, Burnett T, Reis M, de Passillé A, Rushen J, Cerri R. Automated and visual measurements of estrous behavior and their sources of variation in Holstein heifers. I: Walking activity and behavior frequency. Theriogenology 2015; 84:312-20. [DOI: 10.1016/j.theriogenology.2014.12.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/28/2014] [Accepted: 12/02/2014] [Indexed: 11/24/2022]
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9
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Silper B, Madureira A, Kaur M, Burnett T, Cerri R. Short communication: Comparison of estrus characteristics in Holstein heifers by 2 activity monitoring systems. J Dairy Sci 2015; 98:3158-65. [DOI: 10.3168/jds.2014-9185] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/21/2015] [Indexed: 11/19/2022]
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10
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Pérez-Torres L, Rubio I, Corro M, Cohen A, Orihuela A, Galina CS, Pablos JL. A pre-synchronization program at early postpartum might increase the chances of Bos indicus cows cycling prior to 50 days regardless of the length of calf separation. J Reprod Dev 2015; 61:199-203. [PMID: 25739397 PMCID: PMC4498368 DOI: 10.1262/jrd.2014-114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The aim of this study was to establish if pre-synchronization would enhance the number of animals cycling prior to conventional breeding at 45 days irrespective of the length of calf separation. Multiparous Bos indicus cows were allotted in four groups (n = 10). Control group (C) dams remained with their calves; groups G24, G48 and G72, which were partially weaned for 24, 48 and 72 h, respectively, were estrus synchronized using a controlled internal drug. These procedures were performed at 25 days and again at 45 days postpartum. The number of follicles, presence of a corpus luteum and back fat thickness (BFT) were determined by ultrasound. The proportion of cows with estrus and ovulation at day 25 postpartum was statistically different between the control and treated groups, with the values being 20, 60, 50 and 70 for the control, G24, G48 and G72 groups respectively (P < 0.05). At days 45 postpartum, the proportion of cows with estrus and ovulation
was different in group G48 compared with the other groups (P <0.05). The average BFT and body condition score for the four experimental groups in the two periods were similar (P >0.05). Animals with a higher proportion of follicles from 17 to 21 mm, BFT values above 3.5 mm and a regular body condition were significantly different regardless of whether the dams remained with their calves or were separated, regardless of the length of this event. It can be concluded that (1) a pre-synchronization program at day 25 could trigger the onset of ovarian activity and facilitate a breeding program at day 50 and (2) temporary weaning enhances the effect of a pre-synchronization program.
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Affiliation(s)
- Libia Pérez-Torres
- Facultad de Ciencias Agropecuarias, Universidad Autónoma del Estado de Morelos, Morelos 62210, México
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11
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Maia KM, Peixoto GCX, Campos LB, Silva AMD, Castelo TDS, Ricarte ARF, Silva AR. Estrous Synchronization in Captive Collared Peccaries (Pecari tajacu) using a Prostaglandin F2α Analog. Zoolog Sci 2014; 31:836-9. [DOI: 10.2108/zs140112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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O'Neill CJ, Bishop-Hurley GJ, Williams PJ, Reid DJ, Swain DL. Using UHF proximity loggers to quantify male-female interactions: a scoping study of estrous activity in cattle. Anim Reprod Sci 2014; 151:1-8. [PMID: 25449547 DOI: 10.1016/j.anireprosci.2014.09.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 09/17/2014] [Accepted: 09/19/2014] [Indexed: 11/25/2022]
Abstract
Reproductive efficiency is an important determinant of profitable cattle breeding systems and the success of assisted reproductive techniques (ART) in wildlife conservation programs. Methods of estrous detection used in intensive beef and dairy cattle systems lack accuracy and remain the single biggest issue for improvement of reproductive rates and such methods are not practical for either large-scale extensive beef cattle enterprises or free-living mammalian species. Recent developments in UHF (ultra high frequency) proximity logger telemetry devices have been used to provide a continuous pair-wise measure of associations between individual animals for both livestock and wildlife. The objective of this study was to explore the potential of using UHF telemetry to identify the reproductive cycle phenotype in terms of intensity and duration of estrus. The study was conducted using Belmont Red (interbred Africander Brahman Hereford-Shorthorn) cattle grazing irrigated pasture on Belmont Research Station, northeastern Australia. The cow-bull associations from three groups of cows each with one bull were recorded over a 7-week breeding season and the stage of estrus was identified using ultrasonography. Telemetry data from bull and cows, collected over 4 8-day logger deployments, were log transformed and analyzed by ANOVA. Both the number and duration of bull-cow affiliations were significantly (P<0.001) greater in estrous cows compared to anestrus cows. These results support the development of the UHF technology as a hands-off and noninvasive means of gathering socio-sexual information on both wildlife and livestock for reproductive management.
