Abstract
An experiment was conducted to examine the effect of estrus synchronization protocols and steroid hormones concentrations on somatic cell count (SCC) of transitional-anestrus local-Damascus cross goats’ milk. Fifty-six goats (2–4-year old) were randomly assigned to three groups: fluorogestone acetate (FGA, n = 19), FGA-Prostaglandin (FGA-PGF, n = 19) and control (n = 18) groups. Intravaginal sponge containing 40 mg FGA was inserted for 13 days and an injection of 600 IU equine chorionic gonadotropin (eCG) was administered for goats of FGA and FGA-PGF groups at the time of sponge removal (day 0). In addition, goats of FGA-PGF group were injected with 10 mg dinoprost tromethamine (\( {\text{PGF}}_{{2\alpha }} \)) on day 0. Five fertile local-Damascus cross bucks were turned-in with all goats on day 0. Blood and milk samples were collected from all goats on days -13 (beginning of experiment), -6, 0, 1, 2, 7, 13 and 20 (end of the experiment). Four-year old and second-parity goats had significantly higher (p < 0.05) SCC of both udder halves than 2- and 3-year old and first-parity goats, respectively. There was a significant effect (p < 0.05) for treatment and number of kids born in the last kidding season on SCC of both udder halves. Neither estradiol nor progesterone concentrations were correlated with SCC in goats in this experiment. The SCC of both udder halves and left udder halves in goats of the control and FGA groups, respectively, increased significantly (p < 0.05) after sponge removal and buck introduction when compared with day 0, with no differences in the FGA-PGF group. This increase in SCC of the control and FGA groups coincided with peak estrus behavior. However, SCC was far below the upper limit of the current standard for normal milk. In conclusion, induction of estrus with progestagen based programs and buck introduction may cause temporary significant increase in SCC. However, the SCC values during this period of temporary increase were still in the range of acceptable values for normal milk. With the current standards for SCC of 1,000,000/ml as legal limit for abnormal milk control programs in goats, estrus synchronization programs and the estrus status should not be considered when bulk-tank milk SCC is being investigated.
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References
Al-Merestani, M.R., Zarkawi, M., Wardeh, M.F., 2003. Improving the reproductive efficiency, pregnancy diagnosis and monitoring the resumption of luteal activity in indigenous Damascus goats. Reproduction in Domestic Animal, 38, 36–40.
Aleandri, M., Fagiolo, A., Calderini, P., Colafrancesco, G., Giangolini, G., Rosati, R., De Michelis, F., 1994. Studies conducted on somatic cells count of goat milk. International symposium on somatic cells and milk of small ruminants, Bella, Italy, pp. 55–58.
Anderson, K.L., Smith, A.R., Spahr, S.L., Gustafsson, B.K., Hixon, E., Weston, P.G., Jaster, E.H., Shanks, R.D., Whitmore, L., 1983. Influence of the estrous cycle on selected biochemical and cytologic characteristics of milk of cows with subclinical mastitis. American Journal of Veterinary Research, 44, 677–680.
Bergonier, D., de Cremoux, R., Rupp, R., Lagriffoul, G., Berthelot, X., 2003. Mastitis of dairy small ruminants. Veterinary Research, 34, 689–716.
Berning, L.M., Paape, M.J., Miller, R.H., 1987. Effects of estradiol benzoate and estrus on N-acetyl-beta-D-glucosaminidase activity and somatic cell concentration in milk. Journal of Dairy Science, 70, 1302–1306.
Calderini, P., Colafrancesco, R., Fagiolo, A., Reitano, M.E., De Michelis, F., 1994. Somatic cells count in milk from mastitis-free goats intensively reared and controlled until the sixth lactation. International symposium on somatic cells and milk of small ruminants, Bella, Italy, pp. 7–9
Chimineau, P., 1987. Possibilities for using bucks to stimulate ovarian and estrous cycles in anovulatory goats-a review. Livestock Production Science, 17, 135–147.
