Environmental constrains on post-partum ovarian activity in Tanzanian Zebu cows

Matiko, M. K.; Kanuya, N.L.; Waldmann, A.; Ropstad, Erik; Reksen, O.

doi:10.1016/j.theriogenology.2008.01.003

Cited by 13 publications

(6 citation statements)

References 21 publications

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“…Lobago et al (2007) in Ethiopia also reported that luteal activity commenced in 32.6% of suckled cross-bred dairy cows by 52 days post-partum while in the remaining cows (67.4%) activity was delayed. Under pastoral conditions in Tanzania, Matiko et al (2008) reported that postpartum luteal activity was delayed up to 167 days after calving; prolonged luteal activity was not reported as a category in this study. The studies on cross-bred cows agree with our findings that early post-partum P4 rise and content after start to end of study period (day 56) post-partum was repeatable every 18-24 days.…”

Section: Discussioncontrasting

confidence: 66%

“…Under pastoral conditions in Tanzania, Matiko et al. () reported that post‐partum luteal activity was delayed up to 167 days after calving; prolonged luteal activity was not reported as a category in this study. The studies on cross‐bred cows agree with our findings that early post‐partum commencement of luteal activity with continued regular cyclicity is possible in at least 20% of the cross‐bred dairy cows under tropical conditions.…”

Section: Discussioncontrasting

confidence: 56%

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Husbandry Factors and the Resumption of Luteal Activity in Open and Zero‐Grazed Dairy Cows in Urban and Peri‐Urban Kampala, Uganda

Kanyima

Båge

Owiny

et al. 2014

Reprod Domestic Animals

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ContentsThe study investigated the influence of selected husbandry factors on interval to resumption of post-partum cyclicity among dairy cows in urban and peri-urban Kampala. A prospective study of 85 day post-partum period of 59 dairy cows in open (n = 38) and zero grazing (n = 21) systems was conducted on 24 farms. Cows of parity 1–6 were recruited starting 15–30 days post-partum. Progesterone (P4) content in milk taken at 10–12 day intervals was analysed using ELISA. The cow P4 profiles were classified into ‘normal’ (< 56 days), ‘delayed’ (> 56 days), ‘ceased’ or ‘prolonged’ (if started < 56 days but with abnormal P4 displays) resumption of luteal activity and tested for association with husbandry and cow factors. Of the 59 cows, luteal activity in 81.4% resumed normally and in 18.6%, delayed. Only 23.7% maintained regular luteal activity, while the others had ceased (10.2%), prolonged (37.3%) or unclear luteal activity (20.3%). There were no differences between open and zero-grazed cows. Milk production was higher (p < 0.05) in zero than open grazing, in urban than peri-urban and in cows fed on brew waste (p < 0.001) compared with mill products and banana peels. Results suggest that luteal activity resumes normally in a majority of cows, although only a minority experienced continued normal cyclicity once ovulation had occurred, in the two farming systems irrespective of feed supplements or water, and that supplementing with brew waste is beneficial for milk production.

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Section: Discussioncontrasting

confidence: 66%

Section: Discussioncontrasting

confidence: 56%

Husbandry Factors and the Resumption of Luteal Activity in Open and Zero‐Grazed Dairy Cows in Urban and Peri‐Urban Kampala, Uganda

Kanyima

Båge

Owiny

et al. 2014

Reprod Domestic Animals

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“…It was also noticed that cows in their 8th parity mostly suffered retained placenta. The significance of parity in reproduction has been emphasized in previous studies [22,23]. Parity still remains a substantial predictor of cow reproductive conditions in most communal farms.…”

Section: Discussionmentioning

confidence: 97%

Cattle Production Management Practices Predisposing Animals to the Incidences of Reproductive Failures in Small Scale Farming

Molefe¹,

Mwanza²

2019

JAST-A

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Preparing for an effective animal reproduction requires proper management practices before parturition. This study aimed to identify cattle production management practices that predispose cows to the incidences of reproductive conditions in small scale farming. One hundred and thirty-five (135) structured questionnaires were used to obtain information from the farmers following reported cases of dystocia, downer cow syndrome, retained placenta, vaginal prolapse and abortion in cows at the North West University animal hospital. The data included information such as cow age, parity, breed, number of incidence of the conditions, feeding system, feed type, whether or not the animals were supplemented, supplement type, condition experienced by the cow, vaccination status, cow's Brucellosis status and access to veterinary services were also assessed. The data were analyzed in Statistical Product and Service Solutions (SPSS) version 25 using descriptive statistics, Chi square and Stage-Two Cluster analysis. The results showed that the factors significantly related (p < 0.05) to the incidences of reproductive conditions were cow breed, parity, feeding system, whether the farmer has heard about Brucellosis and the frequency of getting animals checked by a veterinarian. The study found that in communal areas, herds with Afrikaner breeds, when farmers have not heard about Brucellosis, when cows are the first parity, while they are in free ranging method of feeding and with an annual veterinary checkup mostly experience abortions. Implementation of management strategies for the improvements of farming methods in communal farming is necessary to change the state of livestock agriculture through the reduction of reproductive failures in small scale farmer.

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“…Matiko et al (2008), analysing three management systems, reported that Tanzanian Zebu cows had prolonged intervals between first and second parities due to an 8-month delay in the onset of ovarian activity after calving compared to cows in their third or later parity (6 months). In our study, the overall average CI results are similar to those obtained by Catalão and Syrstad (1990), Scholtz and Lombard (1992) and Carvalheira et al (1995) for the Nguni and Landim ecotypes.…”

Section: Discussionmentioning

confidence: 99%

Factors influencing reproductive performance of cows from different Nguni ecotypes in southern Mozambique

Maciel

Amimo

Martins³

et al. 2011

Trop Anim Health Prod

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The objective of this study was to assess the reproductive performance of two Nguni ecotypes (Nguni and Landim) raised in a subtropical environment to enhance strategies for livestock development and restocking programmes within the southern African region. Reproduction data collected between 1996 and 2009 from 365 cows of the Landim and Nguni ecotypes were analysed. From the results, ecotype, place of birth, year and season of birth/calving had significant effects on age at first calving (AFC) and calving interval (CI). Overall means for AFC and CI were 1,071 ± 166 days and 432 ± 85 days, respectively, while average calving rate was 88.0 ± 4.7%. Heifers born in the dry season had lower AFC than heifers born in the wet season. Heifers born at Impaputo Breeding Center were the youngest at first calving, followed by the South African born ones. Heifers of the Landim ecotype also calved younger than heifers of the Nguni ecotype. CI was shorter in wet seasons (main breeding seasons) than in dry seasons. Interaction between ecotype and year-season (p < 0.005) showed that, in wet and dry seasons, Nguni cows had shorter CI than the Landim. This study demonstrates for the first time a possible genotype-by-environment interaction between Nguni ecotypes. This might aid future cattle development and restocking programmes in southern Africa taking into consideration the adaptation of indigenous genotypes and climate change.

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Environmental constrains on post-partum ovarian activity in Tanzanian Zebu cows

Cited by 13 publications

References 21 publications

Husbandry Factors and the Resumption of Luteal Activity in Open and Zero‐Grazed Dairy Cows in Urban and Peri‐Urban Kampala, Uganda

Husbandry Factors and the Resumption of Luteal Activity in Open and Zero‐Grazed Dairy Cows in Urban and Peri‐Urban Kampala, Uganda

Cattle Production Management Practices Predisposing Animals to the Incidences of Reproductive Failures in Small Scale Farming

Factors influencing reproductive performance of cows from different Nguni ecotypes in southern Mozambique

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