Reproductive losses caused by the ingestion of Poincianella pyramidalis in sheep

Lopes, José R.G.; Santos, José Rômulo Soares dos; Medeiros, Márcia Alves de; Campos, Édipo Moreira; Riet-Correa, Franklin; Medeiros, Rosane M.T.

doi:10.1016/j.toxicon.2017.08.020

Cited by 10 publications

(9 citation statements)

References 13 publications

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“…As demonstrated in goats, that ingested fresh leaves of C. pyramidale (Reis et al 2016), the primary malformations were also related to the limbs. The same findings were mentioned by Lopes et al (2017), who tested doses of 10, 20, and 40% (within 2% of the doses supplied by roughage of the animals) of dry leaves of C. pyramidale for three groups of four ewes from the 18th day of gestation. Of the animals that ingested a 20% dose, three animals (75%) had a preterm birth over 120 days of gestation, and one (25%) gave birth to a lamb with bilateral arthrogryposis of the thoracic limbs.…”

Section: Discussionsupporting

confidence: 74%

“…As seen in Stage 3, despite the low doses and the start of consumption occurring on the 26 th day of gestation, there were essential losses such as abortion and placental retention. The latter was not mentioned in similar studies in the northeastern semiarid region (Dantas et al 2010, Santos et al 2012, Lopes et al 2017 and had not been recorded in the herd of ewes where the study was carried out. As the ewes in Stage 3 came from the Brazilian Midwest, where there is no occurrence of C. pyramidale and M. tenuiflora, it is suggested that the lack of contact of these animals with these plants has led to a greater predisposition to this alteration.…”

Section: Discussionmentioning

confidence: 83%

“…Gagnon & G.P. Lewis is teratogenic for goats (Reis et al 2016), rats (Câmara et al 2017), and sheep (Lopes et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Embryonic loss, abortion, and malformations in ewes caused by the ingestion of hay leaves of Cenostigma pyramidale

et al. 2020

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Determining if reproductive failures in ewes at the semiarid region in the state of Bahia are related to the consumption of the species Cenostigma pyramidale (Tul.) Gagnon & G.P. Lewis, and this study was developed using pregnant ewes divided into six groups: G1, G2, G3, G4 with six animals each, G5 and G6 with ten animals. Each group received fence leaves in the proportion of 1%, 2%, 0.5%, and 0.25% of live weight (LW) respectively; G5 and G6, with ten animals each, receiving 0.25% and 0.5% of the LW, respectively, and the Control Group, comprising 16 ewes, were grass feeding (Cynodon dactylon). Ewes from G1 to G4 were the same, except for two, and started ingestion of the plant four days after ending of natural mating on the 80th day of gestation, while those regarding from G5 to G6 groups started ingestion on the 26th day of gestation ending on the 98 day. The ultrasonographic test was performed weekly. In G1 ewes (1%), there was an embryonic loss on the 32nd and 39th days of gestation and abortion on the 46th day. In G2 (2%), the embryo loss was earlier (on the 26th day of gestation), and abortion on the 46th day of gestation. In G3 group (0.5%), there was an embryonic loss around the 40th day of gestation. In G4 group (0.25%), it was observed the occurrence of one death lamb with bone malformations. In G6 (0.5%), abortion occurred later (108 days), followed by retained placenta. This was also verified in G5 group (0.25%). The presence of fetal malformation was found in death lambs born in G4 group, born alive from G5 and G6 groups, and one aborted from G6. In G5 and G6 groups, there were also genetic alterations on surviving lambs. In addition to these results, recurrent estrus was observed without gestation in G1, G2, G3, and G4 ewes. From the Control Group, 13 normal lambs were born without genetic alterations; furthermore, concerning a quadruple birth, three lambs were born dead. The results infer that species of C. pyramidale in low doses causes reproductive losses in pregnant ewes, therefore it is not recommended for sheep diet over the first 60 days of gestation.

