Growth performance and reproductive function impairment of glyphosate‐based herbicide in male guinea pig ( Cavia porcellus )

The diversification of animal protein sources is a beneficial strategy to fill the protein deficit that all developing countries like Cameroon are facing. This work was initiated with the aim of increasing the productivity of guinea pigs through the use of avocado seed extracts. Four experimental rations (T0, T1, T2 and T3) were formulated with graded level of avocado seed extracts (0; 100 g; 200 g and 300 g of extracts per 100 kg of food respectively). Each treatment was tested on 15 females and 3 males divided into 3 subgroups. The results reveal that the mean weights of the animals were significantly the highest: at farrowing (87.00 g); at weaning (160.80 g) and at 8 weeks of age (234.40 g) were obtained with the T1 treatment. The significantly highest total gains (147.4 g) were obtained with the T1 treatment, the T3 treatment having given the lowest mean gain. In animals receiving T0 and T1 treatments, the level of lactobacilli was higher than the level of E. coli. The reverse was observed with T2 and T3 treatments. The use of avocado seed extracts can be considered at an incorporation rate of 100 g / 100 kg in guinea pigs feed. La diversification des sources de protéines animales est une stratégie salutaire pour combler le déficit protéique dont font face tous les pays en développement à l’instar du Cameroun. Ce travail a été initié dans l’optique d’accroître la productivité des cobayes à travers l’utilisation des extraits de noyaux d’avocat (ENA). Quatre rations expérimentales (T0, T1, T2 et T3) ont été formulées contenant respectivement 0 ; 100 g ; 200 g et 300 g de ENA pour 100 kg d’aliment. Chacune des rations a été testées sur 15 femelles et 3 mâles divisés en 3 sous-lots de 6 sujets chacun. Les résultats ont révélé que les poids moyens des animaux significativement les plus élevés : à la mise bas (87,00 g) ; au sevrage (160,80 g) et à 8 semaines d’âge (234,40 g) ont été obtenus avec les animaux recevant 100 g/100 kg d’extrait de noyau d’avocat (T1). Les gains totaux significativement les plus élevés (147,4 g) ont été obtenus avec le traitement T1, le traitement T3 ayant donné le gain moyen le plus bas. Chez les animaux recevant les traitements T0 et T1, le taux de lactobacilles a été supérieur au taux de colibacilles. L’inverse a été observé avec les traitements T2 et T3. L’utilisation des extraits des noyaux d’avocat peut être envisagée à un taux d’incorporation de 100g/100kg d’aliment chez le cobaye.

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Design‐based stereological study of the guinea‐pig ( Cavia porcellus ) cerebellum

Journal of Anatomy ◽

10.1111/joa.13434 ◽

2021 ◽

Author(s):

Margherita De Silva ◽

Javad Sadeghinezhad ◽

Jens R. Nyengaard ◽

Mahdi Aghabalazadeh Asl ◽

Ava Saeidi ◽

...

Keyword(s):

Guinea Pig ◽

Cavia Porcellus

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Source and stability of attractive components in guinea pig (Cavia porcellus) urine

Behavioral Biology ◽

10.1016/s0091-6773(73)80167-1 ◽

1973 ◽

Vol 9 (1) ◽

pp. 43-47 ◽

Cited By ~ 30

Author(s):

Gary K. Beauchamp ◽

Josef Berüter

Keyword(s):

Guinea Pig ◽

Cavia Porcellus

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Facial reconstructive surgery after tumour removal in a guinea pig (Cavia porcellus)

Companion Animal ◽

10.12968/coan.2020.0071 ◽

2021 ◽

Vol 26 (1) ◽

pp. 1-4

Author(s):

Anna Linda Nógrádi ◽

Judit Kojer ◽

Dóra Csatári ◽

Iain Cope ◽

Tibor Németh

Keyword(s):

Guinea Pig ◽

Reconstructive Surgery ◽

Skin Flap ◽

Advancement Flap ◽

Cavia Porcellus ◽

Post Surgery ◽

Tumour Removal ◽

Nerve Sheath ◽

Peripheral Nerve Sheath Tumour ◽

Made In

A 2-year-old male guinea pig (Cavia porcellus) presented with a pea-sized swelling on his right labium. The tumour was excised and reconstructive surgery was performed using a single pedicle advancement flap, leaving the bottom of the lip intact on account of it being essential for food apprehension and manipulation. Two parallel skin incisions were made in the rostrocaudal direction for almost half the length of the head and the resulting skin flap was carefully undermined, to avoid damaging the follicles and the muscles of the whiskers. The flap was carefully sutured over the excisional defect and at 1.5 months post-surgery, only a small residual scar remains. The lips are intact, the surgical site is covered with fur and many of the whiskers have regrown. Histopathology showed the excised mass to be a grade 1 soft tissue sarcoma, most likely a malignant peripheral nerve sheath tumour.