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Affiliation(s)
- C J O'Neill
- CSIRO, Agriculture Flagship, Australian Tropical Science and Innovation Precinct, Building 145, James Cook Drive, Townsville, QLD 4814, Australia; School of Medical and Applied Sciences, CQUniversity, North Rockhampton, QLD 4701, Australia.
| | - G J Bishop-Hurley
- CSIRO, Agriculture Flagship, Queensland Bioscience Precinct, 306 Carmody Road, St. Lucia, QLD 4067, Australia.
| | - P J Williams
- Tropical Beef Technology Services, PO Box 809, Rockhampton, QLD 4700, Australia.
| | - D J Reid
- Agri-Science Queensland, DAFF, North Rockhampton, QLD 4701, Australia.
| | - D L Swain
- School of Medical and Applied Sciences, CQUniversity, North Rockhampton, QLD 4701, Australia.
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Fertility in Gyr Cows (Bos indicus) with Fixed Time Artificial Insemination and Visual Estrus Detection Using a Classification Table. J Vet Med 2014; 2014:404363. [PMID: 26464929 PMCID: PMC4590844 DOI: 10.1155/2014/404363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 07/26/2014] [Accepted: 07/28/2014] [Indexed: 11/18/2022] Open
Abstract
The aim of this research was to compare two artificial insemination protocols (AIP): hormonal synchronization with fixed time artificial insemination (SC-FTAI) and the use of a table based on visual observation of estrus signs (VO) in order to identify cows in natural or spontaneous estrus being assigned to AI (NSE-IA). Two groups were formed: in the first group 109 cows were assigned to SC-FTAI, in which a commercial protocol is used; the second one included 108 randomly chosen cows, which were assigned to NSE-AI and in this group a modified table was used. Response variable was first service fertility rate (FSF), which was coded 1 for pregnant and 0 for empty. Predictor variables were AIP, postpartum anestrus, daily milk yield, body condition score at AI and calving number. Statistical analyses included association chi-square tests and logistic regression. Results showed an overall 41.94% FSF and a significant association was detected (P < 0.05) between FSF and daily milk yield; pregnancy rates were 42.20% and 41.67% for the SC-FTAI and NSE-IA groups, respectively (P > 0.05). The odds ratio for the effect of AIP was only 1.050, suggesting no differences in FSF between groups. The NSE-AI protocol can enhance both the technique of VO and reproductive efficiency. Further validation of the table is required.
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Finger A, Patison KP, Heath BM, Swain DL. Changes in the group associations of free-ranging beef cows at calving. ANIMAL PRODUCTION SCIENCE 2014. [DOI: 10.1071/an12423] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Dyadic association between individuals forms the basis of group structures for herding animals. Group associations and social bonds are dynamic and can result in the establishment of new subgroups. The onset of parturition and the introduction of an offspring create a social change for a mother that is part of a herd. There is a need to nurture the young, develop and maintain a strong maternal bond, and build or maintain social networks within the larger herd. The present study explored associations within a herd of cattle that included pregnant cows and cows with calves (maternal cows). Group dynamics were determined by daily observations of group associations over an 11-week period. During the period, some pregnant cows calved and it was possible to quantify their associations before and post-calving. The associations between individual cows were quantified using a half-weight index (HWI). The HWI data for the maternal and pregnant class of cows were compared. The overall HWI data and the individual class data (pregnant or maternal) were tested against a random model, using data that were generated using permutation methods. There were significant differences in the associations of the pregnant and maternal cows; the maternal cows had stronger associations with other maternal cows while the pregnant cows showed evidence of weaker associations with other pregnant cows and the maternal cows. As pregnant cows calved, they developed stronger associations with other maternal cows. The present study provided evidence that pregnant cows prefer to maintain a degree of isolation, but strengthen their social bonds with other mothers as they enter a maternal phase.