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Section: Discussionsupporting

confidence: 74%

Section: Discussionmentioning

confidence: 83%

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Embryonic loss, abortion, and malformations in ewes caused by the ingestion of hay leaves of Cenostigma pyramidale

et al. 2020

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“…In the Northeast region of Brazil, consumption of C. pyramidale is related to the occurrence of reproductive changes in female sheep and goats (Reis et al 2016, Lopes et al 2017. This plant is associated with one of the leading causes of abortion, embryonic mortality, and malformation in goats and sheep in the northeastern semi-arid region, being necessary to keep it out of the reach of females during pregnancy (Marcelino et al 2017.…”

Section: Introductionmentioning

confidence: 99%

“…This plant is associated with one of the leading causes of abortion, embryonic mortality, and malformation in goats and sheep in the northeastern semi-arid region, being necessary to keep it out of the reach of females during pregnancy (Marcelino et al 2017. Reproduction experiments conducted with goats (Reis et al 2016) and sheep (Lopes et al 2017) have proved that this plant causes congenital malformations, embryonic losses, and abortion and that the malformations observed in the animals studied were similar to those described by producers of the semi-arid region of the state of Bahia in cases of natural poisoning.…”

Section: Introductionmentioning

confidence: 99%

Testicular and seminal evaluation of goats fed hay Cenostigma pyramidale

et al. 2020

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This study aimed to assess the possible occurrence of reproductive changes in male goats associated with ingestion of Cenostigma pyramidale hay. Sixteen animals divided into two experimental groups, G1 and G2 (control group) were used. Animals in G1 received 2% of forage, based on live weight (LW), composed of 100% of C. pyramidale, and animals in G2 received 2% of Panicum maximum “Massai’ grass hay, based on LW. Both groups received 1% of concentrated feed supplementation based on LW, along with mineralized salt and water ad libitum. The goats were subjected to weighing, testicular biometry, and semen and blood collection every 30 days. After 120 days, the animals were castrated and their testes were collected. Testicular measurements were performed and fragments were collected for histological processing to determine the gonadosomatic index (GSI), diameter of the seminiferous tubules, height of the germinal epithelium (HGE), volumetric proportion and volume of the testicular parenchyma components, total length of the seminiferous tubules, length of the seminiferous tubules per gram of testis, and leydigosomatic and tubulosomatic indexes. The data were evaluated for normality using the Student’s t-test. Data with normal distribution were assessed using analysis of variance (ANOVA) and the non-parametric data were evaluated using the Kruskal-Wallis test, both at 5% probability. Statistically significant differences (p<0.05) were observed for GSI (G1=0.48 ±0.08 and G2=0.34 ±0.09) and HGE (G1=52.95 ±2.99 and G2=.47.63 ±2.67) between treatments. Consumption of C. pyramidale hay increased LW and, consequently, testicular weight, contributing to high GSI. In conclusion, ingestion of C. pyramidale has no toxic effect on the testicular, seminal and histological parameters of goat testis. Due to its nutritional characteristics, consumption of this plant improves animal body development. Because C. pyramidale is adapted to semi-arid regions, it can be an alternative source of feed for goats during periods of shortage.

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Water storage of a typical tree species in the Caatinga biome (Caesalpinia pyramidalis Tul.)

Costa,

Vellame,

Costa

et al. 2023

Hydrological Processes

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Our understanding of the movement and storage of water in typical Caatinga plants is still limited and often disregarded in water balance calculations. This is why the objective of this work was to evaluate the water storage dynamic in typical trees of the Caatinga biome during the dry, rainy and transition period by gauging the water content levels that cause the onset of leaf emergence. In a preserved Caatinga forest, soil and stem water content of six trees of the representative species catingueira (Caesalpinia pyramidalis Tul.) were monitored with low‐cost capacitive sensors. Leaf moisture, leaf area index, leaf and stem water volume, and sap flow density were measured. The emergence of leaves occurred with a stem moisture of 0.32 m3 m−3, and the leaf area index was maximum with a stem moisture of 0.34 m3 m−3. Catingueira plants are able to absorb water below the soil water potential commonly determined as the permanent wilting point (−1.5 MPa). The volume of water stored in the plants represents 108% of the average volume stored in the Boqueirão reservoir during the study period.

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Reproductive losses caused by the ingestion of Poincianella pyramidalis in sheep

Cited by 10 publications

References 13 publications

Embryonic loss, abortion, and malformations in ewes caused by the ingestion of hay leaves of Cenostigma pyramidale

Embryonic loss, abortion, and malformations in ewes caused by the ingestion of hay leaves of Cenostigma pyramidale

Testicular and seminal evaluation of goats fed hay Cenostigma pyramidale

Water storage of a typical tree species in the Caatinga biome (Caesalpinia pyramidalis Tul.)

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