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Control of the estrous cycle in guinea-pig (Cavia porcellus)

Theriogenology ◽

10.1016/j.theriogenology.2012.03.034 ◽

2012 ◽

Vol 78 (4) ◽

pp. 842-847 ◽

Cited By ~ 4

Author(s):

A. Grégoire ◽

A. Allard ◽

E. Huamán ◽

S. León ◽

R.M. Silva ◽

...

Keyword(s):

Guinea Pig ◽

Estrous Cycle ◽

Cavia Porcellus

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Ashitaba (Angelica keiskei) leaves extract cream 8% inhibited the increase of melanin amount as effective as hydroquinone cream 4% and inhibited the increase of tyrosinase enzymes not as effective as hydroquinone cream 4% in the ultraviolet B-exposed Guin

Neurologico Spinale Medico Chirurgico ◽

10.36444/nsmc.v4i1.147 ◽

2021 ◽

Vol 4 (1) ◽

pp. 22-27

Author(s):

Chynthia Friama ◽

Anak Agung Gde Putra Wiraguna ◽

Wimpie Pangkahila

Keyword(s):

Guinea Pig ◽

Sun Exposure ◽

Ultraviolet B ◽

Premature Aging ◽

Control Group ◽

Cavia Porcellus ◽

Control Group Design ◽

Angelica Keiskei ◽

The Mean ◽

Tyrosinase Enzyme

Background: Excessive sun exposure results in increased activity of the tyrosinase enzyme and the amount of melanin in the skin which causes hyperpigmentation, a sign of premature aging. The purpose of this study was to prove that Ashitaba (Angelica keiskei) leaves extract cream 8% inhibited the increase of melanin and tyrosinase enzymes as effective as hydroquinone cream 4% in the ultraviolet B-exposed guinea pig (Cavia porcellus) skin. Methods: This study used a randomized post-test only control group design. The subjects were 36 male guinea pigs (Cavia porcellus). Subjects were divided into two groups, the hydroquinone cream 4% group and the Ashitaba leaves extract cream 8% group exposed to UVB light. Skin samples were collected 48 hours after the last exposure to measure the tyrosinase enzyme levels using the ELISA method and the amount of melanin was examined by Masson-Fontana staining. Results: The mean levels of tyrosinase in the hydroquinone cream 4% group was 19.51 ± 5.16 ng/L and the Ashitaba leaves extract cream 8% group was 23.76 ± 3.09 ng/L (p = 0.005). The mean amount of melanin in the hydroquinone cream 4% group was 2.98 ± 2.27% and the Ashitaba leaves extract cream 8% group was 4.77 ± 3.33% (p = 0.069). Conclusion: The administration of Ashitaba (Angelica keiskei) leaves extract cream 8% inhibited the increase of melanin amount as effective as hydroquinone cream 4% and inhibited the increase of tyrosinase enzymes not as effective as hydroquinone cream 4% in the ultraviolet B-exposed guinea pig (Cavia porcellus) skin.

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Tibial osteosynthesis in a guinea pig (Cavia porcellus)

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/1678-7498 ◽

2015 ◽

Vol 67 (1) ◽

pp. 89-93 ◽

Cited By ~ 2

Author(s):

A.S. Macedo ◽

M.A. Goulart ◽

M.M. Alievi ◽

V.S. Mombach ◽

Í.S. Dal-Bó ◽

...

Keyword(s):

Guinea Pig ◽

Callus Formation ◽

Cavia Porcellus ◽

Diaphyseal Fracture ◽

Left Tibia ◽

Pelvic Limb

A guinea pig was presented with left pelvic limb lameness after unknown trauma. Radiographs revealed complete oblique diaphyseal fracture of the distal third of the left tibia and fibula. The guinea pig was treated surgically with an intramedullary pin. The day after surgery the guinea pig was using the limb comfortably (grade 1/5 lameness). Callus formation was obtained 21 days after surgery without complications.

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