| Titles |
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English :
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Effect of recombinant bovine somatotropin on milk production and composition of lactating buffaloes
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Arabic :
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تأثير استخدام السوماتوتروبين المخلق صناعيا على انتاج اللبن و مكوناتة في الجاموس المصرى
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| Abstract |
Effects of recombinant bovine somatotropin (rbST) treatment on buffalo milk production and composition were studied under the Egyptian dairy farm conditions. Thirty-six buffaloes delivered during the same season were assigned to either control (n=16) or rbST treated groups (n=20). The treated animals were subcutaneously injected biweekly by 500 mg of rbST over a period of five months of lactation, starting at 50 days postpartum. The results showed that rbST treated buffaloes produced significantly (P<0.01) higher average daily milk yield than controls. Average daiiy milk yield of the experimental period were 8.57±0.39kg and 10.56±0.35 kg for control and treated buffaloes, respectively. Treatment with rbST did not affect buffaloes milk composition (fat, lactose, total solids and solids non fat contents), while it significantly affected(P<0.01) the milk protein %. A slight significant (P<0.05) effect on fat percentage was found during different phases of lactation between treated and control animals (at 5th month of lactation).Percent of milk protein was significantly(P<0.01) affected by the interaction between treatment and month of lactation. Treatment with rbST had a significant (P<0.01) effects on percentage of fatty acids in milk fat which characterized by clearly higher percent of Myristic acid (C14.00), Oleic acid (C 18.10) and Stearic acid (C18.00)' The percentages of short chain (
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| Publication year |
2005
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| Pages |
1909-1916
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى -الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| City |
المنصورة
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| serial title |
Journal Agricultural Science Mansoura University
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| Author(s) from ARC |
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| External authors (outside ARC) |
محمد بدر ابو العلا
جامعة المنصورة
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| Agris Categories |
Animal physiology - Reproduction
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AGROVOC
TERMS |
Fatty acids.
Milk.
Milk production.
Somatotropin.
Water buffaloes.
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| Publication Type |
Journal
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