The Influence of Recombinant Bovine Somatotropin (rbST) on the Metabolic Profile and Milk Composition of Lactating Murrah Buffalo

被引:0
|
作者
Feckinghaus, Marcelo Arne [1 ]
Diogo, Mariana Guimaraes de Oliveira [2 ]
Storillo, Vanessa Martins [2 ]
Pogliani, Fabio Celidonio [1 ]
Monteiro, Bruno Moura [1 ]
Neto, Paulo Fantinato [2 ]
Yasuoka, Melina Marie [2 ]
Birgel, Daniela Becker [3 ]
Birgel Junior, Eduardo Harry [3 ]
机构
[1] Univ Sao Paulo, Sch Vet Med & Anim Sci, Dept Internal Med, 87 Prof Orlando Marques de Paiva Ave, BR-05508010 Sao Paulo, SP, Brazil
[2] Univ Sao Paulo, Sch Vet Med & Anim Sci, Dept Surg, 87 Prof Orlando Marques de Paiva Ave, BR-05508010 Sao Paulo, SP, Brazil
[3] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Vet Med, 225 Duque Caxias, BR-13635900 Pirassununga, SP, Brazil
来源
ANIMALS | 2024年 / 14卷 / 04期
基金
巴西圣保罗研究基金会;
关键词
bovine somatotropic hormone; rbST; metabolic parameters; milk yield; PROLONGED-RELEASE FORMULATION; DAIRY-COWS; REPRODUCTIVE-PERFORMANCE; HOLSTEIN COWS; YIELD; ENERGY; SOMETRIBOVE; HEALTH; GROWTH;
D O I
10.3390/ani14040636
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The use of recombinant bovine somatotropin (rbST) leads to an increase in variable amounts of milk production in buffalo, but there is a lack of information on the influence of rbST on their metabolism. This study looked at the effects of a single 500 mg dose of rbST on the lipid profile, liver and kidney function, and physical, chemical, and cellular constitution of milk in 14 buffalo over 14 days, from the 100th day of lactation, compared with 14 animals in a control group. From the first day after rbST, there was a rise in beta-hydroxybutyrate (ss-HBO), possibly due to higher dry matter intake or the biotransformation of NEFA into ss-HBO. The treatment did not influence blood glucose, non-esterified fatty acids (NEFAs), triglycerides, cholesterol, total protein, albumin, AST, GGT, bilirubin, urea, or creatinine levels. In 71.3% of the buffalo, there was a gradual increase in milk production, with the maximal response occurring in the first week followed by a gradual decrease, whilst in 21.4%, the increase in production occurred between 7 and 10 days. Only 7.1% of the animals did not respond. On the 3rd, 5th, 7th, and 10th days after treatment, an increase was found in daily milk production between the two groups equal to 1.04, 1.52, 1.42, and 1.06 L, respectively. In relative terms, this means an increase in milk production, respectively, of 15.1%, 21.0%, 19.8%, and 15.1%. The constitution of the milk showed no difference in the amounts of fat, lactose, total solids, or somatic cell count; however, on the third day after rbST administration, there was a decrease in protein. Notably, from the fifth day, the protein values showed no statistical difference. It can be concluded that the use of rbST in buffalo from the 100th day of lactation is metabolically safe since the treatment neither caused imbalances in fat metabolism nor overloaded the liver or renal function, and the changes in milk composition were transient and limited to a decrease in milk protein.
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页数:12
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