Scotty,
Yes I know about a buck and x and y chromosomes. I will also preface my response with a true desire to not be pretentious or vain toward a fellow Aggie and try to humbly give some background. Graduated from TAMU in WFS 1975 and became a biologist and worked in that field for some years in both public and private entities. Studied WFS under Dr. Ingliss, Dr. Teer, Dr. Arnold and Dr. Kroll. Have had the privilege to confer and work with biologist at KerrWMA and many of our state TPWD biologist in my journey. Was blessed with having the opportunity to manage various ranches in the state and work with other fellow WB's within these entities for over 40 years. Also very blessed to have had my own ranch that I have managed for just at 30 years.......yes you can label me as an "old".
During these years I have seen the internal parts of literally hundreds of bucks and does in the accumulation of data that we needed....touching and seeing/examining embryos, determining their sex and number etc. In addition, I have documented and recorded population statistics of whitetails and some species of exotics as it relates to nutrition, range conditions, supplemental feeding, and countless other environmental factors. I have seen does with both buck and doe reproductive parts, and, conversely, I have seen bucks with both doe and buck reproductive parts.
I have worked with vets and other biologist doing ultrasounds on bred does and documenting data on the effects of range conditions and nutrition on the survivability of said embryos.
Myself, other biologist, and wildlife managers have witnessed first hand what a whitetail doe will do in the face of extreme drought, poor nutrition, and poor range conditions as far as aborting, abandoning or terminating the feeding and development of an embryo inside her.
I am stating the above not to brag......I do not classify or remotely think I am an "expert".....far from it. I am stating what we were taught in those years and by what 30 plus years of managing and working with whitetails have taught me and some other fellow biologist and managers.
I will add that I do not condone or support deer breeding or the raising deer in pens or any of the practices of AI, genetic manipulation, forced nutritional manipulation etc. I have no experience in those arenas so I can not speak on what can happen to whitetails and their reproduction traits and effects that can occur therein. Perhaps those deer, under those conditions can all throw tripletts....I have no idea.
I have watched does abandon fawns during poor range conditions or droughts. I have witnessed whether those were mainly buck or doe fawns. I have witnessed pregnant does with knowingly two embryos (affirmed by ultrasound) aborting one or both due to poor nutrition and extreme drought conditions. In the ranches I managed, including my own, I have documented in all the years, two confirmed instances of a doe having trips.
I responded to you because you asked for references of these claims....it is my hope that the above will perhaps lend, at least a small amount of credibility to my statements from someone and others who have spent years in the field touching and learning about whitetails.......and knowing that learning curve will always continue.
The statements I made were not just from me but also from other folks, (including some fellow Aggies) in the field with much greater credentials and expertise than myself.......sadly many no longer on this earth.
The greatest research lab for me has been my own ranch and to be able and touch and work with the animals on a daily basis. One thing has stood out for me working with the deer and exotics on the ranch...if you think you know it all...get ready to have something happen that will surprise you and humble you very quickly. Animals and Mother Nature are amazing and resilient.
I will add that TPWD holds some good classes/workshops from time to time at the KerrWMA. They do a really good job educating MLD holders and interested land owners and other wildlife professionals on many of the above topics.