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Kamal MM, Opsomer G, Parveen N, Momont HW, Shamsuddin M. Comparative efficacy of the synchrony programmes in subestrus crossbred cows at smallholder farms in Bangladesh. JOURNAL OF APPLIED ANIMAL RESEARCH 2013. [DOI: 10.1080/09712119.2013.792736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Alvarez-Gallardo H, Kjelland ME, Moreno JF, Welsh TH, Randel RD, Lammoglia MA, Pérez-Martínez M, Lara-Sagahón AV, Esperón-Sumano AE, Romo S. Gamete therapeutics: recombinant protein adsorption by sperm for increasing fertility via artificial insemination. PLoS One 2013; 8:e65083. [PMID: 23762288 PMCID: PMC3677874 DOI: 10.1371/journal.pone.0065083] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Accepted: 04/22/2013] [Indexed: 11/24/2022] Open
Abstract
A decrease in fertility can have a negative economic impact, both locally and over a broader geographical scope, and this is especially the case with regard to the cattle industry. Therefore, much interest exists in evaluating proteins that might be able to increase the fertility of sperm. Heparin binding proteins (HBPs), specifically the fertility associated antigen (FAA) and the Type-2 tissue inhibitor of metalloproteinase (TIMP-2), act to favor the capacitation and acrosome reaction and perhaps even modulate the immune system’s response toward the sperm. The objective of this research was to determine the effect on fertility of adding recombinant FAA (rFAA) and recombinant TIMP-2 (rTIMP-2) to bovine semen before cryopreservation for use in an artificial insemination (AI) program in a tropical environment. For this experiment, 100 crossbred (Bos taurus x Bos indicus) heifers were selected based on their estrus cycle, body condition score (BCS), of 4 to 6 on a scale of 1 to 9, and adequate anatomical conformation evaluated by pelvic and genital (normal) measurements. Heifers were synchronized using estradiol benzoate (EB), Celosil® (PGF2α) (Shering-Plough) and a controlled internal drug release (CIDR) device was inserted that contained progesterone. Inseminations were performed in two groups at random, 50 animals per group. The control group was inseminated with conventional semen. The treatment group was inseminated with semen containing rFAA (25 µg/mL) and rTIMP-2 (25 µg/mL). In the control group a 16% pregnancy rate was obtained versus a 40% pregnancy rate for the HBP treatment group, resulting in a significant difference (P = 0.0037). Given the results herein, one may conclude that the HBPs can increase fertility and could be an option for cattle in tropical conditions; however, one needs to consider the environment, nutrition, and the genetic interaction affecting the final result in whatever reproductive program that is implemented.
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Affiliation(s)
- Horacio Alvarez-Gallardo
- Centro Nacional de Recursos Genéticos - Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Tepatitlán de Morelos, Jalisco, México
| | | | - Juan F. Moreno
- Sexing Technologies, Navasota, Texas, United States of America
| | - Thomas H. Welsh
- Texas A&M University, College Station, Texas, United States of America
| | - Ronald D. Randel
- Texas A&M AgriLife Research-Overton, Overton, Texas, United States of America
| | - Miguel A. Lammoglia
- Facultad de Ciencias Biológicas y Agropecuarias, Universidad Veracruzana, Tuxpan, Veracruz, México
| | - Mario Pérez-Martínez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México, Distrito Federal, México
| | - Alma V. Lara-Sagahón
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán, Estado de México, México
| | - A. Enrique Esperón-Sumano
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán, Estado de México, México
| | - Salvador Romo
- Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán, Estado de México, México
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Layek S, Mohanty T, Kumaresan A, Behera K, Chand S. Cervical mucus characteristics and periestrual hormone concentration in relation to ovulation time in Zebu (Sahiwal) cattle. Livest Sci 2013. [DOI: 10.1016/j.livsci.2012.12.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Diaz D, Galina CS, Fiordelisio T, Rubio I, Alarcon MA, Rodriguez AD, Orihuela A. Relationship between growth of the preovulatory follicle and its steroidogenic activity on the onset and expression of estrus behavior in CIDR-treated Bos indicus cows: an observational study. Physiol Behav 2012; 107:262-70. [PMID: 22842198 DOI: 10.1016/j.physbeh.2012.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 07/19/2012] [Indexed: 10/28/2022]
Abstract
Estrus synchronization induces cows to gather in sexually active groups (SAGs) composed of females displaying mounting activity. Although this technique promotes the enhancement of sexual behavior, there are cows in estrus (CE) that delay estrus expression and also cows not displaying estrus (CNDE) even in the presence of a preovulatory follicle (PF). To elucidate the physiological mechanisms of the delay in the onset of estrus or absence of estrus behavior, an observational study was undertaken in 17 Bos indicus cows treated with exogenous progesterone (CIDR) to synchronize estrus and to monitor follicular growth and its steroidogenic activity. After SAGs formation, cows were ovariectomized at 24, 48, and 72 h post-CIDR. Among ovariectomized groups there were only 9 CE which: 1) showed differences in the onset of estrus; 2) displayed distinctive follicular growth patterns; and 3) at 72 h produced the highest intrafollicular estradiol concentration, and showed a linear trend to increase expression of P450scc and P450arom. Comparison of CE vs. CNDE showed that: 1) both groups had progesterone levels indicative of cyclic activity, and a PF which grew at a similar rate and size; 2) CE showed a stronger association between time and growth; and 3) CE produced more intrafollicular estradiol and progesterone, together with the expression of higher levels of P450arom. Results suggest that pending on the pattern of growth of the PF and its steroidogenic potential to produce estradiol, the onset and expression of estrus behavior may be delayed probably until the establishment of the appropriate conditions to ensure ovulation.
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Affiliation(s)
- Daniel Diaz
- Departamento de Reproducción, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad Universitaria 04510, México, DF, Mexico.
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Behavioural signs of estrus and their relationship to time of ovulation in Zebu (Sahiwal) cattle. Anim Reprod Sci 2011; 129:140-5. [PMID: 22178054 DOI: 10.1016/j.anireprosci.2011.11.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 11/05/2011] [Accepted: 11/19/2011] [Indexed: 11/24/2022]
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