Feed Consumption, Body Weight Gain and Carcass Characteristics of Jeju Native Cattle and Its Crossbreds Fed for Short Fattening Period

Slaughterhouse and wet market wastes are pollutants that have been always neglected by society. According to the Food and Agriculture Organization of the United Nations, more than three billion and nineteen million livestock were consumed worldwide in 2018, which reflects the vast amount and the broad spectrum of the biowastes generated. Slaughterhouse biowastes are a significant volume of biohazards that poses a high risk of contamination to the environment, an outbreak of diseases, and insecure food safety. This work comprehensively reviewed existing biowaste disposal practices and revealed the limitations of technological advancements to eradicate the threat of possible harmful infectious agents from these wastes. Policies, including strict supervision and uniform minimum hygienic regulations at all raw food processing factories, should therefore be tightened to ensure the protection of the food supply. The vast quantity of biowastes also offers a zero-waste potential for a circular economy, but the incorporation of biowaste recycling, including composting, anaerobic digestion, and thermal treatment, nevertheless remains challenging.

show abstract

Feed consumption, growth performance and carcass evaluation of Korean Holstein bulls fed either conventional or organic diets

Lee

Khan

Kim

et al. 2009

Anim. Prod. Sci.

View full text Add to dashboard Cite

Feed consumption, bodyweight gain and carcass evaluation of Holstein bulls fed either conventional (CON) or organic (ORG) diets were compared. Animals were randomly assigned to either CON (n = 15) or ORG (n = 15) treatments when 6 months old. Inclusion rates of the ingredients were similar in CON and ORG diets formulated for growing (6–12 months of age) and fattening (13–18 months of age) periods. Ingredients of organic origin were used to formulate ORG growing and fattening diets. The bulls on the CON diet were vaccinated, de-wormed and treated conventionally (with antibiotics) against any sign of illness. No dietary or implant growth promotant was used. The bulls on the ORG diet were vaccinated although they were not de-wormed or treated against illness using conventional methods. Instead they were allowed to recover naturally from illness for 3 days. However, if the illness persisted beyond 3 days, they were treated using conventional methods. Consumption of concentrate and rice straw during growing, fattening and overall periods (6–18 months of age) was the same in bulls fed the CON or ORG diets. Bodyweight gain, total dry matter (concentrate and straw) intake and feed to gain ratio during growing and fattening were not affected by the treatments. Daily feed cost and feed cost for unit gain were greater in bulls fed the ORG diet than those fed the CON diet. Weight of cold carcass and different carcass cuts of the bulls were not affected by the treatment. According to the Korean beef grading system, the carcasses from bulls fed either CON or ORG diets were graded similarly but were of lower quality. The Korean beef quality grade is primarily determined by marbling score. The bulls in this study were slaughtered earlier (at 18 months of age) than the conventional slaughtering age of beef cattle (~30 months) in Korea to produce highly marbled beef. It is concluded that the bulls fed ORG diets performed equally, and produced carcasses of similar quality, to those fed CON diets. However, feed costs for a unit bodyweight gain were significantly greater in the ORG diet compared with the CON diet.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Feed Consumption, Body Weight Gain and Carcass Characteristics of Jeju Native Cattle and Its Crossbreds Fed for Short Fattening Period

Cited by 5 publications

References 36 publications

Nutritional status of grazing Lowline Angus crossbred supplemented with fermented cassava starch residue

Nutritional status of grazing Lowline Angus crossbred supplemented with fermented cassava starch residue

Biowastes of slaughterhouses and wet markets: an overview of waste management for disease prevention

Feed consumption, growth performance and carcass evaluation of Korean Holstein bulls fed either conventional or organic diets

Contact Info

Product

Resources

About