Contreras, A., Sierra, D., Corrales, J.C., Sanchez, A., Marco, J., 1996. Physiological threshold of somatic cell count and California mastitis test for diagnosis of caprine subclinical mastitis. Small Ruminant Research, 21, 259–264.
Cowan, C.M., Larson, L.L., 1979. Relationship of the estrous cycle to milk composition. Journal of Dairy Science, 62, 546–550.
Embert, H.C., 1986. Veterinary Clinical Pathology, 4th ed. Saunders, Philadelphia.
Gomes, V., Melville, P.D.L., Alice, M., Paiva, M., Madureira, K.M., Araujo, W.P., 2006. Effect of the stage of lactation on somatic cell counts in healthy goats (Caprae hircus) breed in Brazil. Small Ruminant Research, 64, 30–34.
Guidry, A.J., Paape, M.J., Pearson, R.E., 1975. Effects of estrus and exogenous estrogen on circulating neutrophils and milk somatic cell count concentration, neutrophil phagocytosis, and occurrence of clinical mastitis in cows. American Journal of Veterinary Research, 36, 1555–1560.
Hinckley, L.S., 1983. Somatic cell count in relation to caprine mastitis. Veterinary Medicine, 78, 1267–1271.
King, J.O.L., 1977. The effect of oestrus on milk production in cows. Veterinary Record, 101, 107–108.
Lafi, S.Q., Al-Majali, A.M., Rousan, M.D., Alawneh, J.M., 1998. Epidemiological studies of clinical and subclinical ovine mastitis in Awassi sheep in northern Jordan. Preventive Veterinary Medicine, 33, 171–181.
Lerondelle, C., Richard, Y., Issartial, J., 1992. Factors affecting somatic cell counts in goat milk. Small Ruminant Research, 8, 129–139.
McDougall, S., Murdough, P., Pankey, W., Delaney, C., Barlow, J., Scruton, D., 2001. Relationships among somatic cell count, California mastitis test, impedance and bacteriological status of milk in goats and sheep in early lactation. Small Ruminant Research, 40, 245–254.
McDougall, S., Voermans, M., 2002. Influence of estrus on somatic cell count in dairy goats. Journal of Dairy Science, 85, 378–383.
Menzies, P.I., Ramanoon, S.Z., 2001. Mastitis of sheep and goats. The Veterinary Clinic of North America: Food Animal Practice, 17, 333–358.
Paape, M.J., Capuco, A.V., 1997. Cellular defense mechanisms in the udder and lactation of goats. Journal of Animal Science, 75, 556–565.
Paape, M.J., Wiggans, G.R., Bannermana, D.D., Thomasc, D.L., Sanders, A.H., Contreras, A., Moroni, P., Miller, R.H., 2007. Monitoring goat and sheep milk somatic cell counts. Small Ruminant Research, 68 114–125.
Peaker, M., Linzell, J.L., 1974. The effects of oestrous and exogenous oestrogens on milk secretion in the goat. Journal of Endocrinology, 61, 243–253.
SAS/STAT, 1990. SAS/STAT guide to personal computers (Version 6, ed. 4). SAS Inst., Inc., Cary, NC, USA.
SPSS13.0, 2004. SPSS software (Version13.0), SPSS Inc., Chicago, IL, USA
Zarkawi, M., Al-Merestani, M.R., Wardeh, M., 1999. Induction of synchronized oestrous in indigenous Damascus goats outside the breeding season. Small Ruminant Research, 33, 193–197.
Zeng, S.S., Escobar, E.N., 1995. Effect of parity and milk production on somatic cell count, standard plate count and composition of goat milk. Small Ruminant Research, 17, 269–274.
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Talafha, A.Q., Lafi, S.Q. & Ababneh, M.M. The effect of estrus synchronization treatment on somatic cell count of transitional-anestrus local-Damascus cross breed goats’ milk. Trop Anim Health Prod 40, 185–192 (2008). https://doi.org/10.1007/s11250-007-9079-0
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DOI: https://doi.org/10.1007/s11250-007-9079-0