Influence of the Temperament Over The Milk-Yield of Goats of Bulgarian White Milk Breed and Its Cross-Breeds With Togenburg and Anglo-Nubian Breed

Yıl 2014, Cilt: 1 Sayı: Özel Sayı-2, 2046 - 2048, 01.03.2014

Svetoslava Stoycheva Tsvetomira Hrıstova Penko Zunev - -

Öz

The present study had the aim to study the relation between milk productivity and the temperament of goats of Bulgarian White Milk breed and its cross-breeds with Toggenburg and Anglo-Nubian. The methodology was used after the model of Dimitrov et al. (2008) applied for sheep. From 53 goats examined, 35 were determined as having a nervous temperament (0 and 1 spot) and 18 with a calm temperament (2 and 3 spots). In relation to determining the influence of temperament of mother goats on their milk productivity, data from studbooks were used for the average milk-yield for lactation of each goat. In the present experiment we found that the emotional susceptibility of goats influenced their milk productivity. For animals with a calm temperament average milk-yield of 596 l was registered, which was 20 l more than in goats with a nervous temperament (576 l). Due to the small number of animals, we could not draw a well-grounded conclusion for the influence of temperament on the milk-yield for different ages in goats

Anahtar Kelimeler

goats, behaviour, milk yield, temperament

Influence of the Temperament Over The Milk-Yield of Goats of Bulgarian White Milk Breed and Its Cross-Breeds With Togenburg and Anglo-Nubian Breed

Öz

Anahtar Kelimeler

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Kaynakça

• BELYAEV D.K., Behaviour and reproductive function of domestic sheep / In book: Problems of theoretical and applied genetics. – Novosibirsk: СО АН СССР/USSR. С. 380- 401, 1973. MARTINOVA V.N.
• IVANOV I., DZHORBINEVA M., PEEVA ZH. III. Influence of temperament on mother behavior, milk yield and fertility in dairy sheep. Animal science, XLII, 2, 9-14, 2005. DIMITROV I.,
• STAYKOVA G., STANCHEVA N., PEEVA ZH., AND LALEVA ST. Assessment of level of fear susceptibility toward unknown human being in ewe lamb from the synthetic population of Bulgarian White Milk, 200 BAROWICZ T. Inhibitory effect of adrenaline on oxytocin release in the ewe during the milk-ejection reflex. Journal of Dairy Research, 46, 41–46, 1979. GOREWIT R.C.,
• Mechanisms involved in the adrenalin-induced blockade of milk ejection in dairy cattle. Proceedings of the Society for Experimental Biology and Medicine, 180, 340–347, 1985. M.C.
• LEFCOURT A.M., AKERS R.M. Small increases in peripheral noradrenaline inhibit the milk-ejection response by means of a peripheral mechanism. Journal of Endocrinology, 100, 337– 344, 1984.
• MCKUSICK B.C., THOMAS D.L., BERGER Y.M., MARNET P.G. Effect of milking interval on alveolar versus cisternal milk accumulation and milk production and composition in dairy ewes. Journal of Dairy Science, 85, 2197–2206, 2002.
• MURRAY T.L., BLACHE D.B., BENCINI R. Calm dairy ewes produce more milk than nervous dairy ewes. School of Animal Biology, The University of Western Australia, Stirling Highway, Crawley W.A. 6009, 2006.
• SBAJA R.A., SCHMIDT G.H. Epinephrine inhibiting milk ejection in lactating cows. Journal of Dairy Science, 58, 344–348, 1975.
• SILANKOVE N., SHAMAY A., SHINDER D., MORAN A. Stress down regulates milk yield in cows by plasmin induced beta-casein product that blocks K+ channels on the apical membranes. Life Sciences, 67, 2201–2212, 2000.