Rabbit production is increasing in developing countries and can play a crucial role in the fight against poverty. The current work assessed the effect on rabbit does' reproduction and young kits' growth when either , common name Guinea grass, or , common name Beggarweed is included in their diet. Diets ReC and GrC (standard granulated diets) served as control diets, formulated for doe production and kit owth respectively. The trial diets were diets RePan/GrPan (diet ReC/GrC supplemented with dry ) and diets ReDes/GrDes (diet ReC/GrC supplemented with dry ). Thirty-six primiparous local breed five-month old rabbit does were randomly allocated to each one of the three dietary treatments. After a 15-day dietary adaptation period, does were each bred to one of 12, related, breeding males. Does were then assigned to individual maternity cages maintaining the same dietary treatment for the ensuing 65 days of the trial (30 days of gestation + 35 days of suckling). Thus, there were a total of 12 replicates per treatment: diet ReC, diet RePan or diet ReDes. At weaning, 72 kits, from the three adult feed treatment groups, were, while maintaining the integrity of the feed group of their individual mothers, divided into 12 blocks with 6 weaned kits per block, with each block allocated one of the three diets. Thus, for each of the three diets there were four separate blocks, i.e., four replicates, each with six group-housed weaned kits that received a growth diet which contained the same supplement or not as their mother diet to which they had access prior to weaning; the control diet GrC (Composition slightly different from Diet ReC composition) and trial diets GrPan and GrDes over a 3-day transition phase were adapted to the weaned kits physiological state and fed for a total of 56 days. The results indicated that the use of significantly improved ( < 0.05) litter size, milk quantity, and kit survival rate from birth to weaning as compared with both control and RePan diets. The study showed that after weaning, compared with control and GrPan diets, the use of increased ( < 0.05) the growth performance of weaned kits, improved meat nutritional quality by reducing ( < 0.05) cholesterol concentration and increasing ( < 0.05) the n-3 fatty acid proportion, and also reduced the individual kit feed cost to slaughter weight.
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http://dx.doi.org/10.1093/tas/txac142 | DOI Listing |
Animal
December 2024
Institute of Animal Science and Technology, Universitat Politècnica de València, Camino de Vera, s/n. 46022 Valencia, Spain.
Genetic selection for growth rate has often been related with potential negative effects on various reproductive traits across different species. Using rabbit as a model, this study has evaluated for the first time how genetic selection for growth rate has affected feed efficiency, resource allocation, blood traits, reproductive performance and survival during five reproductive cycles in rabbit does. To this end, we used 88 reproductive rabbit females from two vitrified and rederived populations of the same paternal line, differing only in 18 generations of genetic selection for growth rate (n = 44 for R19V and n = 44 for RV37V).
View Article and Find Full Text PDFJ Anim Sci
January 2023
Department of Animal Science, University of California, Davis, CA 95616, USA.
The objectives of this study were to investigate the in vitro immune-modulatory effects of monoglycerides and zinc glycinate with porcine alveolar macrophages (PAM) and their impact on epithelial barrier integrity using the intestinal porcine enterocyte cell line (IPEC-J2). Cell viability was assessed using a Vybrant MTT assay to determine the appropriate dose range of monoglyceride blend (C4, C8, and C10) and zinc glycinate. In experiment 1, IPEC-J2 cells (5 × 105 cells/mL) were seeded and treated with each compound (monoglycerides: 0, 25, 100, 250, 500, and 1,000 µg/mL; zinc glycinate: 0, 2, 5, 12.
View Article and Find Full Text PDFJ Anim Sci
January 2024
College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China.
The lactation-pregnancy overlap in the industrialized 49-d breeding model increases nutritional demands for lactating-pregnant rabbit does. This study examined the effects of folic acid (FA) on the production performance and intestinal microflora of does with different litter sizes (LS, or number of kits). A total of 144 third-parity Hyplus does, aged 11 mo and weighing approximately 5.
View Article and Find Full Text PDFVet Sci
October 2024
School of Biosciences and Veterinary Medicine, University of Camerino, Via Circonvallazione 93/95, 62024 Matelica, Italy.
J Trace Elem Med Biol
September 2024
Sichuan Mianyang 404 Hospital, Mianyang, Sichuan 621010, PR China. Electronic address:
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