Effect of fat supplementation type on milk production, and composition and mammary gland morphological parameters in primiparous Sannen does | ||
| تولیدات دامی | ||
| Article 14, Volume 22, Issue 3, September 2020, Pages 479-490 PDF (1000.81 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22059/jap.2020.292240.623467 | ||
| Authors | ||
| Hoda Javaheri Barfourooshi* 1; Hasan Sadeghipanah2; Nader Asadzadeh3; nader papi4; Fazlolah Mousavipoor5 | ||
| 1Department of Animal production management, Animal Science Research Institute | ||
| 2Department of animal production management, Animal Science Research institute | ||
| 3Department of animal production management, Animal Science Research Institute | ||
| 4Agricultural Research Education and Extension Organization (AREEO), Animal Science Research Institute of Iran | ||
| 5Dairy lab, Central Laboratory, Animal Science Research Institute | ||
| Abstract | ||
| The effect of diets containing different sources of fat on milk production and composition, and mammary gland morphology of the 40 primiparous Saanen does was studied during the last two months of pregnancy to 12 weeks after kidding. Goats were divided into four groups of 10 each, based on the average initial live weight and were assigned to one of four experimental diets. The diets included a non-fat diet, diet containing saturated fat, diet containing roasted soybeans, and a diet containing extruded flaxseed. The results showed that during the whole experimental period, milk production in goats fed with diet containing flaxseed was higher than in goats fed with non- fat diet or saturated fat diet (P<0.05). The average daily milk production of goats fed a diet containing flaxseed in the first, second, third, ninth, tenth, and twelfth weeks of lactation was higher than that of goats fed non-fat diet or saturated fat (P<0.05). The percentage of protein, lactose, solids not fat, and milk solids in non-fat diet goats were higher than the other groups (P<0.05). The percentage of fat to protein ratio in goats fed a diet containing unsaturated fat was higher than in other groups (P<0.05). Consumption of diets containing unsaturated fats improved the volume, environment, and size of mammary gland quarters (P<0.05). In general, the use of fat supplements rich in unsaturated fatty acids such as soybeans or flaxseed, in the close-up and early lactation diets could improve lactation performance in primiparous Sannen goats. | ||
| Keywords | ||
| Fat supplements; Lactation performance; Mammary gland morphology; Pregnancy; Sannen goat | ||
| References | ||
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1. Abu-Ghazaleh AA, Schingoethe DJ, Hippen AR, 21. Ordway RS, Ishler VA and Varga GA (2002) | ||
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