Significance of atrophic ovaries in livestock production in northern Nigeria

Kumi-Diaka, J.; Ogwu, D; Osori, DI

doi:10.1136/vr.108.13.277

Cited by 8 publications

(3 citation statements)

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“…This compares with a figure of 5-2% obtained from milk progesterone in cows up to Day 50 post partum (Bulman & Lamming, 1978). Clinical survey data on zebu from Africa, and from India, have shown that 58-84-8% of functional reproductive failures are attributed to atrophie ovaries and the absence of ovarian cyclicity (Kumi-diaka, Ogwu & Osori, 1981;Rao, 1982).…”

Section: Ovarian Abnormalitiesmentioning

confidence: 74%

A review of female cattle reproduction with special reference to a comparison between buffaloes, cows and zebu

Dobson¹,

Kamonpatana²

1986

Reproduction

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Section: Ovarian Abnormalitiesmentioning

confidence: 74%

A review of female cattle reproduction with special reference to a comparison between buffaloes, cows and zebu

Dobson¹,

Kamonpatana²

1986

Reproduction

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“…A single case of ovarian atrophy and ovarian tumour was noticed. A study in 3000 cattle showed that 19.3% of the anoestrum occurred as a result of ovarian atrophy 17 . The occurrence of tumours in goats has been found low, ranging from 0.8%-7.6% 18 .…”

Section: Discussionmentioning

confidence: 99%

Occurrence of pathological conditions in the female genitalia of goats

Beena¹,

Pawaiya²,

Shivasharanappa³

et al. 2015

Ind. Jour. Veter. Pathol.

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The present study was conducted with the aim to record the pathological conditions in the female genital tract of goats. A total of 660 female genital tracts of goats were collected randomly from various slaughter houses as well as from CIRG post-mortem house regardless of breed and age (3 months to 8 years old) of the animals. Out of total 660 samples collected and examined, 154 (23.32%) revealed different types of pathological conditions. Highest occurrence of pathological conditions was observed in the uterus (53.24%), followed by those in the ovary (25.97%), cervix (11.03%), fallopian tubes (5.19%) and vagina (4.54%). Endometritis (37/154; 24.02%) was the most common pathological lesion followed by ovarian cyst (22/154; 14.28%). Other pathological conditions included congenital anomalies (3/154; 1.94%), hydrosalpinx (2/154; 1.29%), cervicitis (10/154; 6.4%), vaginitis (3/154; 1.94%) etc. Abnormalities like ovarian tumour, hydrometra, retention of placenta and uterine pigmentations were also recorded.In this study thelesions that could result into infertility or sterility of the goats occurred in 12.7% ofther eproductive systems examined.

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“…Inactive ovaries show no change in the ovary size, which is elastic, without follicles or CL. If the ovaries become small, hard and lack elasticity, then ovarian atrophy has occurred (Kumi-Diaka et al 1981;Van Straten et al 2008). When lactating cows are in a NEB state, the secretion of gonadotrophin releasing hormone and LH is restrained, leading to a shortage of these hormones (Canfield and Butler 1990).…”

Section: Classification Of Anoestrusmentioning

confidence: 99%

Investigation of negative energy balance and postpartum anoestrus in an intensive dairy farm from the Chinese province of Heilongjiang

Fan

Sheng

et al. 2017

Acta Vet. Brno

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The aim of this investigation was to determine the relationship between postpartum anoestrus and negative energy balance in an intensive dairy farm from the Heilongjiang Province, China. At 14 to 21 d after parturition, 100 cows were randomly selected and their plasma indices, including β-hydroxybutyric acid, non-esterified fatty acid, and glucose were measured. Cows were assigned to a positive energy balance group (n = 37) and a negative energy balance group (n = 36) based on their β-hydroxybutyric acid concentrations (> 1.20 mmol/l). The two groups of cows were examined by B-mode ultrasonography and rectal examination from 60 to 90 d after parturition to identify the ovarian status of oestrous and anoestrous animals. The incidences of negative energy balance and positive energy balance were 49 and 57%, respectively, from14 to 21 d after parturition. From 60 to 90 d after parturition, 94.4% of the negative energy balance group were in anoestrus and 5.6% were in oestrus, while 62.2% of the positive energy balance group were in anoestrus and 37.8% were in oestrus. Furthermore, the proportion of inactive ovaries in the negative energy balance group was 61.8%. In conclusion, the negative energy balance is an important factor causing inactive ovaries in high-yielding dairy cows. Dairy cows, postpartum anoestrus, negative energy balanceAnoestrus is defined as displaying no obvious signs of oestrus and no functional ovarian activity from 60 to 90 d after parturition in dairy cows which should gradually display signs of oestrus as the body and genitals recover to their normal conditions (Montiel and Ahuja 2005). Postpartum anoestrus in cows is usually classified into physiological and pathological anoestrus. The former consists mainly of a silent oestrus or no oestrous signs, and the latter is true anoestrus without the ovarian cycle and ovulation (Breukink and Wensing 1998). The latter includes (1) inactive ovaries, (2) persistent corpus luteum (Mwaanga and Janowski 2000); (3) corpus luteum cysts; or (4) ovarian cysts.In recent decades, there has been a dramatic change in the breeding mode and scale of dairy farms in the Heilongjiang Province. With the improvement of milk yield (MY), the incidence of reproductive disturbances in cows gradually increased. Up to a 50% incidence of postpartum anoestrus occurs in high-yielding cows (López-Gatius et al. 2008). The high incidence of postpartum anoestrus is related to the negative energy balance (NEB), which may cause body weight loss after parturition, which reduces the secretion of the follicle-stimulating hormone, leading to high rates of anoestrus and low conception rates (Staples et al. 1990). The occurrence of anoestrus in high-yielding cows caused by the postpartum NEB has become a common reproductive disturbance. Therefore, an investigation of postpartum anoestrus was conducted at an intensive dairy farm in the Heilongjiang Province to reveal its incidence and aetiology, and to provide scientific data useful for preventing postpartum anoestrus in dairy cows i...

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Significance of atrophic ovaries in livestock production in northern Nigeria

Cited by 8 publications

References 0 publications

A review of female cattle reproduction with special reference to a comparison between buffaloes, cows and zebu

A review of female cattle reproduction with special reference to a comparison between buffaloes, cows and zebu

Occurrence of pathological conditions in the female genitalia of goats

Investigation of negative energy balance and postpartum anoestrus in an intensive dairy farm from the Chinese province of Heilongjiang

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