期刊
RESEARCH IN VETERINARY SCIENCE
卷 142, 期 -, 页码 1-11出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.rvsc.2021.10.025
关键词
Prenatal undernutrition; Fetal programming; Testosterone; NEFA; Tenderness; Fatty acid profile
资金
- Spanish Ministry of Economy and Business [INIA RTA 2013-00059-C02, INIA RZP 2015-001, INIA RZP 2017-00001]
- European Regional Development Funds [INIA RTA 2013-00059-C02, INIA RZP 2015-001, INIA RZP 2017-00001]
- Government of Aragon [A14_17R]
- INIA, Government of Spain
Maternal undernutrition in early gestation negatively impacted the growth, metabolism, and meat quality of male offspring in cattle, leading to lower weight, fattier carcasses, and impaired tenderness. Regardless of the breed, maternal undernutrition affected meat color and increased the content of some healthy fatty acids in the meat.
The effects of maternal undernutrition in early gestation on growth, metabolic and endocrine profiles, carcass and meat quality of male offspring in cattle were assessed. Twenty-one Parda de Montana and 14 Pirenaica cows received a CONTROL (100% nutrition requirements) or a SUBNUT (65%) diet from day 0 to 82 of gestation and thereafter were fed to requirements until calf weaning at 4 months of age. The performance and physiological profiles of male offspring during an 8-month fattening period were analyzed. Bulls were slaughtered at 12 months of age, and their carcasses and meat color, tenderness and intramuscular fatty acid profile were evaluated. Maternal undernutrition increased plasma NEFAs and impaired the growth of Pirenaica bulls, resulting in lower weights at slaughter and fatter carcasses with impaired meat tenderness. Irrespective of the breed, maternal undernutrition affected meat color and increased the meat content of some healthy fatty acids. In summary, early maternal undernutrition affected the fetal programming of beef male offspring with persistent consequences at slaughter.
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