Effect of restricted suckling on the onset of follicular dynamics and body condition score in Brahman cattle raised under tropical conditions

Mondragón, Violeta; Galina, C.S.; Rubio, I.; Corro, Manuel; Salmerón, Fernando

doi:10.1016/j.anireprosci.2016.02.011

Cited by 17 publications

(22 citation statements)

References 28 publications

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“…This is likely the consequence of the time postpartum when the treatment was applied (Rhodes et al., ). In the present study, almost 20% of the cows did not cycle during the duration of the experimental period; similar results have been reported previously (Mondragón et al., ; Pérez‐Torres et al., ). These animals coincidently experienced FAT losses after parturition.…”

Section: Discussionsupporting

confidence: 92%

“…Previous reports have shown that hormonal treatments prior to 30 days postpartum could enhance the probability of animals becoming pregnant soon after calving either using artificial insemination (Mondragón, Galina, Rubio, Corro, & Salmerón, 2016;Pérez-Torres et al, 2015) or natural mating (Lamb et al, 2008). Nonetheless, the variability of the response could be due to fluctuations in the metabolic profile of the animals.…”

Section: Introductionmentioning

confidence: 99%

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Monitoring changes in back fat thickness and its effect on the restoration of ovarian activity and fertility in Bos indicus cows

Díaz

Galina

Rubio

et al. 2018

Reprod Domestic Animals

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With the objective of testing the hypothesis if animals with a stable layer of body fat (FAT) during the peripartum have a better chance of becoming pregnant after calving, fifty-nine multiparous Brahman cows in their last trimester of pregnancy were used. Animals averaged four parturitions and were stocked at a rate of 1.25 animal units per hectare and divided into two groups depending on the time postpartum (dpp) that the intravaginal releasing device CIDR was inserted; Group 1 (<30 dpp; n = 30) received the implant at 25.2 ± 4.21 and withdrawn 9 days later. Group 2 (≥30 dpp; n = 29) received the CIDR at 38.41 ± 5.8. Animals were AI at detected oestrus until 170 dpp and calculated as pregnant at first service or requiring more than one service (1s and >1s), not pregnant but cycling (not pregnant) and those not cycling at all (anestrus). The FAT measurements were taken twice each month from the last trimester of gestation until 96 dpp. The onset of ovarian activity was monitored through blood levels of progesterone (P4) at days 14 and 9 prior to CIDR insertion and days 10, 13, 30 and 33 after CIDR withdrawal. Animals pregnant did not have any major changes in their fat thickness. In contrast, cows pregnant in the group ≥30 dpp had changes in their FAT homoeostasis, and pregnant animals in the 1s and >1s groups did not show differences in dorsal back fat in the last trimester of pregnancy and early postpartum. In contrast, animals not pregnant and in anestrus FAT values decreased considerably after parturition. Overall, fertility was 49%, but 18% of all the animals remained anestrus losing FAT. Thus, animals with adequate metabolic conditions will have a better chance of pregnancy regardless of the time postpartum when the reproductive programme starts.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Monitoring changes in back fat thickness and its effect on the restoration of ovarian activity and fertility in Bos indicus cows

Díaz

Galina

Rubio

et al. 2018

Reprod Domestic Animals

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“…There is a considerable number of publications on the subject by Baruselli et al [64]. In a broader sense, drug treatments can be helpful if the animals have adequate body condition, but risks of impaired follicular growth and reduced fertility can be found if animals are borderline in this respect prior to or at the time of treatment [65,66].…”

Section: Weaning Methodsmentioning

confidence: 99%

“…In effect, calf separation for 72 h seems to be the most logical way to mimic the duration of the proestrus phase and thereby achieve more acceptable growth of the follicular milieu. In fact, Mondragón et al [65] and Xavier et al [66] found that follicular diameter can be impaired if suckling continues as compared to calf separation with a possible detrimental effect on fertility.…”

Section: Weaning Methodsmentioning

confidence: 99%

Effects of Separation of Cows and Calves on Reproductive Performance and Animal Welfare in Tropical Beef Cattle

Orihuela

Galina

2019

Animals

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Nursing a calf suppresses postpartum ovarian activity prolonging the period of anestrus. Diverse methods are used to reduce the effect of suckling; the most popular, restricted suckling, reduces the number of encounters mother-calf. Temporal weaning of the calf for periods of 24 h, 48 h, or even 72 h also suppress the effect of suckling and is commonly applied to cow-calf operations in the tropics. Early weaning of the calf, usually three to five months after birth, is a practice gaining popularity over the traditional system of weaning at seven months. Furthermore, the use of nose-flaps in the calf to avoid suckling is a common procedure in South America. Finally, weaning during the first week after calving is an established method to reduce postpartum anestrus. The objective of the present review is to discuss the effects of these methods on the reproductive performance of beef cattle and their animal welfare implications.

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“…Restricted suckling. This consists of limiting contact between calf and mother for periods of 20 to 120 minutes per day during seven days before mating season, which increases the incidence of estrus and ovulations, and can be started at 45 days postpartum (Mondragón et al, 2016) and up to 13 points in the percentage of gestation (Rodríguez and Segura, 1995), without affecting calf weight gains as long as they are provided with concentrated feed, good quality forage and clean water during the restriction period (Pérez-Hernández et al, 2001). In order to obtain an adequate response, it is important to have a good nutritional status of the mother (Montiel and Ahuja, 2005).…”

Section: Postpartum Anestrus and Sucklingmentioning

confidence: 99%

Reproductive management strategies to reduce postpartum anestrus in dual-purpose cattle

González-Maldonado

Garcia-Winder²,

Gallegos‐Sánchez

et al. 2021

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Objective: To share technical aspects and recommendations to improve the reproductive and productive efficiency of dual-purpose cattle. Design/Methodology/Approach: A review of scientific articles published in journals was carried out to show the importance of some factors that limit reproduction, as well as to identify management strategies to increase the reproductive potential in dual-purpose cows. Results: The duration of postpartum anestrus is reduced by weaning calves at a few days or weeks of age, restricting suckling to short periods of the day, delaying suckling, and exposing cows to a bull during postpartum. On average, the combined effect of delayed suckling and exposure of cows to a bull reduces postpartum anestrus to less than 50 d and the calving-conception interval to 84 days. Milk production and calf weight gain also are improved without affecting postpartum weight changes in cows. Study Limitations/Implications: Extensive management of dual-purpose cattle reduces the intensive use of some reproductive biotechnologies commonly applied in other animal production systems. Findings/Conclusions: Improvement in the reproductive efficiency of dual-purpose cattle can be achieved by reducing the postpartum anestrus by using reproductive management strategies and minor modifications to common management practices.

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Effect of restricted suckling on the onset of follicular dynamics and body condition score in Brahman cattle raised under tropical conditions

Cited by 17 publications

References 28 publications

Monitoring changes in back fat thickness and its effect on the restoration of ovarian activity and fertility in Bos indicus cows

Monitoring changes in back fat thickness and its effect on the restoration of ovarian activity and fertility in Bos indicus cows

Effects of Separation of Cows and Calves on Reproductive Performance and Animal Welfare in Tropical Beef Cattle

Reproductive management strategies to reduce postpartum anestrus in dual-purpose cattle

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